2 years ago

Given that3x:8=7:2Calculate the value ofx.Give your answer in its simplest form

Mathematics

1 answer:

laila [671]2 years ago

5 0

The answer is 28/3, and in simplest form its 9 1/3

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Which of the following best explains the meaning of the equation?

Assoli18 [71]

Answer:

On a number line, negative five and positive five are the same distance from zero.

Step-by-step explanation:

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2 years ago

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The square root of a number is between 10 and 11. Which of these could be that number?

kaheart [24]

The answer would be 105, it's square root is approximately 10.2469

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2 years ago

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Zene deposited $50 in a savings account earning 5% interest, compounded annually. To thenearest cent, how much will he have in 3

JulsSmile [24]

Answer:

$\$57.88$

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=3\ years\\ P=\$50\\ r=5\%=5/100=0.05\\n=1$

substitute in the formula above

$A=50(1+\frac{0.05}{1})^{1*3}$

$A=50(1.05)^{3}$

$A=\$57.88$

6 0

3 years ago

Find the value of x such that the data set 31.7, 42.8, 26.4, and x has a mean of 35.

Travka [436]

Answer:

x = 39.1

Step-by-step explanation:

To find the mean, add up all the data points and then divide by the number of data points

(31.7+ 42.8+ 26.4+ x)/4 = 35

Multiply each side by 4

(31.7+ 42.8+ 26.4+ x)/4*4 = 35*4

(31.7+ 42.8+ 26.4+ x) = 140

Combine like terms

100.9+x = 140

Subtract 100.9 from each side

x = 140-100.9

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3 years ago

6(5m - 4) A. 30m - 4 B. 30m - 24 C. 30m + 24 D. 54m

mixas84 [53]

Answer:

6(5m-4)

=30m -24

option B

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3 years ago