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prisoha [69]
3 years ago
9

Which equation is equivalent to x+8 = 21?

Mathematics
1 answer:
vaieri [72.5K]3 years ago
5 0
The answer to your question would be:
(X+8) x 4= 21x4
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The equations = p - 0.15p represents the sale price a of an item with an original price p, after a 15% discount. Make a table to
MariettaO [177]
12-0.15×12=$10.2
16-0.15×16=$13.6
20-0.15×20=$17
25-0.15×25=$21.25
Sorry if this didn't help.
6 0
3 years ago
Frank needs to fill juice cups for his little sister's birthday party. There are 35 juice cups and each juice cup holds 12 fluid
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3 0
3 years ago
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a coin collection consists of nickels, dimes, and quarters, and has a total value of $3.30. there are three times as many nickel
son4ous [18]

Answer:

18 nickels, 9 dimes, 6 quarters.

Step-by-step explanation:

Basically, I just made a money table and used it to get my equation, which is: 60x-30=330, to get how many quarters there are. Then, plug that in to the problem and you have your answer.

4 0
3 years ago
You have $125.60 in quarters and
Sloan [31]

Answer:

Quarters = q = 200

Dimes = d = 756

Step-by-step explanation:

Let

Dimes = d

Quarter = q

Value of each Dime = 0.10

Value of each Quarter = 0.25

d + q = 956 (1)

0.1d + 0.25q = $125.60 (2)

From (1)

d = 956 - q

Substitute d = 956 - q into (2)

0.1d + 0.25q = $125.60

0.1(956 - q) + 0.25q = $125.60

95.6 - 0.1q + 0.25q = $125.60

- 0.1q + 0.25q = 125.60 - 95.6

0.15q = 30

Divide both sides by 0.15

q = 30 / 0.15

= 200

q = 200

Substitute q = 200 into (1)

d + q = 956

d + 200 = 956

d = 956 - 200

= 756

d = 756

Therefore,

Quarters = q = 200

Dimes = d = 756

3 0
3 years ago
Someone please help me.
Alexandra [31]

Answer:

y=mx +b  

slope intercept form...

B = y-intercept...

b=9/10

y-intercept = 9/10

Step-by-step explanation:

5 0
3 years ago
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