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hjlf
2 years ago
10

X/5 = -3 x=____ help

Mathematics
2 answers:
Kipish [7]2 years ago
8 0
X=-15 , when u divide it , you’ll get -3
scZoUnD [109]2 years ago
7 0
I feel like a creep because I’m replying to most of your answers lol. But the answer is x = -15
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A city's population was 30,200 people in the year 2010 and is growing by 950 people a year. Give a formula for the city's popula
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the formula should look like this:

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3 years ago
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How many ways are there to arrange 7 distinct red and 5 distinct blue balls in a row such that no two blue balls are next?
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The average value of two positive numbers is 30% less than one of the two numbers. By which percentage is average value bigger t
Viefleur [7K]

Answer:

75% bigger

Step-by-step explanation:

Let the first number be x and the second be y.

So:

Average = \frac{x + y}{2}

And:

Average = (1 - 30\%) * x -----30% less than x

Substitute Average = (1 - 30\%) * x in Average = \frac{x + y}{2}

\frac{x + y}{2} = (1 - 30\%) * x

\frac{x + y}{2} = (1 - 0.30) * x

\frac{x + y}{2} = 0.70 * x

\frac{x + y}{2} = 0.70x

Cross multiply

x + y = 0.70x * 2

x + y = 1.40x

Collect like terms

1.40x - x = y

0.40x = y

Make x the subject

x = \frac{y}{0.40}

x = 2.50y

So, the average is:

Average = (1 - 30\%) * x

Average = (1 - 30\%) * 2.50y

Average =0.70 * 2.50y

Average =1.75y

Rewrite as:

Average =(1 + 0.75)y

Express as percentage

Average =(1 + 75\%)y

This means that the average is 75% bigger than the second number

6 0
2 years ago
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Answer:

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14 is the answer

It's trial and error

Step-by-step explanation:

4 0
3 years ago
Solve the equation for y. 4x+y=-5
sesenic [268]

Y is 5! Good Luck Fam

6 0
3 years ago
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