Answer:
After 9 years mother's age will be 3 times more than kofi's age .
Step-by-step explanation:
Given
Age of Kofi = 8 years
Age of Mother = 42 years
According to question , 3 times more than kofi's age .
=> ( 8+ x ) 3 = 42 + x
=> 24 + 3x = 42 + x
=> 3x - x = 42 - 24
=> 2x = 18
=> x = 18/2
=> 9
After 9 years ,
Age of Kofi = 8 + 9 = 17 years Age of Mother = 42 + 9 = 51 yearsYea solve equation by factoring
7x² - 39x + 17 = -3
Answer:
x = 4/7, 5
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Answer:
x = 4/7 or x = 5
Step-by-step explanation:
Step 1: Add to 3 to both sides
[tex]7x^2-39x+17+3=-3+3[/tex] [tex]7x^2-39x+20=0[/tex]Step 2: Factor by grouping
This equation is in the form ax² + bx + c = 0. Since there are no terms that multiply to 20 and add to -39, we have to find terms that multiply to a (7) * (20) and add to -39.
Factors of 140: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, and 140-35 x -4 = 120, and -35 - 4 = -39. Thus, the two terms are -35 and -4.Now, we split -39x into -35x and -4.
7x^2 - 35x - 4x + 20.(7x² - 35x) + (-4x + 20)Next, we factor each expression in the parentheses. After that, we put the terms outside the parentheses together. Reminder, the terms inside the parentheses should be the same.
[tex]7x(x-5)-4(x-5)[/tex] [tex](7x-4)(x-5) = 0[/tex]Step 3: Solve for x using 7x - 4 = 0 and x - 5 = 0.
[tex]7x-4=0[/tex] [tex]7x-4+4=0+4[/tex] [tex]7x=4[/tex] [tex]7x/7 = 4/7[/tex] [tex]x= 4/7[/tex]or
[tex]x-5=0[/tex] [tex]x-5+5=0+5[/tex] [tex]x=5[/tex]How to simplify the ratio of 40cm : 2m
7(7-2 × 3) = ?
What is the answer?
A. 24
B. 7
C. 14
D. 26
Answer:
b) 7 option B 7 is the answer
Step-by-step explanation:
bidmas rule:
7-2×3
2×3= 6
7-6=1
7×1= 7
therefore the answer is 7.
Answer: The answer is [tex]B. 7[/tex]
Step-by-step explanation:
[tex]7(7-2[/tex] × [tex]3)[/tex]
Simplify the expression.
[tex]7-2= 5[/tex]
[tex]7[/tex] × [tex]3[/tex] = [tex]21[/tex]
[tex]21[/tex] ÷ [tex]3=7[/tex]
Mrs. gellar works at a diner. at the end of
her shift, she was putting away pies in the
display case. there were 5 pies, and of 3/8
each pie left. what fraction of the pies did
mrs. gellar put away?
Which two expressions are equivalent?
O z
7 (6+z)
7.6+7.2
O
3 (9+y)
3.9+ y
O
t +(4.5)
(t + 4).5
X + 12 : 4
(4+12) = x
Answer:
First option
Step-by-step explanation:
The result of first expression:
7(6+z) multiply 7 with inside the parenthesis
7(6+z) = 42 + 7z
the result of second expression:
since we need to do multiplying first,
7*6 = 42 and 7*z = 7z
then we add them
42 + 7z this is the same result we found for the first equation
A watch which looses a half a minute every hour was set to read the correct time at 0445hr on Monday. Determine in twelve hour system the time the watch will show on Friday at 1845hr the same week.
Answer:
see below
Step-by-step explanation:
Using a 24 HOUR SYSTEM
The total time from Monday to Friday times given
= 24 x 4 + (18:45 - 4:45) = 96 + 14 = 110 hours
110 hours * 30/3600 = .91667 hours lost = 55 minutes lost
watch will show 18:45 - 55 minute = 17:50 ( 5:50 in 12-hour system)
If the probability of a defect with the brakes or the chain is 6 percent, what is the probability of a chain defect?
1.5 percent
2 percent
2.5 percent
3 percent
The Probability of a chain defect will be 3%.
What is probability?Probability is defined as the ratio of the number of favourable outcomes to the total number of outcomes in other words the probability is the number that shows the happening of the event.
Let B be the event that brake defect .
Let C be the event that chain defect.
Since we have given that
Probability of a brake defect P(B) = 4%
Probability of both chain and brake defect P(B∩C) = 1%
Probability of either brake or chain defect P(E∪C) = 6%
So, we need to find the probability of a chain defect.
As we know the rule of probability.
P ( B U C ) = P(A) + P (B) - P ( B [tex]\cap[/tex] C)
6 = 4 + P (C) - 1
P (C) = 3
Hence, Probability of a chain defect is 3%.
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Coach Jamison wants to celebrate the final win of the school’s softball season with a trio to the local fast food place. The team buys 26 delicious burritos and 27 orders of savory chips for $86.90. A few of the players are still hungry so the coach buys 14 more burritos and 9 more orders of chips for $40.70. If you don’t include tax, what is the price of a burrito and the price of an order of chips?
The price of Burritos is $ 2.2 and the price of savory chips is $1.1
What is system of equations ?
A system of equations is a set or collection of equations that you deal with all together at once.
Linear equations (ones that graph as straight lines) are simpler than non-linear equations, and the simplest linear system is one with two equations and two variables.
The price of 26 delicious burritos and 27 orders of savory chips for $86.90
4 more burritos and 9 more orders of chips for $40.70
Let us consider the price of Burritos is x
and the price of savory chips is y
from the first statement we can form the equation
26*x +27*y = 86.9
and from the second statement we can form the equation
14*x + 9*y= 40.70
To determine the price of each we have to solve these system of equations.
On solving using elimination method
16x = 35.2
x = $2.2
and y = $1.1
Therefore the price of Burritos is $ 2.2 and the price of savory chips is $1.1.
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The price of Burritos is $ 2.2 and the price of savory chips is $1.1
What is system of equations ?A system of equations is a set or collection of equations that you deal with all together at once.
The price of 26 delicious burritos and 27 orders of savory chips = $86.90
The price of 14 more burritos and 9 more orders of chips = $40.70
Let us consider the price of Burritos is x
and, the price of savory chips is y
Now,
26x +27y = 86.9
and
14* + 9*= 40.70
On solving above two equation, we get
16x = 35.2
x = $2.2
and y = $1.1
Hence, price of Burritos is $ 2.2 and the price of savory chips is $1.1.
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Find the height of a cylinder with a volumeof 475pie cubic meteresand radius 5 meters
The height of the cylinder is 19 meters if the volume of 475pie cubic meters and the radius is 5 meters.
What is a cylinder?In geometry, it is defined as the three-dimensional shape having two circular shapes at a distance called the height of the cylinder.
We know the volume of the cylinder is given by:
[tex]\rm V = \pi r^2 h[/tex]
We have a volume of the cylinder:
V = 475π cubic meter
The radius r = 5 meters
475π = π(5)²h
h = 19 meters
Thus, the height of the cylinder is 19 meters if the volume of 475pie cubic meters and the radius is 5 meters.
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If f(x) = x² — 2x and g(x) = 6x + 4, for which value of x does (f + g)(x) = 0?
4
-2
2
04
Answer:
-2
Step-by-step explanation:
Given that;
f(x) = x² -2x
and g(x) = 6x + 4
(f + g)(x) = x²-2x+6x+4
:- x² +4x + 4 = 0
x² +2x +2x + 4 = 0
x(x + 2)+2(x + 2) = 0
(x + 2)(x + 2) = 0
:- x = -2
Sum= 5; Product = 6
Answer:
2 and 3
Step-by-step explanation:
[tex]3*2=6\\3+2=5[/tex]
A class has seven students. what is the probability that exactly four of the students were born on a weekday (monday through friday)?
The probability that exactly four of the students were been born on a weekday (i.e. Monday through Friday) is 0.2125.
What is the probability of determining that exactly four students were born on a weekday?To determine the probability, we need to first find the probability of having a student being born on a weekday.
[tex]=\mathbf{\dfrac{5}{7}}[/tex]
The probability of having 4 students born on a weekday is:
[tex]=\mathbf{(\dfrac{5}{7})^4}[/tex]
Since we have 4 students, we also need to find the probability of the students that are not being born, which is:
[tex]=\mathbf{(\dfrac{2}{7})^3}[/tex]
Also, there are [tex](^7_4)[/tex] = 35 ways to get four students out of seven students.
Therefore, we have the probability as:
[tex]\mathbf{P = 35 \times (\dfrac{5}{7})^4 \times (\dfrac{2}{7})^3}[/tex]
P = 0.2125
Therefore, we can conclude that the probability that exactly four of the students were born on a weekday is 0.2125.
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Subtract 59.05 from 70.00
Answer:
-10.95 hope it helps so yeah and if it's wrong sorry
Answer:
10.95
Step-by-step explanation:
When solving a problem like this you can just take the decimals then add then back at the end for example. ...
7,000
-
5,905
_______
1,095
Then, add the decimal back in its original spot to give you 10.95
Hope this helps!
plis help me!!!!!!!!!!!!!! it is very difficult for me
Answer:
See below ~
Step-by-step explanation:
Kindly note the 2nd equation in the above question formed will be :
2x + 4y = 20
The plotted graph is correct and it shows that the intersection of the lines (the solution) is at (2, 6), which means :
x (number of chickens) = 6y (number of sheep) = 2What is the circumference of this circle, in millimeters? use startfraction 22 over 7 endfraction for pi. a circle with radius 49 millimeters. 154 308 484 968
The circumference of the circle with a radius of 49mm is 308mm
How to find the circumference of a circle?The circumference of the circle is also known as its perimeter. The formula is expressed as:
C = 2pi r
r is the radius = 49mm
pi = 22/7
Substitute
C = 2 * 22/7 * 49
C = 2 * 22 * 7
C = 308mm
Hence the circumference of the circle with a radius of 49mm is 308mm
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Answer:
B
Step-by-step explanation:
what is 24 x 24x 25 x 710.
Answer:
24 x 24 x 25 x 710 = 10,224,000
Step-by-step explanation:
24 x 24 = 576
576 x 25 = 14, 400
14,400 x 710 = 10,224,000
lo que da en total= 10,224,000
Answer:
10224000 i used a calculator
Step-by-step explanation:
100 PTS AND WILL GIVE BRAINLY!!!
THE SCENARIO
The Tortoise and the Hare finally have their long awaited rematch. The Tortoise gets a
300 m lead and runs at 0.2 m/s. The Hare begins at the starting line and runs at a rate of 2 m/s. There is also a rat in this race. The Rat starts 350 m ahead of the Hare and runs back towards the starting line at a rate of 0.6 m/s.
THE CALCULATIONS
Create a table of values for each runner in the race. The domain for the race will be 0 ≤ t ≤ 200 seconds. You can decide on 5 time intervals for your table.
Answer:
Tortoise:
Hare:
Rat:
All will be shown later
Step-by-step explanation:
Equation for Torotise: f(x)=0.2(x)+300
Equation for the Hare: f(x)=2(x)
I hope it helps! I will show you screenshots in the comments
Solve for y when x = 5.
y = 3x + 4
Answer:
19
Step-by-step explanation:
Plug in
y = 3(5) + 4y = 19solve the system using substitution. show all work. {4x + 5y = 7 {y = 3x - 10
Answer:
x = 3, y = -1.
Step-by-step explanation:
4x + 5y = 7
y = 3x - 10
Substitute for y = 3x - 10 in the first equation:
4x + 5(3x - 10) = 7
4x + 15x - 50 = 7
19x = 7 + 50 = 57
x = 57/19 = 3.
Now plug x = 3 in the second equation
y = 3(3) - 10
y = 9 -10
y = -1.
Give the final answers in scientific notation
Answer:
I'm assuming you want me to do 18-23? Okay:
Step-by-step explanation:
18) 8.6(10^−4)+6.7(10^−5)
=0.000927 --> 9.27 × 10^-4
19) 3.5(10^3)−9(10^1)
=3410 --> 3.41 × 10^3
20) 5.6(10^4)(4.5(10^6))
=252000000000 --> 2.52 × 10^11
21) 7.6(10^−7)(8.9(10^−2))
=0 --> 0
22) 3.9(10^−12)/4(10^4)
=0 --> 0
23) 1.75(10^5)/5(10^−3)
=35000000 --> 3.5 × 10^7
-
Please comment below if you would like me to solve #24 :)
The bolded numbers are the answer, the underlined numbers are to show the question number. Hope this helped !!
Hey! So I need to study for my Algebra 1 finals can someone link me a video or give me a way to study for algebra 1. I have a week or so
Answer:
Review your state Standards.
Notes
Khan on your topic or grade level
Dealta Math
Math Nation
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
0.09
.............................
PLEASE HELP USING ALL MY POINTS FOR THIS!!! WILLMARK BRAINLIST
A basketball team allows people to buy either a ticket (T), or an signed autograph ticket (S). If two customers buy one ticket each, what is the sample space for this? Select all the choices that are included in the sample space.
SSS
TTT
TST
TT
ST
TS
TSS
T
SST
STS
S
TTS
STT
SS
An experiment's or random trial's sample space is the set of all conceivable outcomes or results. The sample space for the given situation is {CC, AC, CA, AA}.
What is a sample space?An experiment's or random trial's sample space is the set of all conceivable outcomes or results. Set notation is commonly used to represent a sample space, and the potential ordered outcomes, or sample points, are given as elements in the set.
For the given situation, Let Buying a classical ticket be represented by T, while buying an autograph event ticket is represented by S.
Therefore, The sample space for buying either a classic ticket T or an autograph event ticket S from the table = {TT, TS, ST, SS}.
Hence, the sample space for the given situation is {TT, TS, ST, SS}.
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1.5. a + b + c + d + e is this expression a monomial/ binomial/ trinomial/ polynomial
Answer:
polynomial
Step-by-step explanation:
because poly=more than 1
mono=1
bi= 2
tri=3
HELP IM STUCK ON THIS
Answer: Let's just say that each of the units are 1 inch in sides, and since it's an irregular shape you have to separate each shape. So, the rectangle I separated is 14 inches.
The semicircle is 12.56.
Adding those two answers together comes out to 26.56.
Tierra is making steps for a doll houseshe has cut a piece of wood that measures 1.5 centimeters wide and 30 centimeters longeach step will measure 15 millimeters by 4 millimetersshe will make 21 steps for her doll housewhich are the dimensions of the wood that remains after tierra finishes making the 21 steps?
The dimensions of the wood that remains after Tierra finishes making the 21 steps is 1.185 cm by 21.6 cm
How to determine the remaining dimensions?The given parameters are:
Wood = 1.5 cm by 30 cm
Each cut = .15 mm by 4 mm
Steps = 21
The remaining dimension is calculated as:
Remaining = 1.5 cm - 21 * .15 mm by 30 cm - 21 * 4 mm
Express mm as cm
Remaining = 1.5 cm - 21 * .015 cm by 30 cm - 21 * 0.4 cm
Evaluate the difference
Remaining = 1.185 cm by 21.6 cm
Hence, the dimensions of the wood that remains after Tierra finishes making the 21 steps is 1.185 cm by 21.6 cm
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Q1 write in words following the international and pakistani number system
A) 312695
B) 5469724
C) 4003240
Answer:
Step-by-step explanation:
a) International: Three hundred twelve thousand six hundred ninety five
Pakistani: Three lakh twelve thousand six hundred ninety five
b) International: Five Million four hundred sixty nine seven hundred twenty four
Pakistani: Fifty Four crore sixty nine thousand seven hundred twenty four
c) International: Four Million three thousand two hundred forty
Pakistani: Fourty Lakh three thousand two hundred forty
Hope it Helps! Mark its as brainiest
please answer lol i need some help
A pen was attached to a table by a small 10-inch chain. Jason lifted the pen, pulled the chain as far as it would reach, and then drew a circle as shown below.
The circumference of the circle that Jason drew is gotten as; 62.80 inches
How to find the circumference of a circle?Since Jason lifted the pen and pulled the chain as far as it would reach before drawing a circle, then it means that;
radius of circle; r = 10 inches
Formula for circumference is;
C = 2πr
Thus;
C = 2 * 3.14 * 10
C = 62.80 inches
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Whats is the answer with procedure. n=18, n=9 or n= 3
Answer:
n = 3
Step-by-step explanation:
Isosceles means that the left and right sides (non-parallel sides) are equal to each other and so the base angles are also equal to each other. Then you can make an equation with the 8n^2-11 set equal to the 2n^2+7.
see image.
To solve it you have to set everything equal to zero (get all terms on one side of the equation) FACTOR (you end up with the difference of two squares) and solve, using zero product property. See image.
