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Zolol [24]
3 years ago
10

7а — За +2а — а = 16

Mathematics
1 answer:
dezoksy [38]3 years ago
8 0

Answer:

(7a-3a)+(2a-a)=16

4a+a or 1a =16

5a=16

5a/5=16/5

a =16/5 or a=3.2

Step-by-step explanation:

solving like terms or substract are same

you only have to find value of uknown value which was "a" question

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Pls help ASAP need help pls
AlexFokin [52]

Answer:

1.625

Step-by-step explanation:

First we need to find the mean of this data set

29+32+33+28+30+30+29+33=244

Then we divide 244 by the amount of numbers in the set

244/8=30.5

Then we need to find the deviation of each number

29 | 32 | 33 | 28 | 30 | 30 | 29 | 33

1.5 | 1.5 | 2.5 | 2.5 | 0.5 | 0.5 | 1.5 | 2.5

Then we take the mean from this set of data

1.5+1.5+2.5+2.5+0.5+0.5+1.5+2.5=13

Then divide

13/8=1.625

I hope this helps :)

4 0
3 years ago
Read 2 more answers
A number is increased by 50% and then another 25%. By how much is it increased in total?
blsea [12.9K]

Answer:

87.5 percent

Step-by-step explanation:

when you have to increase a number by 50 percent you are multiplying it by 1.5

later when you increase the number by 25 percent you multiply it by 1.25

you can multiply 1.5 by 1.25 to get your answer

1.5 * 1.25 is 1.875

so the percent increase is 87.5 percent

3 0
2 years ago
Find the y-intercept of the parabola y = x2 + 6x.<br><br> Can somebody help?
WINSTONCH [101]

Given:

The equation of the parabola is:

y=x^2+6x

To find:

The y-intercept of the parabola.

Solution:

We have,

y=x^2+6x

Putting x=0 in the given equation, we get

y=(0)^2+6(0)

y=0+0

y=0

Therefore, the y-intercept of the parabola is 0. It means the y-intercept of the given parabola is at point (0,0).

6 0
3 years ago
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S_A_V [24]
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The ordered pair not in the new set of vertices is (2, -2).
7 0
3 years ago
How to simply this equation
Eddi Din [679]

Answer:

\sqrt[3]{2}

Step-by-step explanation:

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8 0
3 years ago
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