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babymother [125]

3 years ago

11

At the last basketball game, 12 out of the first 48 people who entered the stands were wearing a coat. If this sample is represe

ntative of the 200 people attending the game, about how many would you expect to be wearing a coat?
Question 10 options:

A. 70

B. 40

C. 50

D. 60

1 answer:

olganol [36]3 years ago

4 0

The answer to this question is C. 50

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Use synthetic division to determine f(-2) for the function f (x) = 9x^3 - 18x^2 - 16x + 32

evablogger [386]

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Step-by-step explanation:

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3 years ago

The total length of wires a b and c is 445 cm wire a is 45 cm longer then wire b and wire b is half as long as wire c how long i

Oksana_A [137]

Answer:

$a = 145\ cm$

Step-by-step explanation:

Given

$a + b + c = 445$

$a = 45 + b$

$b = \frac{1}{2}c$

Required

Determine the length of a

Solve for c in $b = \frac{1}{2}c$

$2 * b = \frac{1}{2}c * 2$

$2b = c$

$c = 2b$

Substitute $c = 2b$ and $a = 45 + b$ in $a + b + c = 445$

$a + b + c = 445$

$45 + b + b + 2b = 445$

$45 + 4b = 445$

Solve for 4b

$4b = 445 - 45$

$4b = 400$

Solve for b

$b = 400/4$

$b = 100$

Recall that: $a = 45 + b$

$a=45+100$

$a = 145\ cm$

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The answer for this question is Grade 7 I believe.

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2 years ago

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Alja [10]

$2\frac{3}{4}*2=\frac{2*4+3}{4}*2=\frac{11}{4}*2=\frac{22}{4}= 5\frac{2}{4}=5\frac{1}{2}$

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