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Dmitrij [34]
3 years ago
13

Maria does weightlifting for 30 seconds and then aerobics for 60 seconds. She repeats this 10 times. If she does not take any br

eaks, how many minutes does she exercise?
Mathematics
2 answers:
olga2289 [7]3 years ago
5 0
It took 15 minutes !!
VikaD [51]3 years ago
3 0

Answer:

15 minutes

Step-by-step explanation:

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Peggy was taking a timed 60-question test. She was able to correctly answer 70% of the questions but had to skip the rest. How m
Goryan [66]
The answer should be 42.

Since there are 60 questions in the test and she managed to answer 70% of the questions correctly, that means that she answered 70% out of 60 questions correctly.

So you need to calculate how much 70% out of 60 is. Since % is always measured on a base from 0 (%) to 100(%), then 70% is equal to the fraction 70/100, simplified to 7/10. To know how much 7/10 out of 60 is,you just multiplie them and your answer will be 42. 

I hope this helps you forward.
4 0
3 years ago
Solve for x x+29=-11
netineya [11]

Answer:

x= -40

Step-by-step explanation:

x+29=-11

Subtract 29 from each side

x+29-29 = -11-29

x =-40

6 0
4 years ago
Read 2 more answers
For 30 points here you go please answer truthfully
VARVARA [1.3K]

Answer:

855 sorry i miscalculated :c okay stay safe :D

Step-by-step explanation:

enjoy

6 0
3 years ago
Need asap‼️
faltersainse [42]

Answer:

oc

Step-by-step explanation:

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6 0
3 years ago
A cylindrical diesel fuel holding tank has a radius of 6 feet and a length of 12 feet. What is the maximum volume of fuel the ta
Delicious77 [7]

Answer: 1356 cubic feet

Step-by-step explanation:

The volume of cylinder is given by :_

Volume = \pi r^2l, where r is the radius and l is the length of the cylinder.

Given : A cylindrical diesel fuel holding tank has a radius of r= 6 feet and a length of l=12 feet.

Therefore,

Volume=\pi (6)^2(12)\\\Rightarrow\ Volume=3.14\times(36)(12)=1356.48\approx1356

Hence, the volume of cylindrical diesel fuel holding tank =1356 cubic feet

Therefore, the  maximum volume of fuel the tank can hold 1356 cubic feet.

5 0
3 years ago
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