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valina [46]
3 years ago
15

Which value of x makes the equation shown below true? 2 x + 7 = -10

Mathematics
2 answers:
alexandr402 [8]3 years ago
7 0
The answer to this problem is D!
stellarik [79]3 years ago
3 0

Answer:

-17 / 2

Step-by-step explanation:

First, find out what x is:

2x + 7 = -10

2x = -10 - 7

2x = -17

x = -17 / 2

I'm not sure if there's a mistake on the question, but if you plug in every number none of them work. Maybe try talking it out with your teacher!

If you plug in -34 you get -61 = -10.

If you plug in 34 you get 75 = -10.

If you plug in 6 you get 19 = -10.

If you plug in -6 you get 5 = -10.

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A bucket contains 40 red balls, 25 black balls, and 35 white balls. Two balls are drawn at random. What is the probability that
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Answer:

Probability = \frac{1}{5} or Probability = 0.2

Step-by-step explanation:

Given

Black = 25

White = 35

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Required

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First, we need to calculate the number of red and black balls

The probability is calculated as thus:

Probability = P(Black\ and \ Red) \ or\ P(Red\ and \ Black)

Convert to mathematical expressions

Probability = [P(Black) *P(Red)] + [P(Red) *P(Black)]

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