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Lady_Fox [76]
3 years ago
5

1. 8 - n = -4

Mathematics
1 answer:
iogann1982 [59]3 years ago
4 0

Answer:

1.-n=-12; n=12

2.18=-2x; x=-9

3.-n=-12; n=12

4.b=3


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What is 20 increased 30%.
Reptile [31]
<span>When 20 is increased by 30% of itself 

</span><span>When 20 is added to by (30% OF 20)
</span><span>
20 + (30% x 20)

</span><span>20 + (0.3 x 20) 
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20 + (6) 

</span>26
5 0
3 years ago
Find the value of the expression 9.16 + k for k = 9.
maria [59]

Answer:

18.16

Step-by-step explanation:

6 0
3 years ago
The number 40 can be written as the product of a prime factor like 40=2×2×2×5 . Write the number 100 as a product of its prime f
Vladimir79 [104]

Answer

The answer to your question is  2 x 2 x 5 x 5 or 2² 5²

Step-by-step explanation:

Process

1.- To find the prime factors of a number, we must divide the number by prime numbers like 2, 3, 5, 7, 11, etc. starting from the lowest number.

                         100     2

                           50     2

                           25     5

                             5      5

                              1

Then  100 = 2 x 2 x 5 x 5 or 2² 5²

                 

5 0
3 years ago
In Ms. Dole's class, students received grades of 87, 72, 99, 93, and 84 on yesterday's quiz. What was the mean of the quiz grade
Naddika [18.5K]
Hello!

The mean is the average of the numbers

To find the average you add them all up and divide the sum by the amount of numbers added

87 + 72 + 99 + 93 + 84 = 435

Divide the sum by the amount of numbers added

435 / 5 = 87

The answer is 87

Hope this helps!
4 0
4 years ago
Read 2 more answers
What is the annual interest rate is 1=$160.67, p=$2000, t=8 months
Sergeeva-Olga [200]
Please use " i " to denote "interest."

the formula for simple interest is i = p r t.

Here, i = $160.67 = $2000 (r) (8/12)


Solving for the interest rate, r = ($169.67)(12/8)/ $2000 = 0.127, or 12.7%
4 0
3 years ago
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