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zhuklara [117]
3 years ago
13

Easy one - giving brainly - show work.​

Mathematics
2 answers:
Hitman42 [59]3 years ago
7 0

Answer:

22 students

Step-by-step explanation:

There is two ways to do this problem.

1: since 80% of her class has a calculator you know that 20% does not because 100% - 80% = 20%, then from there you can multiply 110 by 0.2 (20% converted into a decimal) and get 22

2: or you could multiply 110 by 0.8 (80% as a decimal), then take that value (88) and subtract it from 110, (110 - 88 = 22)

Fynjy0 [20]3 years ago
6 0

Answer:

22 students do now have their own calculators

Step-by-step explanation:

80% of 110 is 88

you can find this by multiplying 110 by 0.8

110 - 88 = 22

22 students do now have their own calculators

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If tap and bre are supplementary and bre is its own complement, find the measure of tap. explain how you arrived at your answer
Pie
Supplementary angles are those whose sum is equal to 180° while those that are complementary are those whose sum is equal to 90°. Since, we are given that bre is the complement of itself, its measure can be calculated through the equation,
                           m∠bre + m∠bre = 90°
                                   m∠bre = 45°

Then, for the relationship of bre and tap, we have the equation,
                       m∠bre + m∠tap = 180°
                        45° + m∠tap = 180°
                                m∠tap = 135°

The measure of tap is equal to 135°. 
3 0
3 years ago
Factor b3 +b2 + b + 1.
olga nikolaevna [1]

Answer:

(b+1)(b²+1)

Step-by-step explanation:

8 0
3 years ago
A new plasma screen tv costs $2,970. A family makes a down payment of $720 and pays off the balance in 18 equal monthly payments
ratelena [41]
The monthly payment would be 125. 2,970-720=2,250 2,250/18=125 a month 
4 0
3 years ago
Scott is four more than double the age of Todd. Scott is 56. What is Todd's age?
SSSSS [86.1K]

Answer: 26 years old

Step-by-step explanation:

Since Scott is four more than double the age of Todd, start by taking away four from Scott's age.

56-4=52

Then take half of that because that would be double of Todd's age

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Todd is 26 years old.

5 0
2 years ago
Somebody Please help Me
Firdavs [7]
19. -x-2 = 2/3x + 3
5/3 x + 3 = -2
5/3x = -5
x = -3

20. none are correct, you can double check me by plugging in the x and y values in the coordanates into the first problem none of them worked out in the first equasion so no need to test the second

21. -3 is the answer, capable of being done by using desmos 
4 0
3 years ago
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