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Stella [2.4K]
3 years ago
8

Jerome bought 2 postcards and received $1.35 in change back in quarters and dimes. If he got 6 coins back, how many of each coin

did he get?
Mathematics
2 answers:
iogann1982 [59]3 years ago
4 0

Jerome would get 5 quarters and a dime back.

antoniya [11.8K]3 years ago
3 0

Answer:5 quarters and 1 dime

Step-by-step explanation:

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I need to show my work help
Tema [17]

Answer:

it will take 90 minutes

Step-by-step explanation:

10 - 6 = 9

9 x 10 = 90

4 0
2 years ago
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Solve: 2x+3y=1<br> y=-2x+11
Sauron [17]

Answer:

(8, -5); x=8; y=-5

Step-by-step explanation:

i'll be solving via substitution

2x+3y=1; y=-2x+11

2x + 3(-2x +11) = 1

2x -6x +33 = 1

-4x = -32

x = 8

2(8) + 3y = 1

16 + 3y = 1

3y = -15

y = -5

(8, -5)

Check:

-5 = -2(8) + 11

-5 = -16 + 11

-5 = -5

6 0
3 years ago
What is the length of AC¯¯¯¯¯ ?
Harman [31]

Answer:

AC = 12.38 cm

Step-by-step explanation:

When there are 2 pairs given, we can use the sine rule to solve the problem.

By pairs we mean "an angle and side opposite to it"

<em>1 pair is 85.2 degree angle and 13 cm, and another pair is 71.6 degree angle and the side AC (which we want to figure out).</em>

<em />

Sine Rule is given by \frac{SinA}{a}=\frac{SinB}{b}

where,

A and B are the two respective angles and a and b are the two respective sides (of the pairs). Plugging all the info and using algebra, we have:

\frac{Sin85.2}{13}=\frac{Sin71.6}{AC}\\AC*Sin85.2=13*Sin71.6\\AC=\frac{13*Sin71.6}{Sin85.2}\\AC=12.38

Thus, AC = 12.38 cm

5 0
3 years ago
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12(x-3)+18= what is the awnser
Mila [183]

Answer:

32

Step-by-step explanation:

The answer would be 32:);)

7 0
3 years ago
Brian is 8 and his brother is twice his age. How old will his brother be when brian is 11?.
GenaCL600 [577]
If brian is 8 and his brother is twice his age, his brother is 16. His brother is 8 years older so when Brian is 11 he will be 19
5 0
1 year ago
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