Answer:
Tony run 19.5 km last week, so he must have run 0.5 km more, to complete 20km run last week.
Step-by-step explanation:
Distance Tony ran last week are
6.25 km
4 km 750 m
872 km (Note: This would be 8 [tex]\frac{1}{2}[/tex] km and not 872 km)
We will add all the distances to check if they sum up to 20km or not.
First we will convert 4 km 750 m into km
We know that 1000 m = 1 km
So, 1 m = 1/1000 km
750 m = 750/1000 = 0.75 km
Now 4km + 0.75 km = 4.75 km
So, 4 km 750 m = 4.75 km
and 8 [tex]\frac{1}{2}[/tex] km = 8.5 km
Now, finding Distance covered by Tony during last week = 6.25 km + 4.75 km + 8.5 km
= 19.5 km
So, Tony run 19.5 km last week, so he must have run 0.5 km more, to complete 20km run last week.
WHOEVER ANSWERS FIRST GETS BRAINLIEST AND I NEED AN EXPLANATION PLZ
Answer:
1.15x
Step-by-step explanation:
In the given question below, the price of a toy wants to sell for 15% more than the original amount. 1.15x would work because you are multiplying 15% more while other equations would show a decrease in its price.
Translate the sentence into an equality
The quotient of y and 5 is at most 22.
Thanks!
Answer:
y/5 ≤ 22Step-by-step explanation:
The quotient of y and 5 is at most 22:
y/5 ≤ 22a proportional relationship is formed when y = 16 x = -4 what is the value of x when y =4
Step-by-step explanation:
if it is direct proportion
Y=KX
16=K×-4
16/-4 =k
K=-4
then
Y=KX
4= -4×X
X= 4/-4
X= -1
Someone please help me!
Answer:
No, triangle P'Q'R' is not a 180° rotation about the origin of triangle PQR.
I got "coordinates" for the first drop down menu and I believe "are not" is the 2nd drop down.
Step-by-step explanation:
If you turn your device 180° (Basically upside down), and take a look at triangle PQR, it will not be in the place of where triangle P'Q'R' is when your device is not rotated.
Please answer this question
Answer: 9
Step-by-step explanation:12 * 3/4
Answer: 9
Step-by-step explanation:
c and d would be out because it has to be less then 12 and then you do 75% of 12 which is 9
Please help me due soon please
Answer:
First one is quinton
second one is 900
Step-by-step explanation:
Answer:
Card #10: Quiesha is right
Card #6: Ulysses is right
Amir has $100 and is saving $5 per week to buy a new DVD player. Pete has $80 and is saving $7 per week to buy the same DVD player. Which system of equations can be used to find w, the number of weeks it would take for them to have m, the money needed to buy the DVD player
Answer: m= 100+5w
m= 80+7w
Step-by-step explanation:
Let w = number of weeks , m = Money required to buy DVD.
Total money = (Initial saving) + (Money saved per week) x (Number of weeks)
For Amir,
initial saving = $100 , Money saved per week = $5
So, m= 100+5w
For Pete,
initial saving = $80 , Money saved per week = $7
So, m= 80+7w
So, the required system of equations to find m and w:
m= 100+5w
m= 80+7w
Solve the following equation. show work. 3x^2 + -4x = 2
Answer:
[tex]x_{1[/tex]=-[tex]\sqrt{2}[/tex] , [tex]x_{2}[/tex]=[tex]\sqrt{2}[/tex]
Step-by-step explanation:
3[tex]x^{2}[/tex]-4=2
3[tex]x^{2}[/tex]=2+4
3[tex]x^{2}[/tex]=6 (divide both sides by 3)
[tex]x^{2}[/tex]=2 (simplify)
x=±[tex]\sqrt{2}[/tex]
Find the value of each expression. 42+6÷2
Answer:
45
Step-by-step explanation:
6/2 = 3
42+3 = 45
HURRYYYYYY!!!!!
Which expression is equivalent to 4(X+ 2)
O 6X
O 4()+4(2)
O 4(x)+4
8X
2) Solve for x in the following equation: 9x + 17 - 2x -2 = 50 *
Your answer
Answer:
5
Step-by-step explanation:
7x plus 15 is 50
7x=35
can i pls have brainliest
Answer:
x = 5
Step-by-step explanation:
9x + 17 - 2x - 2 = 50
9x - 2x - 2 = 33
9x - 2x = 35
7x = 35
x = 5
Find the value of x. Round to
the nearest tenth.
Answer:
[tex]\displaystyle x \approx 38.2 ^{\circ}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityPre-Calculus
Law of Sines: [tex]\displaystyle \frac{sin(A)}{a} =\frac{sin(B)}{b} =\frac{sin(C)}{c}[/tex]
A, B, C are angle measuresa, b, c are leg lengthsStep-by-step explanation:
Step 1: Identify
A = 27°, a = 11
B = x°, b = 15
Step 2: Solve for x
Substitute [LOS]: [tex]\displaystyle \frac{sin(27^{\circ})}{11} =\frac{sin(x^{\circ})}{15}[/tex]Cross-multiply: [tex]\displaystyle 11sin(x^{\circ}) = 15sin(27^{\circ})[/tex]Isolate x term: [tex]\displaystyle sin(x^{\circ}) = \frac{15sin(27^{\circ})}{11}[/tex]Isolate x: [tex]\displaystyle x = sin^{-1}(\frac{15sin(27)}{11})[/tex]Evaluate: [tex]\displaystyle x = 38.2488 ^{\circ}[/tex]Round: [tex]\displaystyle x \approx 38.2 ^{\circ}[/tex]Which graph represents y= 3^ x squared?
Answer:
see attachment
If you type your equation into desmos it helps a lot faster.
pplllzzz hellpppmeeeeeeeee
Answer:
21
Step-by-step explanation:
Given the radius (SV) = 10.5 cm, the diameter (RT) is 21 cm.
10.5(21) = 10.5(21)
The intersecting chords theorem or just The chord theorem is a statement in elementary geometry that describes a relation of the four line segments created by two intersecting chords within a circle. It states that the products of the lengths of the line segments on each chord are equal.
Brady needs to cut a piece of scrapbook paper
12 centimeters long. He cuts pieces of the following
lengths. Which cut results in a percent error of 15%?
Select all that apply.
Answer:
Option A and Option C
Step-by-step explanation:
If we know that we have to cut a peice of paper 12 centemiters long, that means a 15% error would be cutting out one of the following lengths....
12 - 12(0.15) = 10.2 cm
or
12 + 12(0.15) = 13.8cm
So from this, we see that the answers are Option A and Option C
factor 3x^2 + 10x +8
Step-by-step explanation:
3x²+10x+8 = 3x²+6x+4x+8
= 3x(x+2)+4(x+2)
= (3x+4)(x+2)
NEED HELP WITH ONE MORE QUESTION
Answer:
Part A= 315
Part B= Saturday and Sunday
Step-by-step explanation:
Jax has a weekly math test. His scores on the last 5 tests are 78,92,86,94,95. What score does he need to have an average of 90
Answer:
x = 95
Step-by-step explanation:
Given that,
Jax scores on the last 5 tests are 78,92,86,94,95.
We need to find the score he need to have an average of 90.
The formula for average of few number is given by :
Average = sum of observations/total no of observation
Let he score x in test 6. So,
[tex]90=\dfrac{78+92+86+94+95+x}{6}\\\\90=\dfrac{445+x}{6}\\\\540=445+x\\\\x=95[/tex]
So, he must score 95 in the next test so that its average is 90.
HELP ASAP I will mark brainliest
Answer:
slope is zero
Step-by-step explanation:
The line is horizontal and parallel to the x- axis
Since it is parallel to the x- axis its slope is zero
Which of the following could be a rational number? A.The sum of two irrational numbersB.The product of two irrational numbersC.The sum of rational number and an irrational numberD.The product of a rational number and an irrational number.
Marshall had d dogs that he put into 4 different areas.
Helpppppp meeee pleaseeee
Answer:
B
Step-by-step explanation:
Simplify. Write the answer as a decimal
10-4/10
need help.
Answer:
shoukd be 15
Step-by-step explanation:
Answer:
9.6
Step-by-step explanation:
10 - 4/10 = 9 6/10
9 6/10 = 15
Solve for the value of x
Answer:
i think is 12
Step-by-step explanation:
if sum 4x + 8 = 12x
u convert them youll get this
x = 12
using the elimination method, what is x and y ( please explain, I am still slightly confused)
x + 3y= -1
-2x - 3y=5
Answer:
(- 4, 1 )
Step-by-step explanation:
Given the 2 equations
x + 3y = - 1 → (1)
- 2x - 3y = 5 → (2)
Adding the 2 equations term by term will eliminate the y- term
- x + 0 = 4
- x = 4 ( multiply both sides by - 1 )
x = - 4
Substitute x = - 4 into either of the 2 equations and solve for y
Substituting into (1)
- 4 + 3y = - 1 ( add 4 to both sides )
3y = 3 ( divide both sides by 3 )
y = 1
solution is (- 4, 1 )
Mr. Montgomery has 228 rubber stamps. He wants to give the same number of stamps to each of his 9 students. If he gives away as many stamps as he can, how many stamps will be left over?
29-30. URGENT! WILL GIVE BRAINLIEST! I've reposted this many times and no one answered, please help. I will mark you Brainliest if you answer both and leave an explanation, THANK YOU!
Answer:
angle B = 90
Step-by-step explanation:
BC is a straight line which equals to 180 and C is 90 so you would take 180 minus 90 and would get 90
Can you guys figure this out please
34∙23= 64+3
Answer:
782
=
67
Step-by-step explanation:
adding and subtracting one step equations. A dividing board is 12.4 feet above the ground. The bottom of the pool is 16.9 feet below the ground. write and solve an equation that gives a distance from the diving board to the bottom of the pool.
Answer:
The distance is 29.3 feet
Step-by-step explanation:
Here, we want to find the distance from the diving board to the bottom of the pool
To get this, we will need to add the height of the diving board above the ground plus the distance of the bottom of the pool below the ground
Mathematically, we can have this as:
12.4 + 16.9
= 29.3 feet
Make
x
the subject of the formula
x
−
p
=
t
Answer:
x = t + p
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define
x - p = t
Step 2: Solve for x
Add p to both sides: x = t + p