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lidiya [134]
3 years ago
9

BRAINLIEST. NEED HELP NOW!!! What is the value of x?

Mathematics
1 answer:
Arturiano [62]3 years ago
3 0

Answer:

x=10

Step-by-step explanation:

these are similar triangles

8             12

------   = -----------

x+4          2x+1


using cross products

8* (2x+1) = 12(x+4)

distribute

16x + 8 = 12x+48

subtract 12x from each side

16x-12x +8 = 12x-12x+48

4x+8 = 48

subtract 8 from each side

4x+8-8 = 48-8

4x = 40

divide by 4

4x/4 = 40/x

x =10

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2 years ago
If profit is p% and cost price is C.P what will be the selling price?​
harkovskaia [24]

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7 0
2 years ago
I need this answered please
MA_775_DIABLO [31]

I hope this helps

3x-y=13

step 1: add y to both sides

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3 years ago
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5 0
2 years ago
An album sells for $12.00 through an online music service. If the album is 20% off, and sales tax is 5%, what is the total price
elena55 [62]

Answer:

Total price of the album including tax is $10.08

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Tax = 5/100 × 9.6 = $0.48

Total price of the album including tax = $9.6 + $0.48 = $10.08

4 0
3 years ago
Read 2 more answers
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