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Dvinal [7]
3 years ago
9

Kelly bought a book of 20 stamps. She has used 80% of them. A. How many stamps has Kelly used? B. How many stamps does she have

left?
Mathematics
2 answers:
ser-zykov [4K]3 years ago
8 0
Hello there the answer is 110
jok3333 [9.3K]3 years ago
4 0
80% of 20 is 80/100 x 20 = 16

So, kelly has used 16 stamps, and has 4 left
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Please help ASAP
makkiz [27]

Answer:

Option A.

Step-by-step explanation:

According to this survey results :

Students : 80 like viking and 20 like patriot.

Teachers : 5 like viking and 15 like patriot.

In Option B it is given that patriot is more popular in students while viking is more popular in teachers which is not correct.

In option c patriot is equally popular in students and teachers, which is also not correct. because patriot is popular in 20% of students but 80% in teachers, which is not correct.

In option d there is no difference between students and teachers, this statement is also not correct because there is lots of differences in their choices.

In Option A it is said that viking is more popular in students but patriot is more popular in teachers. this is correct.

5 0
3 years ago
Read 2 more answers
(18 POINTS) SHOW WORK!!!
Lady bird [3.3K]
Tan(58)=10/x
x=10/tan(58)
x= 6.2
3 0
3 years ago
Read 2 more answers
Solve 5x-y=5 and 2y-x^2=11 without using trial improvement
iren2701 [21]

Answer:

x = 7, y = 30  and  x = 3, y = 10

Step-by-step explanation:

5x - y = 5, then y = 5x - 5

2y - x^2 = 11

2(5x - 5) - x^2 = 11

10x - 10 - x^2 = 11

-x^2 + 10x -10 = 11

-x^2 + 10x -21 = 0

x^2 - 10x + 21 = 0

(x - 7)(x - 3) = 0

x = 7, y = 30

x = 3, y = 10

8 0
3 years ago
Evaluate the expression when a = 2.<br> a^2+7a+7
Galina-37 [17]

Answer:

25

Step-by-step explanation:

a² + 7a + 7

a = 2

Plug in the value of 2 for every occurance of a.

(2)² + 7(2) + 7

First, solve the exponent.

4 + 7(2) + 7

Now, multiply.

4 + 14 + 7.

Add.

25

This is your answer.

Hope this helps!

7 0
3 years ago
Which inverse operation should be performed first?: m = 7 = 32.
Mumz [18]
The answer is multiplication
7 0
3 years ago
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