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ozzi
3 years ago
13

Four times the sum of a number and 6 is 5

Mathematics
1 answer:
aalyn [17]3 years ago
4 0

Answer:

Step-by-step explanation:

Let the number be x

4(x + 6) = 5

4x +24 = 5

4x = 5 - 24

4x = -19

x = -19/4

x = -4 3/4

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A piggy bank contains 36 coins that consists of dimes and quarters totaling $5.85 how many quarters are in the piggy bank in you
Lesechka [4]
The main idea here is to "translate" the words into maths. 
First we need to identify the unknowns and label these. 

We need to know the number if dimes and the number of quarters. So lets say
x: number of dimes
y: number of quarters

Now lets write equations from the written problem. 
We know that there are 36 coind total, thus: 
x + y = 36
We also know that the coins total 5.85 dollars, but it is better to count in cents, that is 585 cents. 
x are the number of dimes, their value is x*10
y are quarters with value of y*25
thus: 
10x+25y=585

We have two equations and two unknowns now, that needs to be solved to get the answer. 

x + y = 36
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2 years ago
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Does a set of rational numbers include the set of integers
NeX [460]
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3 0
3 years ago
How many terms are in this expression?<br> 5 -x2 + 4y - 3x + 4z
sleet_krkn [62]

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8 0
3 years ago
Given triangle ABC with m M
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2 years ago
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6 0
3 years ago
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