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igor_vitrenko [27]
3 years ago
8

.A student earned 75 out of 100 in Col110 quiz for the first time, then she earned 85 out of 100 in the second time for the same

quiz, what was the percentage change(increase or decrease) in her grade? Round your answer nearest to hundredth
Mathematics
1 answer:
saveliy_v [14]3 years ago
3 0

Answer: increase

Step-by-step explanation:

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A line has a slope of zero Which of the following points could this line pass through
Rina8888 [55]

Answer:

B

Step-by-step explanation:

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

-6 - - 6 / 7 - 3

= 0 / 4 = 0

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2 years ago
The sum of the digits of a certain two-digit number is 13. Reversing its digits decreases the number by 45. Find the number..
lesya [120]

Answer:

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3 years ago
A coat and a pair of boots are on sale for 20% off. The regular price of the coat is $225. The regular price of the boots is $13
kondaur [170]

Answer:

Part A = $180

Part B = $104

Step-by-step explanation:

Part A:

You do 255÷5=51

51 x 4 = 180

Part B:

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7 0
2 years ago
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Find the measurements of ZBOC.
KengaRu [80]

Answer:

∠ BOC = 40°

Step-by-step explanation:

∠ AOC = 90° , then

5x + 2x + 20 = 90

7x + 20 = 90 ( subtract 20 from both sides )

7x = 70 ( divide both sides by 7 )

x = 10

Then

∠ BOC = 2x + 20 = 2(10) + 20 = 20 + 20 = 40°

8 0
2 years ago
Y = 4x + 5<br> 2x + y = 17<br><br> Something about substitution to solve a system of an equation
Leto [7]

Answer:

x=2, y=13. (2, 13).

Step-by-step explanation:

y=4x+5

2x+y=17

----------

2x+4x+5=17

6x+5=17

6x=17-5

6x=12

x=12/6

x=2

y=4(2)+5

y=8+5=13

8 0
3 years ago
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