SOMEBODY PLEASE HELP ME!!!!!!!
Solve each system of equations
-3x + 3y =4
-x + y =3
I don't get it please help and show me how to do it
Answer:
Step-by-step explanation:
You plug in the given values and compute s:
s = ut + 1/2 at^2
s = 10*1/2 + 1/2*-2*(1/2)^2
= 5 + -1*1/4
= 4 3/4.
The temperature at 10:00 a.m was -3 and increased 2.25 each hour for the next 5 hours.What was the temperature at 3:00pm?
9514 1404 393
Answer:
8.25°
Step-by-step explanation:
The increase over 5 hours was ...
(5 h) × (2.25 °/h) = 11.25°
When that is added to the starting value, the ending value is ...
-3° +11.25° = 8.25°
The temperature at 3:00 pm was 8.25°.
Select yes or no for each literal equation.
Answer:
No, Yes, Yes
Step-by-step explanation:
[tex]5x + 2y = 3[/tex]
2y = 3 - 5x
y = (3-5x) / 2
FALSE
[tex] \frac{w + 8}{2} = p[/tex]
2P = w + 8
w = 2P - 8
TRUE
[tex]ax + by = c[/tex]
by = c - ax
y = (c - ax) / b
TRUE
A sequence is defined recursively by
a1=4
an=34an−1
What is the explicit form of this sequence?
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Answer:
an = 4×34^(n-1)
Step-by-step explanation:
If your recursive definition is ...
[tex]\begin{cases}a_1=4\\a_{n}=34a_{n-1}\end{cases}[/tex]
this defines a geometric sequence with a first term a1 = 4 and a common ratio of r = 34. The general form of the explicit function is ...
[tex]a_n=a_1\times r^{n-1}[/tex]
For the values shown here, the explicit definition of the sequence is ...
[tex]\boxed{a_n=4\times 34^{n-1}}[/tex]
welp. this is 9marks question
Answer:
4
Step-by-step
If the sales tax rate is 8.9%, how much tax will be paid on a $457 tv?
State your answer in terms of dollars, rounded to the nearest cent (hundredth).
Do not include a $ sign with your response.
what is the mean of 22, 24, 28, 19, 27
Answer:
Mean = 24
Step-by-step explanation:
Mean = (Sum of Terms) ÷ (Total numbers of Terms)
Mean = (22 + 24 + 28 + 19 + 27) ÷ 5
Mean = 120 ÷ 5
Mean = 24
What is the slope of this line? Enter your answer as a whole number or a fraction in simplest form in the box.
To find the slope, we will use the slope formula and two points that are on the line. You can choose any two points as long as they are on the line.
Point 1 = (0, -2)
Point 2 = (-2, 0)
Slope-Formula: (y2 - y1) / (x2 - x1)
Now that we know our two points and the slope formula, all that's left to do is plug the points into the formula and simplify.
(0 - - 2) / (-2 - 0)
(2) / (-2)
-1
The slope of the line is -1.
Hope this helps!! :)
Answer: -1
Step-by-step explanation:
-6/6= -1
Your friend is absent from class and asks you to explain what a function is how would you explain
Answer: A function is the equation used to solve a variable, usually uses X and Y.
i.e. Y = 23x -9
The prize of a television was reduced from $250 to $200.
By, what percentage was the price of the telivision
reduced?
F 20%
G 25%
H 80%
J 50%
Answer: F 20%
Step-by-step explanation:
50 is 20% of 250
Help I have a C in math. I don't understand this Alegbra. If you get it right then I will give you Brainlist!
URGENT HELP I NEED THE ANSWERS TO THIS WORKSHEET
Answer:
As follows,
Step-by-step explanation:
The sum of the angles of any triangle is 180.
∠U=69
∠D=42
∠E=35
∠F=35
∠G=55
∠H=45
∠I=45
∠J=15
∠M=120
∠K=15
∠L=75
∠Q=55
∠R=55
∠S=42
∠T=42
∠P=21
∠O=69
∠N=21
∠A=60
∠B=60
∠C=60
Aashi buys
2 packets of bread rolls costing £1.40 for each packet
1 bottle of ketchup costing £1.80
3 packets of sausages
Aashi pays with a £10 note.
She gets 45p change.
Work out the price in pounds (£) of one pack of sausages.
(you will get brainliest) !! :D
Price of one unit Sausage = 1.65
Sum ( Price x Quantity) = Total Expenditure
Price of Bread x Quantity of Bread + Price of Ketchup x Quantity of Ketchup + Price of Sausage x Quantity of Sausage
Total Expenditure Value = 10 - 0.45 = 9.55
Let price of sausage = P
Therefore, 2 (1.40) + 1 (1.80) + 3 P = 9.55
2.80 + 1.80 + 3 Ps = 9.55
4.6 + 3 P = 9.55
3P = 9.55 - 4.60 = 4.95
P = 4.95 / 3 = 1.65
To learn more, refer https://brainly.com/question/16910784?referrer=searchResults
HELLO I NEED A MATH EXPERT RIGHT NOW TO HELP ME WITH SOME MATH STUFF
IF YOUR NOT A MATH EXPERT THEN DONT ANSWER
Answer:
what's your question
Step-by-step explanation:
what's your question
ANSWER
7y-20=3y+12
= 7y-20+20= 3y + 12 + 20
= 7y = 3y + 32
= 7y -3y = 3y + 32 - 3y
= 4y = 3y + 32 -3y
= 4y =32
= y = 32/4
= y = 8
Thank you :).....
Ratio from boys to girls is 2:3. There are 300 fatal kids in the school. How many boys are in the school?
Answer:
180
Step-by-step explanation:
2:3 = 300
2x +3x = 300
5x = 300
x = 300/5
x= 60
2X60= 120 (girls)
3X60= 180 (boys)
if u want to to check whether the ans is correct then try adding your outcomes 120+180 that is = 300 . so the correct ans is 180.
katryn owes her father $25.write this number as an integer.
Answer:
-25
Step-by-step explanation:
When you owe someone something, in integers, your answer is in the negative.
What is the ratio of vowels to consonants?
MATHEMATICS
Answer:
3 to 10
Step-by-step explanation:
Vowels are a, e, i, o, u, sometimes y
Vowels + consonant = Total letters
6 + consonant = 26
vowels to consonants = 6 to 20 = 3 to 10
Alonso is buying a new phone for $ 870
on the installment plan. He must put
down 15% and pay monthly payments
for one year. How much is each monthly
payment?
A.$13.05
B.$83.38
C. $61.63
D. $10.77
Answer:
A
Step-by-step explanation:
1. Get 15% of 870:
First, get 10 percent of 870, which is 87, then half that, which is 43.5
Get the 87 and add the 43.5 on it, to get the full 15%, you end up with $130.5, which is the monthly payment.
(Only problem is that im pretty sure you put an extra 0, because if you just wrote 87 dollar's then you would've got 13.05, the actual answer, but if you add an extra 0 then you end up with 130$, just to let you know.)
17) A golfer made par on 13 of 18 holes. Rounded to the nearest tenth
on what percent of the holes did he make par? *
16%
25.3%
72.2%
73%
Answer:
72.2
Step-by-step explanation:
13/18
Determine if the sequence is arithmetic 7,9,11,13,15…
If so, find the common difference
b. What would be a30
Answer:
65
Step-by-step explanation:
a. since we add 2 to each term in this sequence, the difference between one term and the next is a constant. therefore, it's an arithmetic sequence
b. in this case, a = 7 and d =2
the equation would be a30 = 7 + (30-1)2
solving this gives us 65
Write the equation in function form:
8x + 4y = 20
c. The double shadedregion represents
of the whole.
Step-by-step explanation:
please the information needed is up the paper. you took a picture of no. 2 instead of no. 1
What is the place value of the 1 in the number 6.213
Answer:
The hundredths place
Expanation
6 is in the one's place
2 is in the theth's place
1 is in the hundredth's place
3 is in the thousandth's place
how do i solve this step by step? i dont know how to set up this equation.
Answer:
Step-by-step explanation:
The two long sides on the left and right and bisected into two equal parts each
That means that since there is an angle in common to the top little triangle and the whole diagram, the little triangle on top and the whole triangle are similar.
The ratio of similarity is 1/2
10/(5x + 5) = 1/2 Cross multiply
(5x + 5)*1 = 10*2
5x + 5 = 20 Subtract 5 from both sides
5x = 20 - 5 Combine
5x = 15 Divide by 5
5x/5 = 15/5
x = 3
Which of the following are not polynomials?
Answer:
A, B, D
Step-by-step explanation:
A polynomial is a 1 term or a sum of terms.
Each term is a number multiplied by 0 or more variables.
A term can never have a variable in the denominator or in any root. A term cannot have the logarithm of a variable or any trig function of a variable.
Answer: A, B, D
help pls. i’ll give brainliest
Answer:
last 2 I think
Step-by-step explanation:
okokokokokipullup
A bus travels 324 km in 8 hours. How long will it take to travel 243 km ?
Answer:
Six hours
Step-by-step explanation:
Answer:
6 hours
Step-by-step explanation:
Use a ratio and cross multiply to solve for x
324 243
------ = -------
8 x
324x = (8)(243)
324x = 1944
x = 6
Select the correct answer.
One of the factors of the polynomial x2 + 5x + 6x is (x2 + 3x). What is the other factor?
AX-2
B. X+ 2
C. X+ 1
D. X-1
Answer:
I think it is B it is my guss
3) A local meteorologist measured the rain during a storm and recorded it on a graph. At what
rate did the rain fall?
50 POINTS PLEASE HELP ASAP THANK YOU
Answer:
The rain fell at 2cm per hour
Answer:
A) 2 cm per hourStep-by-step explanation:
Use two ordered pairs from the graph to find the rate of change:
(0, 0), (1, 2)m = 2/1 = 2Correct choice is A