2 years ago

Which statement is true?

Mathematics

2 answers:

melamori03 [73]2 years ago

5 0

Answer:

c ???

Step-by-step explanation:

labwork [276]2 years ago

5 0

The answer should be c

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-9 +m=20<br> answer asap please!!

grigory [225]

Answer:

Step-by-step explanation:

at 9 on both sides to get m alone

-9+m=20

+9. +9

m= 29

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2 years ago

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A 7th grade teacher at a local middle school wants to know which

jekas [21]

The answer is Option C) 7th graders in her school.

In order to ascertain the suitability of a candidate for any popular position, his popularity can be assessed by taking a survey of the concerned sample.

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2 years ago

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Identify the percent of change as an increase or a decrease 20 to 30.

Snowcat [4.5K]

Answer:

50% increase.

Step-by-step explanation:

(New Value - Initial Value)/(Initial Value) * 100 = percentage increase or decrease

(The formula)

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3 years ago

What value of x makes this equation true , use numerals instead of words.<br> -2x+3=-15

uysha [10]

Answer:

x = 9

Step-by-step explanation:

-2x + 3 = -15

-2x = -18

x = 9

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1 year ago

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4. Suppose that you have an enormous grapefruit that is 92% water (by weight). The grapefruit weights 100 pounds. If the water c

Anton [14]

Answer:

80 pounds.

Step-by-step explanation:

Let W₁ be the initial weight of water in the grapefruit, W₂ be the weight of water in the grapefruit after evaporation, and M be the total weight of the grapefruit after evaporation. Assuming that, originally, the grapefruit weighed 100 pounds with a 92% water content and the weight of the "non-water" part of the fruit (100 - W₁) does not change. The final weight of the grapefruit (M) is given by:

$W_1=0.92*100=92\\W_2=0.90*M\\W_2+(100-W_1) = M\\W_2=M-8\\(1-0.9)M=8\\M=80$

The grapefruit now weighs 80 pounds.

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2 years ago