2 years ago

PLS HELP ASAP SHOW EXPLANATION WILL GUVE BRAINLIEST

Mathematics

1 answer:

frutty [35]2 years ago

8 0

Answer:

Step-by-step explanation:

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Your answer is 8yd :)

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Danny’s 7 friends contributed an equal amount of money to buy him a birthday present. The present cost $84. How much money did e

dem82 [27]

84 divided by 7 equals 12

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Solve the equation<br> 3x/ 8 - 4x/3 =4

Virty [35]

Answer:

x = -96/23

Step-by-step explanation

$\frac{3x}{8}$ - $\frac{4x}{3}$ = 4

multiply each side of equation by 24 to eliminate denominators

(24) $\frac{3x}{8}$ - $\frac{4x}{3}$ = 4 (24)

3(3x) - 8(4x) = 96

9x - 32x = 96

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2 years ago

The Office of Student Services at a large western state university maintains information on the study habits of its full-time st

Rudiy27

Answer: The standard error of the mean = 0.5

Step-by-step explanation:

Given : Sample size : n = 144

Standard deviation : $\sigma=6\text{ hours}$

The formula to find the standard error of the mean is given by :-

$S.E.=\dfrac{\sigma}{\sqrt{n}}$

i.e. $S.E.=\dfrac{6}{\sqrt{144}}=0.5$

Hence, the standard error of the mean =0.5

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2 years ago

Jean works as a secretary for a local business. She is paid $10.50 per hour. She

PIT_PIT [208]

Answer:

$472.5

Step-by-step explanation:

10.5x

10.5 × 45= $472.5

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2 years ago