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andrezito [222]
3 years ago
8

Add: x5 - 4x + + 7x3 + 8, 9x 3 + 7x2 - 10, and -2x 5 + 7x4 - 3x + 8. ED

Mathematics
1 answer:
Wewaii [24]3 years ago
8 0

Step-by-step explanation:

x5 - 4x + 7x3 + 8 + 9x3 + 7x2 - 10 - 2x5 + 7x4 - 3x + 8

Arranging

x5 - 2x5 + 7x4 + 7x3 + 9x3 + 7x2 - 4x - 3x + 8 - 10 +8

-1 + 7x4 + 16x3 + 7x2 - 7x + 6

7x4 + 16x3 + 7x2 - 7x + 5

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iragen [17]

Answer:

When you fill in the blanks you get ($0.25*x)+(0.1*y)+(0.05*z). When you evaluate it you get $1.35, which is the total amount of change in her pocket.

Step-by-step explanation:

All of the numbers that are given in the equation are values of the coins (ex: a quarter is worth $0.25) and the variables are the different coins. Multiply the quantity of each coin (that's the variable) by its value then add them together. Finally, plug in the numbers it gives you for x, y, and z.

6 0
3 years ago
Solve for x. -3x + 6 = 2x - 24 A) -30 B) -6 C) 6 D) 30
Crazy boy [7]

The answer is C) 30.

Explanation:

-3x + 6 = 2x -24

6 + 24 = 2x + 3x

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6 0
3 years ago
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2 years ago
In ΔOPQ, m∠O = 107° and m∠P = 28°. Which statement about the sides of ΔOPQ must be true?
11Alexandr11 [23.1K]

Answer:

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Step-by-step explanation:

The third angle, angle Q, must measure 45° since angles in a triangle add to 180°.

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Michael's teacher bought a box of 124 crayons for the art class to share. The crayons cost $21.08 with tax included. What was th
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