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3 years ago

7

Which of these operations should br completed first when solving an equation?

1 answer:

Sever21 [200]3 years ago

6 0

Answer:

Divide

Step-by-step explanation:

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If a: b= 3:4 then find the value of<br>(6a-3b :(5a + 2b)

KengaRu [80]

Answer:

6 : 23

Step-by-step explanation:

$a : b = 3 : 4 ....(given)\\ \\ let \: a = 3x \\ b = 4x \\ \\ (6a - 3b) : (5a + 2b) \\ \\ = \frac{(6a - 3b)}{(5a + 2b)} \\ \\ = \frac{6(3x) - 3(4x)}{5(3x) + 2(4x)} \\ \\ = \frac{18x- 12x}{15x+ 8x} \\ \\ = \frac{6x}{23x} \\ \\ = \frac{6}{23} \\ \\ (6a - 3b) : (5a + 2b) = 6 : 23$

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2 years ago

Solve for x. (16x + 23)°

erma4kov [3.2K]

16x +23
-16 -16
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2 years ago

A firm produces 19,200 units at a total cost of $67,585.06. Find the cost per unit to the nearest cent.

xz_007 [3.2K]

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3 years ago

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Setler [38]

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3 years ago

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Five minus two times y equals fourteen

podryga [215]

Answer:

$y=-\frac{9}{2}$

Step-by-step explanation:

Solve by isolating the variable on one side of the equation:

$5-2*y=14$

Simplify $-2*y$ to $-2y$ :

$5-2y=14$

Subtract 5 from both sides:

$-2y=9$

Divide both sides by -2:

$y=-\frac{9}{2}$

6 0

3 years ago