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Inessa [10]
3 years ago
5

If the sum of two numbers is 20 and one of those numbers is three times the other, what is the smaller number?

Mathematics
1 answer:
Mazyrski [523]3 years ago
8 0
X = smaller number
y = bigger number

y = 3x

x+y = 20
x+3x = 20
4x = 20
x = 5

The smaller number is 5.
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Rob laid three sticks end to end. The lengths of the sticks were 45 millimeters, 32 centimeters, and 4 decimeters. How long, in
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Answer:

<u>0.765 meters</u> long were the sticks when laid end to end.

Step-by-step explanation:

Given:

Rob laid three sticks end to end. The lengths of the sticks were 45 millimeters, 32 centimeters, and 4 decimeters.

Now, to find the length in meters of the sticks when laid end to end.

The lengths of the sticks are:

1st stick - 45 millimeters.

2nd stick - 32 centimeters.

3rd stick - 4 decimeters.

So, we convert the units of sticks into meters by using conversion factor:

1st stick:

1 millimeter = 0.001 meter.

45 millimeters = 0.001 × 45

45 millimeters = 0.045 meter.

2nd stick:

1 centimeter = 0.01 meter.

32 centimeters = 0.01 × 32

32 centimeters = 0.32 meter.

3rd stick:

1 decimeter = 0.1 meter.

4 decimeters = 0.1 × 4

4 decimeters = 0.4 meter.

Now, adding all the three sticks length to get the the length in meters of the sticks when laid end to end:

0.045+0.32+0.4\\\\=0.765\ meters.

Therefore, 0.765 meters long were the sticks when laid end to end.

5 0
3 years ago
What is the least even number you can make with the digits 5 2 7 3 6 4 0?
coldgirl [10]
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4 years ago
Which expression is equivalent to 2(-3x+5)?<br> A.-6x+5<br> B.-6x+10<br> C.6x-10<br> D.6x-5
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Answer:

Steps below:)

Step-by-step explanation:

1. Find the mortgage amount.

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4. Calculate the monthly principal and interest payment using a financial calculator, a spreadsheet program such as Excel or an online mortgage calculator.

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Answer: 50653

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= 50653

Step-by-step explanation:

3 0
3 years ago
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