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Anuta_ua [19.1K]
2 years ago
7

Markus spent 12 hours doing his homework last week. This week he spent 15 hours doing homework. He says that he spent 125% more

time doing homework this week. Is he correct? Show your work to justify your decision.
Mathematics
1 answer:
spin [16.1K]2 years ago
5 0

Answer:

He is correct

Step-by-step explanation:

12=100%

15 is 3 more than 12

12 divided by 3 is 4

100 divided by 4 is 25

100 + 25 = 125

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The oblique pyramid has a square base.
Brums [2.3K]

Good evening ,

______

Answer:

the volume of the pyramid = 5cm³

___________________

Step-by-step explanation:

the volume of the pyramid = (b×h)/3 = (2²×3,75)/3 = (4×3,75)/3 = 15/3 = 5.

:)

6 0
3 years ago
A car is moving 70 miles per hour. how far does it travel in 16 seconds
Serjik [45]

Answer:

0.311 miles

Step-by-step explanation:

Convert 16 seconds to hours :

16 /60×60

= 16÷3600

= .004444hrs

Distance = Speed × time

= 70 × 0.00444444

= 0.311 miles

4 0
3 years ago
Read 2 more answers
Write a problem involving money and 1,350
Olegator [25]
Someone has 1350 dollars and he put it in the bank. then someone robbed him
8 0
3 years ago
Read 2 more answers
Kevin and Randy Muise have a jar containing 78 coins, all of which are either quarters or nickels. The total value of the coins
gregori [183]
Answer:

50 quarters and 28 nickels

Step-by-step solution:

We have two variables we are solving for. We will call them Q for the number of quarters and N for the number of nickels.

We know that the total number of coins is equal to 78, and we know that the total amount the coins are worth is equal to $13.90. With this information, we can set up a system of equations:

Q + N = 78

0.25Q + 0.05N = 13.90

Now we can solve for either Q or N in the first equation and solve by substitution by plugging the value into the second equation. Let's solve for Q:

Q = 78 - N

Now plug in 78-N for Q:

0.25(78-N) + 0.05N = 13.90

Distribute and combine like terms:

19.50 - 0.25N + 0.05N = 13.90

19.50 - 0.20N = 13.90

-0.20N = -5.60

N = 28

Now we know that there are 28 nickels. We can plug this into one of the original equations to solve for Q:

Q + 28 = 78

Q = 50

There are 50 quarters. We can verify our answer by plugging the values for A and N into the other equation (optional step to check work):

0.25(50) + 0.05(28) = 13.90

12.5 + 1.40 = 13.9

13.9 = 13.9

Our answer is correct.





5 0
3 years ago
Plz find all question
n200080 [17]

Answered in my other reply :)

8 0
3 years ago
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