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2 years ago

(these are the rest) May i get more help please :( thank you :)

Mathematics

1 answer:

joja [24]2 years ago

3 0

Answer:

7. a = 1,075 sq ft

8. 128 sq ft

9. a = 80 in

10. $28

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Ber [7]

the answer to your equation is

n=40

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3 years ago

What is the solution to Negative 1 minus 7?

Anni [7]

Answer:

in confused on what the question is asking is it multiple questions

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3 years ago

What's the answer for <br> W-y=3w-10

balu736 [363]

Answer:

Step-by-step explanation:

if solving for y

solve for y by simplifying both sides of equation, then isolating the variable.

y=-3w+10+W

if solving for W

W=3w-10+y

if solving for w

w=W/3 - y/3 + 10/3

6 0

3 years ago

How to scientific notation to express the number 480 into 1 scientific notaion?

AfilCa [17]

Consider the number 480 in expanded form:

... 480 = 4×100 + 8×10

The left-most digit and multiplier are those that correspond to the ones you use in scientific notation.. You recall that 100 = 10×10 = 10². All this means is that

... 480 = 4.8×10²

5 0

3 years ago

Which one is it A. B. C. or D.

nadya68 [22]

7x + 2y = 2
2x - y = 10

2y = - 7x + 2
- y = - 2x + 10

2y = -7x + 2
y = 2x - 10

$y=\frac{-7x+2}{2}$
y= 2x - 10

y = -3.5x + 1
y = 2x - 10

Now, let's find "x" first by doing a substituion !

2x - 10 = - 3.5x + 1
y = 2x - 10

2x + 3.5x = 1 + 10
y = 2x - 10

5.5x = 11
y= 2x - 10

$x = \frac{11}{5.5}=2$
y= 2*2 - 10 = 4 - 10 = -6

In short, the answer would be : y = -6 (Option B).

Hope this helps !

Photon

8 0

3 years ago