3 years ago

Maria's coin collection contains three nickels for every 30 dimes.If Maria has 630 dimes,how many nickels does she have.

Mathematics

1 answer:

Ad libitum [116K]3 years ago

4 0

Answer:

81 nickles i think.

Step-by-step explanation:

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Andrea's rectangle measures 2 1/2 units by 2 1/2 units. What is its area?

Art [367]

Answer:6.25

Step-by-step explanation:

2.5x2.5=6.25

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2 years ago

Currently a product has a gear ratio of 17:5, driver:driven. If the company wants to change the product to have the same gear ra

Sedbober [7]

Answer:

10 teeth must go on the driven gear

Step-by-step explanation:

Let the number of teeth be x

In order for the new product to maintain the same ratio as the old the ratio must remain the same. This means that

17:5 = 34:x

$\frac{17}{5} = \frac{34}{x}\\Now\ let\ us\ cross-multiply\\17 \times x = 5 \times 34\\17x = 170\\dividing\ both\ sides\ by\ 17 \\x = \frac{170}{17} \\x = 10$

∴ 10 teeth must go on the driven gear

hence ratio = 34:10

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3 years ago

Angie completes 80% of her homework problems before practice. She was assigned 30 problems. How many problems were completed bef

Sunny_sXe [5.5K]

The correct answer is 50

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3 years ago

Read 2 more answers

Why is looking at cash flow an important step in a good financial plan?

4vir4ik [10]

Answer:

Cash flow refers to the constant movement of money, both where and how much you're spending as well as how much you're earning in return.

Step-by-step explanation:

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3 years ago

What is the first step to isolate the variable term on one side of the equation?

Vilka [71]

Answer:

the answer to the whole equation is x=30.

Step-by-step explanation:

do 2/3(2) and -1/2(3)

4/6x and -3/6x

add the -3/6x to the other side

7/6x or 1 and 1/6x=5

times both by 6

x=30

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3 years ago