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Alex777 [14]
3 years ago
6

Please help me with this.

Mathematics
1 answer:
deff fn [24]3 years ago
6 0

Answer: Angles: 42°, 114°, 24°, 30°, 150°.

Step-by-step explanation:

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Marcos had 15 coins in nickels and quarters. He had 3 more quarters than nickels. He wrote a system of equations to represent th
hodyreva [135]

Answer:

There are 6 coins in nickels and 9 coins in quarters.

Step-by-step explanation:

Now, to find the solution.

According to question:

The number of nickels = x.

The number of quarters = y.

So, the total number of coins:

x+y=15.

He had 3 more quarters than nickels.

Thus,

y=x+3 .....(1)

Now, to get the solution:

x+y=15

Substituting the equation (1):

x+(x+3)=15

x+x+3=15

2x+3=15

<em>Subtracting both sides by 3 we get:</em>

<em />2x=12<em />

<em>Dividing both sides by 2 we get:</em>

x=6.

<em>The number of nickels = 6.</em>

Now, substituting the value of x in equation (1):

y=x+3\\\\y=6+3\\\\y=9.

<em>The number of quarters = 9.</em>

Thus, there are 6 coins in nickels and 9 coins in quarters.

6 0
3 years ago
HELP PLEASE WILL MARK BRAINLIEST!!
abruzzese [7]
12 would be the answer to that. Hope it helps!
8 0
3 years ago
Find the solution to the equations.<br> 2х-у=-3<br> х+у=0<br><br> 0,0<br><br> -1,1<br><br> 1,-1
kobusy [5.1K]
It’s 0,0. The correct answer!
3 0
3 years ago
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The shaded parts of the bar below represent a fraction.
Alja [10]

Answer:

A fraction bar divided into 2 parts. 1 part is shaded.

Step-by-step explanation:

Divide your answers, as well as your problem.

Problem = 2/4 = .5

First answer = 1/2 = .5

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3 years ago
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Which equation represents this statement?
denis-greek [22]
The answer is 5(n+7)=40... l hope it helped
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