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Stells [14]
3 years ago
8

Please help me solve this for Algebra!

Mathematics
1 answer:
11111nata11111 [884]3 years ago
3 0

Answer:

D

Step-by-step explanation:

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Jennifer is saving money to buy a bike. The bike costs $223. She has "$128" saved, and each week she adds $19 to her savings.
castortr0y [4]

Answer: it would take her 5 weeks

You have to subtract 128 from 223 to find out how much money is left to earn. Which is 95. Then you must divide 95 divided by 19 because she get $19 each week and the answer is 5

4 0
3 years ago
Paper clips cost $2.20 per 1000. How much would I need to pay for 4,500
dem82 [27]

Answer:

2.20 per 1000 so it's gonna be $2.20/1000 per 1. So 4500 take $2.20/1000*4500=...

Step-by-step explanation:

8 0
3 years ago
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Complete the square:<br> x2 - 6x + 9=-13+ blank
kvasek [131]

Answer:

to complete the square, you add (b/2)^2  on both side. in this case, b is -6, half of -6 is -3, -3 squared is 9, so:

x^2-6x+9=-13+9

(x-3)^2=-4

This quadratic equation have unreal solutions

Step-by-step explanation:

5 0
3 years ago
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the equation P=2(L +w) can be used to find the perimeter P of a rectangle with length L and width W. Solve the equation for w to
Alenkasestr [34]
Hello, 

We know that if we make the same operation on both sides, we don't affect the equation:

For example:  
2=2 \\ 2\bold{+2}=2\bold{+2} \\ 4=4

Do you see? we add 2 on both sides and we don't affect the equality

We can do the same with the multiplication, for example

4=4   (i'll multiply both sides by 1/2) 
4*\bold{ \frac{1}{2}}=4*\bold{ \frac{1}{2}} \\ 2=2

Now, we do exactly the same in your excercise:

P=2(L+W) \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,[multiply\,\,by\,\,1/2] \\ \\ P*\bold{ \frac{1}{2}}=2(L+W)*\bold{ \frac{1}{2}} \\  \\ \frac{P}{2}=L+W\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,[Subtract\,\,L]\\  \\ \frac{P}{2}-\bold{L}=L+W-\bold{L}\\  \\ \frac{P}{2}-\bold{L}=L-\bold{L}+W \\  \\ \frac{P}{2}-L=W\\ \\ \boxed{ W= \frac{P}{2}-L }
3 0
3 years ago
Read 2 more answers
A rectangular board is 1300 millimeters long and 900 millimeters wide. What is the area of the board in square meters? Do not ro
alexdok [17]

1300 mm = 1.3 m

900 mm = 0.9 m

Area

1.3 * 0.9 = 1.17 m²

5 0
3 years ago
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