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3 years ago

8

Shawna’s book report must have a minimum of 500 words. She counted the number of words she wrote already and realized she still

has to write at least 4 times as much as she has already written.

1 answer:

AlladinOne [14]3 years ago

4 0

500/4= 125
she has written 125 words and needs to write 375 more

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On a number line, the surface of a river is marked at −220 feet and the top of a building is marked at +19 feet, where 0 represe

nevsk [136]

Answer:

A

Step-by-step explanation:

0 is sea lvl so just add and subsubtract

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2 years ago

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Quadrilateral ABCD is similar to quadrilateral EFGH. Find the measure of side EF

garri49 [273]

Answer:

EF = 6.6

Step-by-step explanation:

Since ABCD is similar to EFGH, then EH is similar to AD. So, we can solve by first dividing 12 by 2 (EH by AD). The quotient of this is 6. This tells us that quadrilateral EFGH is 6 times larger than quadrilateral ABCD, since they are similar. So, with this and the measurement of AB (which is similar to EF), we can now solve for EF. We simply multiply 1.1 (the measurement of AB) by 6 (how many times larger EFGH is compared to ABCD). The product of this is 6.6, our final answer.

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3 years ago

. Simplify: (-4a+ b–2c) –(3a+ 2b–c)

Naily [24]

Answer:

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Step-by-step explanation:

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3 years ago

The area of circle B is 121 times greater than the area of circle A. The radius of circle B is 44. What is the radius of circle

xxMikexx [17]

<em>Formula:</em>
$\bigg( \dfrac{radius_1}{radius_2} \bigg)^2 = \dfrac{area_1}{area_2}$

<em>Plug in the values:</em>
$\bigg( \dfrac{r}{44} \bigg)^2 = \dfrac{1}{121}$

<em>Simplify LHS:</em>
$\dfrac{r^2}{1936} = \dfrac{1}{121}$

<em>Multiply by 1936 on both sides:</em>
$r^2 = \dfrac{1936}{121}
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<em>Simplify RHS:</em>
$r^2 = 16$

<em>Square root both sides:</em>
$r = 4$

Answer: The radius is 4 units. (Answer B)

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3 years ago

A 15 pound bag of ice costs $ 1.80. Give the unit rate.

Vaselesa [24]

We can use a rule of three simple, direct proportion to solve this problem.
15 pounds correspond to $1.80, then the question is to find the price of one pound, the called unit rate. We state the rule of three:
15 pound ----> $1.80
1 pound -----> x
x = (1)(1.80)/15
x = 0.12
Therefore, each pound costs $0.12 that is the unit rate in pounds

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3 years ago