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exis [7]
3 years ago
6

Evaluate the algebraic expression 18 + (- 31) =

Mathematics
1 answer:
frosja888 [35]3 years ago
8 0

Answer:

-13

Step-by-step explanation:

You might be interested in
Please help me because I don't understand how to do it.:)
shutvik [7]

Answer:

y= 1/3 x +5

Step-by-step explanation:

To find the slope, we take two points

(0,5)   and (15,10)

The slope is found by the formula

m = (y2-y1)/ (x2-x1)

   = (10-5)/(15-0)

   = 5/15

   = 1/3

The slope is 1/3

The y intercept is found when x=0

When x=0  y=5

The slope intercept form of the line is

y=mx+b  where m is the slope and b is the y intercept

y= 1/3 x +5

3 0
3 years ago
For friends went to a restaurant in bought Two large pizzas and if each pay 5.25 how much was each pizza
guajiro [1.7K]

Answer:

$10.5

Step-by-step explanation:

4(5.25) = $21 (total amount of money spent)

we want to divide that by 2 because we want to find the cost of one pizza

21/2 = $10.5

8 0
3 years ago
Which is the value of i^20+1?
Nonamiya [84]

Answer:

Step-by-step explanation:

i^{20}+1=i^{2*10}+1\\\\(i^{2})^{10}+1=(-1)^{10}+1\\\\=1+1=2

8 0
3 years ago
A company conducted a survey to see whether its new toothpaste was morepopular with children or adults. Of the children surveyed
Naily [24]

Given: The information provided in the table shown

To Determine: From the options provided, the correct option that best describe the information given in the table

Solution

Given that 28% of the children used toothpaste. From the table

Children(toothpaste)=\frac{0.07}{0.25}=\frac{7}{25}\times100=28\%

Let us calculate the percentage of adult that used toothpaste

Adult(toothpaste)=\frac{0.08}{0.75}=\frac{8}{75}\times100=10.667\%\approx11\%

Hence, a smaller percentage of adults (about 11%) use the toothpaste.

The correct option is OPTION C

4 0
1 year ago
What is 90% of 20????
pickupchik [31]

Answer:

18

Step-by-step explanation:

Multiply 20 by 0.90 (that is 90%)

18 is the answer

Hope this helps :)

6 0
3 years ago
Read 2 more answers
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