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Aleks04 [339]
3 years ago
12

What is 9 - 4 (- a + 9) + 3(7 - 2a)

Mathematics
2 answers:
Katen [24]3 years ago
7 0
-2a - 6

Hope I helped!

~ Zoe
zzz [600]3 years ago
7 0
9-4(-a+9)+3(7-2a)=
9+4a-36+21-6a=
-6-2a=0
-2a=6
a=-3
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Ozzie put 14gal of gas in his truck. Convert the volume to liters. Use 1qt=0.95L. Do not round your answer.
Savatey [412]

Answer: 53.2\ L

Step-by-step explanation:

You know that Ozzie put 4 gallons of gas in his truck.

Notice the you must use:

1\ quart=\ 0.95\ liters

Then, the first step is to make the conversion from gallons to quarts.

Since:

1\ gal=4\ qt

You get:

(14\ gal)(\frac{4\ qt}{1\ gal})=56\ qt

Finally, knowing the volume in quarts, you can make the conversion from quarts to liters. This is:

(56\ qt)(\frac{0.95\ L}{1\ qt})=53.2\ L

Therefore, Ozzie put 53.2 liters of gas in his truck.

3 0
4 years ago
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A coach surveyed a random sample of 200 college athletes about their height.
JulijaS [17]

Answer:

i. A bar graph is an appropriate display.

ii. A bar graph is appropriate because the frequencies are given.

Step-by-step explanation:

A bar graph is a graphical method that can be used to present an information from a sample of data. It requires drawing of bars of equal width and distance with respect to the information given.

While a pie chart is a method that requires presenting information in a circular chart with respect to each data in sectors of different central angles.

For the given question, the most appropriate method to use is the bar graph with respect to the given information. Thus, the statements that are correct about the data in the table are:

i. A bar graph is an appropriate display.

ii. A bar graph is appropriate because the frequencies are given.

4 0
3 years ago
Five times a certain number plus 5 is 45​
ruslelena [56]

Answer:

8

Step-by-step explanation:

8x5=40 + 5 = 45

That's the answer

8 0
3 years ago
Match each expression to the correct point
ziro4ka [17]

Using number line and mental mathematics, the value of u = -√25, t = - 2π, s = -√68

<h3>What is a number line?</h3>

A horizontal line with evenly spaced numerical increments is referred to as a number line. How the number on the line can be answered depends on the numbers present.

The usage of the number is determined by the question that it corresponds to, such as when graphing a point.

As we can observe that

All the points lie on negative axis. The value of u = -√25 = 5

t = -2π = -2×3.14 = -6.28

s = -√68 = - 8.24

To learn more about number line from given link

brainly.com/question/22667895

#SPJ9

3 0
1 year ago
______% of 200 miles is 150 miles.
Genrish500 [490]

Answer:

75%

Step-by-step explanation:

150/200 × 100 =75

6 0
3 years ago
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