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Umnica [9.8K]
3 years ago
8

Deangelo has $7 worth of dimes and quarters in a jar. He has 7 more quarters, than dimes.

Mathematics
1 answer:
STALIN [3.7K]3 years ago
5 0

Answer:

y = 15 and x = 22

Step-by-step explanation:

700 = 25x + 10y

x = y + 7

700 = 25(y +7) + 10y

700 = 35y + 175

525 = 35y

15 = y

700 = 25x + 150

550 = 25x

22 = x

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7 0
3 years ago
1. If you are asked to use elimination to solve for x", what do you need to multiply the bottom equation by to eliminate "y?
hram777 [196]

Answer:

-5

Step-by-step explanation:

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2 years ago
There are 12 blue marbles and 8 red marbles. find the probability of selecting one item
Diano4ka-milaya [45]

Answer:

selecting one item? If you mean each color:

40% chance for a red marble / 2/5 chance

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Step-by-step explanation:

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8 0
3 years ago
A jar has 15 red marbles,5 blue marbles,10 green marbles.what is the ratio of red marbles to the total number of marbles in simp
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Answer:

1:2

Step-by-step explanation:

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15+5+10 = 30

Out of 30 total marbles, 15 are red marbles. We can write the ratio as:

15:30

This ration can be simplified to:

1:2

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