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Veseljchak [2.6K]
3 years ago
9

Mrs. Baca uses a phone card to call her relatives in Columbia. It costs her 45 cents to talk for 15 minutes. How long can she ta

lk for 75 cents? (HINT: find the unit rate first.) *
Mathematics
1 answer:
aniked [119]3 years ago
7 0

Answer:

25 minutes.

Step-by-step explanation:

Unit rate = 45/15 = 3 cents / minute.

So she pays 3 cents for 1 minute

and for 75 cents  she can talk for 75 * 1/3  = 25 minutes.

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Allison bought 15 donuts and 12 cupcakes at the bakery. Of these items, 2/3 of the donuts were glazed, and 4/6 of the cupcakes w
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Answer: 7

Step-by-step explanation: I had this question before

8 0
4 years ago
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Donte simplified the expression below.
sergij07 [2.7K]
The answer is: [A]: He did not apply the distributive property correctly for                                        4(1 + 3i) .
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Explanation:
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Note the distributive property of multiplication:
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a*(b+c) = ab + ac.
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As such: 4*(1 + 3i) = (4*1) + (4*3i) = 4 + 12i ;
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Instead, Donte somehow incorrectly calculated:
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4*(1 + 3i) = (4*1) + 3i = 4 + 31; (and did the rest of the problem correctly);

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4+ 3i - 8 + 5i = -4 + 8i (the incorrect answer as stated in our original problem.
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This corresponds to: "Answer choice: [A]: <span>He did not apply the distributive property correctly for 4(1 + 3i)."
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4 years ago
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Answer:

The ”P”in 20Pg represents

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5 0
3 years ago
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3 years ago
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The diameter of the base of the cone measure 17units the height measures 15units what is the unfilled volume inside the cylinder
777dan777 [17]

Answer:

V = 1134.9

Step-by-step explanation:

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Firstly we need to divide 17 by 2 to get the radius which is 8.5

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=\pi x 8.5^{2} x \frac{15}{3}

= 1134.9

4 0
4 years ago
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