MATHEMATICS MIDDLE SCHOOL

Evaluate the given algebraic expression for x = 7 and y = 3. 2x + 2y 10 20 23 15

Answers

Answer 1

Answer:

Answer: 20

Step-by-step explanation:

x = 7

y = 3

2x + 2y = 2(x + y)

2(7+3) = 2 • 10 = 20

Answer 2

Answer:

Answer:

Step-by-step explanation:

2(7) + 2(3)

14 + 6

Related Questions

Please Help! Math- Slope!
100 less than 37,972 give me the number
24+3x=3x+3(7-1) What does x equal? Please show me how to do it I don't want the answer. (Well I do but show me how to get it also pleaz) Lease help this is due tomorrow!
Write an equation for each description. a number increased by 10 is 114
Peter receives a $30000 salary for working as an engineer. If Peter spends 20% of his salary on expenses each year, then how much money does Peter have to spend on expenses?Identify the part, percent, and whole. Then solve with the formula

What value of x makes the equation true? –8.6 = –4.1 + x

A.
–12.7

B.
–4.5

C.
4.5

D.
12.7

Answers

B. -4.5

You need to isolate x by subtracting -4.1 and to keep the equation equal you need to do this on both sides.

The simple way would be to just try every single one, but I'm gonna tell you how to solve this stuff anyways. So basically, pretend x is a _________ (blank). You've probably done this hundreds of times in school before. Now, you can simply just do -8.6 minus -4.1, and you get the answer -4.5. Make sense? That would mean that it's B.

-4x+3y=-2

y=x-1

y=? x=?

Answers

Answer:

x=-1 , y=-2

Step-by-step explanation:

Replace y in the first equation with x-1.

So, we have -4x+3(x-1)=-2

Multiply brackets with 3: -4x+3x-3=-2

-4x+3x=-2+3 (-3 becomes +3 after it changes sides)

-x=1 /*(-1)

x=-1

After we have x we include it in y=x-1

y=-1-1

y=-2

What is the GCF for 26 48 and 62 plese help

Answers

It's 2, the only factors 26 has is 1,2,13, and 26. So it has to be 2 since none of the other factors relate to the other numbers.

All three numbers are even there for can all be divided by 2.
If you divide 26 by 2 you get 13
48 by 2 you get 24
and 62 by 2 you get 31
the GCF is 2

Help please also due tomorrow so thanks also it's question number 4

Answers

fin how much was taken out
9 750 ml
9 times 750=6750ml

he has an 8 liter jug
1 liter=1000ml
convert 8L to ml
8 times 1000=8000ml

full-takenout=remaining
8000-6750=1250ml remaining

answer is D

also 5 kilometers
1 kilometer=1000 meters
5 times 1000=5000meters

answers are
D 1250 ml
5000meters jogged

What is the angle of B. Round your answer to the nearest hundredth