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Svetradugi [14.3K]
3 years ago
11

Mary has $15 and she wants to buy some earrings. She picks one pair that costs $7.99 and two pairs that cost $2.59 each. Which s

tatement best describes if an exact total or an approximate total should be calculated?
A.
Mary can round the prices of the earrings to the nearest dollar and then add to estimate if she has enough money.

B.
Mary must add the exact cost of the three pair of earrings so she will know if she has enough money to buy the third pair.
Mathematics
2 answers:
denis23 [38]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Alika [10]3 years ago
3 0
B. Estimation is good sometimes, but not in these cases.
Trust me, it's happened to me b4.
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2 years ago
The ratio of forks to spoons in the cafeteria is 15:25. If the total
9966 [12]

Answer:

30 forks

Step-by-step explanation:

Let's start by simplifying the given ratio. Since both 15 and 25 are multiples of 5, we can divide the whole ratio by 5.

Forks: spoons

= 15: 25

= 3: 5

This means that forks take up 3 units of the total number of utensils, while the number of spoons is 5 units of the total number of utensils.

Number of forks= 3u

Number of spoons= 5u

Units shall be represented by the letter u from this point forth.

Now, we can form an equation using the total number of utensils in the cafeteria.

Assuming that the utensils in the cafeteria are only forks and spoons,

number of fork and spoons= 80

3u +5u= 80

8u= 80

Let's solve for u.

Divide by 8 on both sides:

1u= 80 ÷8

1u= 10

This means that 1 unit represents 10 utensils.

Substitute the value of u into the expression of the number of forks:

Number of forks

= 3u

= 3(10)

= 30

Thus, there are <u>30 forks</u> in the cafeteria.

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2 years ago
Jhonny has 7 apples how manuy apples does jonny haves
kicyunya [14]

Answer: 7 apples

Step-by-step explanation:

Considering it's the same person and you only had a typo?

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