MATHEMATICS MIDDLE SCHOOL

Daniela rented a snowboard for $35 then took lessons that cost $7 per hour .if her total cost to rent a snowboard and take lessons was $73.50, how many hours of lessons did she take ?

Answers

Answer 1

Answer:

Answer:

5.5 or 51/2 hours

Step-by-step explanation:

get 73.50 and subtract it with 35. you would then get 38.5 then you divide by 7.

Answer 2

Answer:

5.5hrs

Step-by-step explanation:

35 + 35 = 70 (5 hrs) half of 7 is 3.5

70 + 3.5 = 73.50

So Daniela took 5 and a half hours of lessons

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Answers

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you have a 4x6 photo of you and your friend. You order a 5x7 print of the photo. Is the new photo similar to the original?

Answers

No because 4 times 6 =24 and 5 times 7 =35

Math wise no. 5×7 is a bigger form than 4×6, think of it like this, 4 squares up, and 6 squares side, same with the 5x7, its a bigger area and perimeter

Suppose you plan to purchase 10 items that each cost 4.45. Explain how you use mental math to to find the cost of 10 items

Answers

Answer:

44.5

Step-by-step explanation:

Multiplying 10 with 4.45 using mental math to find the total cost of 10 items. first multiply 0 with 445 which will yield 000, then multiply 1 with 445 which will yield 445 now put a cross beneath last 0 in 000 and write 445 before it and perform addition which will yield 4450 as the decimal was initially was before the second last digit in 4.45, place it accordingly in 4450 which will yield 44.5.

For a field trip, 4 students rode in cars and the rest filled nine buses. How many students went in each bus if 472 students were on the trip

Answers

Answer:

Step-by-step explanation:

only 4 students went in the cars. So 472-4=468.

You have 9 buses.

So 468÷9=52

What is 3/25 as a percent?

Answers

To write a fraction as a percent, first remember that a percent is a ratio of a number to 100. If we want to write $(3)/(25)$ as a percent, we need to find a fraction equivalent to $(3)/(25)$ that has a 100 in the denominator. We can do this by setting up a proportion.

$(3)/(25)$ = $(n)/(100)$

Now, we can use cross products to find the missing value.

25n = 300

÷3 ÷3

N = 12

Therefore, $(3)/(25)$ is equal to $(12)/(100)$ or 12%.

3/25 = 12/100 = 12%

Answer : 12%

Anything over 100 is a percent. 1/100 = 1% 2/100 = 2% etc . . .

Hope that helps and enjoy Brainly :)

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