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Mila [183]
2 years ago
8

At the beginning of October, you have $300 in your bank account. You get $25 of allowance each week. Your cousin has $200 in her

bank account at the beginning of October and gets $30 of allowance each week. How many weeks will take for both you and your cousin to have to same amount of money in your bank accounts?
Mathematics
1 answer:
lys-0071 [83]2 years ago
6 0

Answer:

20 weeks to have the same amount for both bank accounts

Step-by-step explanation:

brainliest plss?

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A rectangular piece of metal is 25 in longer than it is wide. Squares with sides 5 in long are cut from the four corners and the
Licemer1 [7]

Answer:

The original length was 41 inches and the original width was 16 inches

Step-by-step explanation:

Let

x ----> the original length of the piece of​ metal

y ----> the original width of the piece of​ metal

we know that

When squares with sides 5 in long are cut from the four corners and the flaps are folded upward to form an open box

The dimensions of the box are

L=(x-10)\ in\\W=(y-10)\ in\\H=5\ in

The volume of the box is equal to

V=(x-10)(y-10)5

V=930\ in^3

so

930=(x-10)(y-10)5

simplify

186=(x-10)(y-10) -----> equation A

Remember that

The piece of metal is 25 in longer than it is wide

so

x=y+25 ----> equation B

substitute equation B in equation A

186=(y+25-10)(y-10)

solve for y

186=(y+15)(y-10)\\186=y^2-10y+15y-150\\y^2+5y-336=0

Solve the quadratic equation by graphing

using a graphing tool

The solution is y=16

see the attached figure

Find the value of x

x=16+25=41

therefore

The original length was 41 inches and the original width was 16 inches

3 0
3 years ago
How do I work this out ?
podryga [215]

Answer:

-4

Step-by-step explanation:

First, multiply

-12*2+8*2/-5-(-7)

= -8/-5-(-7)

Second do -5-(-7)

= -8/2

= -4

3 0
3 years ago
P(x)=2x 4 −x 3 +2x 2 −6P, left parenthesis, x, right parenthesis, equals, 2, x, start superscript, 4, end superscript, minus, x,
Tresset [83]

Answer:

P = -x^3 +12 / x+6

Step-by-step explanation:

Let's solve for p.

px=(2)(4)−x3+(2)(2)−6p

Step 1: Add 6p to both sides.

px+6p=−x3−6p+12+6p

px+6p=−x3+12

Step 2: Factor out variable p.

p(x+6)=−x3+12

Step 3: Divide both sides by x+6.p(x+6)

x+6

=

−x3+12

x+6

p=

−x3+12

x+6

5 0
2 years ago
A triangle has sides with the following lengths: AB=3, BC=4, CA=5
scoundrel [369]
Complete the question properly
3 0
3 years ago
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34kurt
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Step-by-step explanation:

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