MATHEMATICS HIGH SCHOOL

Lona read 40 books for the read-a-thon. She read 30% historical fiction and20% sports stories. The rest were mysteries. How many mysteries did lona read?

Answers

Answer 1
Answer:

20 mysteries. Add 20% and 30% to get 50%. Then rewrite 50% as 50/100. Next multiply 50/100 by 40 to get 2,000/100.The last thing to do is simplify to get 20 and subtract 20 from 40 to get 20 mysteries.

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What is a good reasoner this help plz.SO I copied an answer for my school and I accidentally copied "hope this helped" and she is wondering why I put that... PLZ HELP :/

Answers

Answer:

say that you meant to say "hope this is correct" but accidentally put that

Step-by-step explanation:

Answer: I pushed the wrong button on my computer I apologize.

Step-by-step explanation: That's the best I got.

(1.5 X 10-2) (8.0 X 10-1)

Answers

Answer: 4080

51•80=4080

The equation of line k is y=-1/5x -1/8. What is the equation of the line that is perpendicular to line k and passes through (0,0)?

Answers

y=-1/5 x-1/8
Gradient, m= -1/5
A line perpendicular will be;
m=15
y=mx+c
Replacing for x and y;
0=5(0)+c
c=0
y=5x

Royston's car had 15 1/5 gallons of gas at the start of the trip. During the trip, he stopped at a gas station and he refueled the car with 5 3/5 gallons. If the car consumed 17 4/5 gallons of gas during the trip, there are still ____________ gallons of gas remaining in the tank?

Answers

there are still 3 gallons of gas left.
15 1/5 + 5 3/5 = 20 4/5

that is the total gallons of gas avalible

but they only used 17 4/5, so

20 4/5 - 17 4/5 = 3

so he only had 3 galons left after the trip

Given the following information, choose the brand that is the better buy.Brand A: $1.25 for 10 ounces
Brand B: $1.47 for 12 ounces
Brand C: $1.68 for 14 ounces
Brand D: $1.84 for 16 ounces

Answers

By using proportions, it is found that the better buy would be d. Brand D: $1.84 for 16 ounces.

What is a proportion?

A proportion is defined as the fraction of a total amount.

In the given problem, the better buy will be given by the lowest ratio of price to ounces.

Hence:

1.25/10 = 0.125

1.47/12 = 0.1225

1.68/14 = 0.12

1.84/16 = 0.115

Hence brand D is the better buy.

More can be learned about proportions;

brainly.com/question/24372153

#SPJ2
The best buy would be Brand D, because you get more for the money you spend. $1.84 for 16 oz of product comes to .115 cents per ounce which is the cheapers per ounce price of the 4 brands.

Help ?? please ASAP

Answers

Answer: The measure of angle 1 is equaled to 20

Step-by-step explanation:

4x= 80 (You divide 80 by 4, which is 20), so the measure of angle 1 is 20.
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