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Dima020 [189]
2 years ago
9

Tom purchased international calling cards before traveling abroad. He bought a 60-minute card for $9.99, a 90-minute card for $1

4.29, a 100-minute card for $17.99, and a 200-minute card for $29.49. After using all of his calling cards, Tom used his mobile phone for 38 minutes at a rate of $2.99/minute.
Mathematics
1 answer:
SpyIntel [72]2 years ago
5 0

The amount spent on calls per minute is an illustration of unit rates.

The amount spent on the 38-minute call is $113.62

The given parameters are:

\mathbf{Rate = \$2.99/minute}

\mathbf{Time = 38\ minutes}\\

So, the amount spent on call is:

\mathbf{Amount = Rate \times Time}

This gives

\mathbf{Amount = \$2.99/minute \times 38\ minutes}

Cancel out minutes

\mathbf{Amount = \$2.99 \times 38}

\mathbf{Amount = \$113.62}

Hence, the amount spent on the 38-minute call is $113.62

Read more about unit rates at:

brainly.com/question/18065083

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Answer:

an even number is a number that is divisible by 2 so there it will be 16 38 44 48 68 84 and 92

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Ahab needs to mix 3.5 cups of liquid iced tea concentrate with 3 cups of water to make iced tea. Ahab has 21 cups of iced tea co
liraira [26]

Answer:

  39 cups

Step-by-step explanation:

If we assume that the 3.5 cups of concentrate make 3.5+3 = 6.5 cups of tea, we can use the proportion ...

  6.5/3.5 = x/21

to find the x cups of tea Ahab can make with 21 cups of concentrate.

Multiplying by 21, we get ...

  x = 21(6.5/3.5) = 39

Ahab can make 39 cups of tea.

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3 years ago
HELP ASAP!!! DUE SOON!!!<br> 7 7/8 - 3 9/16​
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Answer:

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Step-by-step explanation:

7 7/8 - 3 9/16

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4 0
3 years ago
Read 2 more answers
Q. A room measure 3m 55cm by 2m 25 cm. What is the perimeter of the room?
Bond [772]

Answer:

100cm = 1m

Thus, one more step should be added to your working to arrive at the final answer:

Perimeter

= 10m 160cm

= 11m 60cm

This is because 160cm= 100cm +60cm, which is also equivalent to 1m 60cm.

Alternative working:

Convert all the units to cm first.

\boxed{1 \: m= 100 \: cm}

Length

= 5m 55cm

= 300cm +55cm

= 355cm

Breadth

= 2m 25cm

= 200cm +25cm

= 225cm

Perimeter

= 2(length +breadth)

= 2(355 cm +225 cm)

= 2(580 cm)

= 1160 cm

= 11m 60cm

From the second last step to the last step, you could divide 1160 by 100 to find how many meters are there. You would get a quotient of 11 and a remainder of 60. Since this 60 cannot be changed into meters as a whole number, we can leave it as 11m 60cm. Otherwise, it is also correct to leave it as 1160cm or 11.6m unless otherwise stated.

However, 10m 160cm is not preferred since the conversion of cm to m is done partially, as the 160 cm can still be further simplified.

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A video company charges a yearly membership fee plus a daily rental charge for a movie. The cost c, if renting a movie for a cer
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Answer:

answer A

Step-by-step explanation:

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