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Vanyuwa [196]
2 years ago
13

Can someone help me please

Mathematics
1 answer:
nataly862011 [7]2 years ago
7 0

Answer:

D is 90 E is 81 F is 99

Step-by-step explanation:

D is 90 because a straight angle equals 180 degrees. E is 81 because it is directly across from 81. F is 99 because 180-81 is 99

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Is it true that 19 subtracted by 10 equals 8 correct if not what is the right answer ​
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Please answer the following:
konstantin123 [22]

Answer:

26 1/2

Step-by-step explanation:

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Read 2 more answers
Paul has 12 coins in his pocket, consisting entirely of dimes and quarters. If he has a total of 195 cents in coins, how many co
anyanavicka [17]

Let x be the number of dimes

and y be the number of quarters

Total number of coins = 12

So number of dimes + number of quarters = total number of coins

x + y = 12 ---------> equation 1

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y quarters = 25y cents , x dimes = 10x cents

x dimes + y quarters = 195 cents

10x + 25y = 195 -----------> equation 2

Now solve both equations

x + y =12, we solve for y by subtracting x on both sides

y = 12-x

Now substitute y in second equation

10x + 25(12-x) = 195

10x + 300 -25x = 195 (combine like terms)

-15x + 300 = 195 (subtract 300 on both sides)

-15x = -105 ( divide by -15)

x=7

y= 12-x

y=12-7 = 5

The number of dimes = 7

Number of quarters = 5






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3 years ago
Which of the following is the solution to the system of equations shown below?
antiseptic1488 [7]

Answer:

x = -2, x = 1

Step-by-step explanation:

mark as brainliest it is right

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