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zaharov [31]
2 years ago
11

The sum of three numbers is 104. The first number is 10 less than the second. The third number is 4 times the second. What are t

he numbers?
Mathematics
1 answer:
AnnyKZ [126]2 years ago
6 0

Answer:

The numbers are 9, 19 and 76.

Step-by-step explanation:

Let's take the second number and make it a variable, like x. Now let's find all the other numbers in terms of x.

The first number in terms of x:

x - 10

The second number in terms of x:

4x

If we add them all up, these 3 numbers in terms of x must be equal to 104, so:

x + (x - 10) + (4x) = 104 \\ x + x - 10 + 4x = 104 \\ 6x - 10 = 104 \\ 6x = 114 \\ x = 19

Now that we know the second number, we can find the other numbers since we already figured out their values in terms of x:

19 - 10 = 9

4 \times 19 = 76

The first number is 9, second number 19 and the third number 76.

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JulijaS [17]

Answer:

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2 years ago
A four-foot tree was planted. It will grow 2.5 feet each year. The relationships between x, the number of years since the tree h
Andrew [12]

The relation between these two variables can be represented by the linear equation:

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<h3 /><h3>How to write an equation that represents this relationship?</h3>

We know that the original height of the tree was 4 ft, and it grows 2.5 feet each year.

Then if we define the variables:

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x = number of years.

The relation between these two variables can be represented by the linear equation:

y = 4ft + 2.5ft*x

This linear equation relates the height of the tree as a function of the number of years since it was planted.

Learn more about linear equations:

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7 0
11 months ago
Read 2 more answers
I need help ASAP on number 8 b and c. Thank you
s344n2d4d5 [400]
I think you're having trouble because the equation you wrote for 8a has a slight typo.

The question says that the length is 9 less than twice the width. Your equation states the length is 9 times the width minus 2. So the length actually equals 2w – 9, meaning that w(2w – 9) = 180

Hope this helps! If you're still having trouble, let me know :)
6 0
3 years ago
Positive fractions less than 1 ,with an interval of 1/8 between each pair of fractions
Ray Of Light [21]

Here are some that may help: 1/8, 2/8, 3/8, 4/8, 5/8, 6/8, 7/8

Have a great night! Hope this helped!

8 0
2 years ago
Simplify 6 cm : 1.5 m
Zolol [24]

6cm=0.06m

0.06m : 1.5m

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1m : 35m

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2 years ago
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