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podryga [215]
3 years ago
8

Find the value of 3v- 10 given that 2v- 7 = 9

Mathematics
2 answers:
marishachu [46]3 years ago
7 0

Answer:

14

Step-by-step explanation:

2v - 7 = 9

Add 7 to both sides

2v = 16

Divide both sides by 2

v = 8

Plug it into 3v - 10

3v - 10 =

3(8) - 10 =

24 - 10 =

14

nydimaria [60]3 years ago
4 0

Answer:

14

Step-by-step explanation:

2v-7=9

2v=16

v=8

3(8)-10=14

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Answer:

2

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the x and y are being multiplied by 2 e.g. 1 × 2 is 2 and 2 × 2 is 4 so the constant is 2

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Dr. Ashby is studying the heart rate of adult men. Preliminary data suggests that the standard deviation of heart rates for adul
jok3333 [9.3K]

Answer:

n=42 adult men

Step-by-step explanation:

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n\geq( \frac{z\sigma}{E})^2

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3 years ago
V = 1/3 bh for b the base of the cone
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Answer:

\huge\boxed{b=\dfrac{3V}{h}}

Step-by-step explanation:

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Part B:
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Articles of clothing that the store received last Thursday is 84

<u>Solution:</u>

Given that  

A clothing donation store received numerous articles of clothing on Thursday of last week.

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4 (3x − 1) − 2 (6 + 2x)

Need to calculate articles of clothing that the store received last Thursday when x = 12.5

As on Thursday x = 12.5, need to substitute x = 12.5 in above equation to get number of articles received on Thursday.

On substituting x = 12.5, we get

4 ( (3 x 12.5 ) – 1 ) – 2 ( 6 + ( 2 x 12.5 ) )

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On substituting x = 12.5 , we are getting value of expression as 84.

Hence articles of clothing that the store received last Thursday is 84

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