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3 years ago

The sum of two numbers is 26. Their dif. ference is 4. Find the smaller number

2 answers:

8 0

Equations:
x + y = 26
x - y = 4
---
Add to get:
2x = 30
x = 15
---
Solve for "y":
x + y = 26
15 + y = 26
y = 11 (smaller number)

Andreyy893 years ago

4 0

Answer:

The smaller number is 11

Step-by-step explanation:

Let x represent one number and y represent the other.

Since the sum of 2 number is 26, x + y = 26.

The difference of the 2 numbers is 4, so x - y = 4.

x + y = 26

x - y = 4

Solve by combing the two equations:

x + x + y - y = 26 + 4

2x = 30

x = 15

x - y = 4

15 - y = 4

y = 15 - 4 = 11

Since 11 < 15, the smaller number, y , is 11.

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3 years ago

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3 years ago

Geometry math question no Guessing and Please show work

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4 years ago

From the height of 30 meters above sea level of a cliff, a ship is sighted due west. The angle of depression is 20How far from t

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3 years ago

David charges $4 to wash all the windows of a car, inside and out. The amount of money he earns washing the windows must end in

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Answer:

The possible digits are : 0, 2, 6, 4, 8

Step-by-step explanation:

Money charged by David to wash the windows of a car = $4

Let total number of cars he washed be x

Now, Total money earned by washing windows of a car = Money charged for washing all windows of one car × Total number of cars washed

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So, the amount will always end in the digits which comes at the end of multiples of 4 because the amount will be always in the multiples of 4

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4 years ago