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3 years ago

15x - 10 = -9x + 2 please help me !!!!!

1 answer:

6 0

15x - 10 = -9x + 2

15x +9x -10 = -9x + 9x + 2

15 x + 9x - 10 + 10 = 2 + 10

15 x + 9 x = 2 + 10

24x = 12

24x/24 = 12/24

x = 1/2

hope this helps

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4 years ago

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Christine went shopping and bought each of her eight nephews a gift, either a video costing $14.95 or a CD costing $16.88. She s

VikaD [51]

Answer:

Step-by-step explanation:

Define number of videos purchased as "n" and number of CD's purchased as "c" then we can equation the total purchases and the costs by:

8 nephews:

n + c = 8

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Substitute one variable as a function of the other. Preference the simpler equation (n + c = 8)

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4 0

4 years ago

Find the volume of a square prymaid with a base of 9 ft and a height of 14 ft

Gnoma [55]

Answer:

Volume of the Square pyramid $=378.27 Feet^3$

Step-by-step explanation:

A Square pyramid is the pyramid whose base is in the shape of a Square.

Volume of a Square Pyramid:

$BASE*BASE*\frac{HEIGHT}{3}$

$Base= 9 feet$ and

$Height= 14 feet$

Volume of the square Pyramid:

= $9*9*\frac{14}{3}$

$=81*4.67$

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3 years ago