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4 years ago

7

Factor out the coefficient of the variable 1/3b-1/3

1 answer:

Darya [45]4 years ago

8 0

The variable is b, the coefinet is 1/3

remember
ab-ac=a(b-c)
1/3b-1/3=1/3(b-1)
there, factored

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3 years ago

1/5x-2/3y=30 when y=15

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Answer:

Step-by-step explanation:

<u>Step 1: Set y to 15 and solve</u>

<u /> $\frac{1}{5}x - \frac{2}{3}*15=30$

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3 years ago

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3 years ago

Read 2 more answers

The figures below are rectangles. Which polynomial represents the area of the shaded region? HAVE ALL MY POINTS but answer truth

Aleks04 [339]

Answer:

$7x - 1$

Step-by-step explanation:

Area of the shaded region = area of the large rectangular - area of the small rectangle

Area of rectangle is given as l*w

Area of the large rectangle = $l*w = (x + 5)(x - 1)$

Expand

$= x(x - 1) +5(x - 1)$

$= x^2 - x + 5x - 5$

Area of large rectangle $= x^2 + 4x - 5$

Area of small rectangle = $l*w = (x + 1)(x - 4)$

$= x(x - 4) +1(x - 4)$

$= x^2 - 4x + x - 4$

Area of small rectangle = $= x^2 - 3x - 4$

Area of shaded region = $(x^2 + 4x - 5) - (x^2 - 3x - 4)$

$= x^2 + 4x - 5 - x^2 + 3x + 4$

Collect like terms

$= x^2 - x^2 + 4x + 3x - 5 + 4$

$= 7x - 1$

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3 years ago