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Inessa [10]
3 years ago
5

Help please ! solve for x and round the answer to the nearest tenth. need it asap , thank you

Mathematics
2 answers:
kirill115 [55]3 years ago
6 0

Answer:

5.2

Step-by-step explanation:

Note the equal sign. This means that these two fractions are proportional. First, find common denominators. Note that what you do to the denominator, you do to the numerator:

4 * 13 * (\frac{17}{13}) = (\frac{x}{4})  * 4 * 13\\\\4 * 17 = x * 13\\\\68 = x * 13

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Divide 13 from both sides:

68 = x * 13\\\\(68)/13 = (x * 13)/13\\x = 68/13\\x = 5.2(rounded to the nearest tenth).

5.2 is your answer.

~

Jlenok [28]3 years ago
3 0

Answer:

5.2

Step-by-step explanation:

\frac{17}{13}  = \frac{x}{4}

To solve for x, we want to isolate x. To do this, we need to multiply both sides by 4.

(\frac{4}{1})(\frac{17}{13})  = x

Multiply the numerators and the denominators separately.

4 • 17 = 68

1 • 13 = 13

\frac{68}{13}  = x

Divide.

68 ÷ 13 = 5.23

Round to the nearest tenth.

5.2

Hope this helps!

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Buck rented a truck for $39.95 plus $0.32 per mile. Before returning the truck, he Filled the tank with gasoline, which cost $9.
wel

Answer:

Step-by-step explanation:

Let x represent the distance that the truck was driven.

Buck rented a truck for $39.95 plus $0.32 per mile. This means that the total cost of driving x miles with the truck would be

39.95 + 0.32x

Before returning the truck, he Filled the tank with gasoline, which cost $9.85. This means that the total amount that he spent is

39.95 + 0.32x + 9.85

If the total cost was $70.23, it means that

39.95 + 0.32x + 9.85 = 70.23

49.8 + 0.32x = 70.23

0.32x = 70.23 - 49.8 = 20.43

x = 20.43/0.32 = 63.8

Approximately 64 miles

5 0
3 years ago
How do I solve this?
Mama L [17]

Answer:

It's B

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Step-by-step explanation:

5 0
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Write an equation for the graph.
valentinak56 [21]

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Step-by-step explanation:

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7 0
3 years ago
The length of a rectangle is 7 more than twice the width x . The area is . 372
Bad White [126]

Answer:

x (7+2x) = 372,

where 372 is the are of this rectangle, and x is its width.

Step-by-step explanation:

The width of this rectangle is x. Twice that width will be equal to 2x.

The length of this rectangle is seven more than twice the width of this rectangle, or seven more than 2x. The length of this rectangle will thus equal to 7 + 2x.

The area of a rectangle is equal to the product of its width and its length. The width of this rectangle times its length will be equal to x(7+2x).

For this rectangle, this area is equal to 372. In other words,

x(7 + 2x) = 372.

This equation about x represents the relationship between the width, length, and the area of this rectangle.

8 0
3 years ago
Write each decimal as a fraction 0.64=
ipn [44]
0.64

this has to do with place value.....what place value is ur last digit (6) in ? It is in the hundredths place. so we put the 64 (without the decimal) over 100.
64/100 which reduces to 16/25. Its that simple.

Examples :
0.5....the last digit (5) is in the tenths place...so put it over 10.
5/10 reduces to 1/2.

0.225...the last digit (5) is in the thousandths place. 225/1000 reduces to
9/40
4 0
3 years ago
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