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siniylev [52]
2 years ago
13

Help! Please, I’m confused

Mathematics
1 answer:
Mars2501 [29]2 years ago
4 0

Answer:

Step-by-step explanation:

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Tina paid $6.60 for some $0.15 stamps and some $0.20 stamps. She bought 37 stamps in all. How many of each kind did she buy?
sergiy2304 [10]

Answer:

Let n be the number of 25 cent stamps.Then, 28 - n must be the number of 29 cent stamps.Tim paid $7.60 the stamps.

0.25n + 0.29(28 - n) = 7.60

This means that n stamps at 25 cents a piece plus (28 - n) stamps at 29 cents a piece sum to $7.60.Solve for m.

0.25n + 8.12 - 0.29n = 7.60

-0.04n = -0.52

n = 13

So, Tim bought 13 25-cent stamps and 28 - 13 = 15 29-cent stamps

Step-by-step explanation:

hope this helps:)

4 0
2 years ago
15.31 x 0.7<br> 10.717<br> 11.717<br> 107.17<br> 1.0717
Dimas [21]

Answer:

10.717

Step-by-step explanation:

15.31×0.7 = 10.717

4 0
2 years ago
Does the order in which the two transformations in a composite transformation affect the final
kap26 [50]

The order in which the two transformations in a composite transformation affect the final answer

<h3>How to determine the composite transformation?</h3>

To determine if order matters or not, I will use the following example and illustration.

Let the coordinate of point A be:

A = (2, 5)

Perform the following transformations:

  • Translate by (x, y + 1)
  • Dilate by a scale factor of 2

First order: Translation before dilation

The translation by (x, y + 1) would give:

A' = (2, 5 + 1)

A' = (2,6)

The dilation by a scale factor of 2 would give

A" = 2 * (2,6)

A" = (4,12)

Second order: Dilation before translation

The dilation by a scale factor of 2 would give

A' = 2 * (2,5)

A' = (4,10)

The translation by (x, y + 1) would give:

A'' = (4, 10 + 1)

A'' = (4,11)

See that the final coordinates in both orders are not the same.

Hence, the order in which the two transformations in a composite transformation affect the final answer

Read more about transformation at:

brainly.com/question/1548871

#SPJ1

6 0
2 years ago
A 1.8-ounce jar cinnamon costs $4.05. What is the cost per ounce?
Paha777 [63]
$4.05/1.8 oz= $2.25 per oz

Final answer: $2.25 per oz
6 0
2 years ago
Read 2 more answers
Last week, the price of oranges at the farmers market was $1.75 per pound. This week, the price has decreased by 15%. What is th
aliina [53]

Answer:

 11.6 (6 is repeating)

Step-by-step explanation:

1.75 divided by 15% of 75

3 0
2 years ago
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