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VLD [36.1K]
2 years ago
15

HELP!! Number 7! I need to know to write the equation and how to solve it! Thank you!

Mathematics
1 answer:
Anon25 [30]2 years ago
4 0

Answer:


Step-by-step explanation:

Move the decimal to the left once on both of them and time the numbers together

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This is correct? I need help please :(
Leto [7]

Answer:

well, we only no that

2l + 2w is 80

(lengths and widths on all 4 sides

and that w * l is A

so the function should be w times what's left for l, but also expressed by something with w

2l + 2w = 80 | -2w

2l = 80 -2w | devide by 2

l = 80 - w

now we can substitute l in

A = w * l

so that we only need w's

A(w) = w * (80-w)

for any w it will give us the area, makes only sense for 0<w<80

8 0
2 years ago
Read 2 more answers
Whats the answer for this problem 8x+y=-16 <br> -3x+y=-5
marissa [1.9K]
<span><span> {x,y} = {-7/4,-2}</span> 

Explanation:
</span>System of Linear Equations entered :
 [1] 8x+y=-16
 [2] -3+y=-5

Equations Simplified or Rearranged :<span><span> 
  [1] 8x + y = -16 </span><span> 
  [2] y = -2

Regards
Sonny
</span></span><span>
</span>
8 0
3 years ago
_____ compare one quantity to 100.
Alexxx [7]

Answer:

c

Step-by-step explanation:

6 0
3 years ago
Which of the following is equivalent to (-2/3) with a exponent of 3
Zinaida [17]

Answer:

( -8,27) I believe

Step-by-step explanation:

Because you times 2x2x2=8 and 3x3x3=27. Getting( -8,27)

Hope this helps :)

4 0
2 years ago
Please help me It’ll help a lot
Digiron [165]

Answer:

heyy

the answers "20"

Step-by-step explanation:

Okay using the x that we have we find 40 and plug that into the graph and we have 20 :p

7 0
2 years ago
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