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zloy xaker [14]
3 years ago
13

Write an expression that can be used to find 4x275 using mental math and properties of numbers

Mathematics
1 answer:
Reil [10]3 years ago
4 0
4 x 200 + 4 x 70 + 4 x 5
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2. The sum of two numbers is 51 and the greater number is twice the smaller number. Find the numbers aj set up the variables (2
storchak [24]

Answer:

Larger number = 34

Smaller number = 17

Step-by-step explanation:

Given that:

Sum of numbers = 51

Let,

x be the larger number

y be the smaller number

According to given statement;

x+y=51       Eqn 1

x = 2y        Eqn 2

Putting x=2y in Eqn 1

2y+y=51

3y=51

Dividing both sides by 3

\frac{3y}{3}=\frac{51}{3}\\y=17

Putting y=17 in Eqn 2

x=2(17)

x=34

Hence,

Larger number = 34

Smaller number = 17

7 0
3 years ago
What makes a sample random
Yuliya22 [10]

Answer:

<u>A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen. ... An example of a simple random sample would be the names of 25 employees being chosen out of a hat from a company of 250 employees</u>

<u>Step-by-step explanation:</u>

<u>i searched it up</u>

7 0
3 years ago
Read 2 more answers
Round 66,315,254 to the nearest ten-million
Flauer [41]

Answer:

Step-by-step explanation:

66,315,254.....rounded to the nearest 10 million =

70,000,000

4 0
3 years ago
Which describes how a person most likely uses latitude and longitude lines? ​
Gekata [30.6K]
A person most likely uses latitude and longitude lines to find an ocean or somewhere they are looking for
3 0
3 years ago
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The area of a rectangular computer screen is 4x^2+20x+16. The width of the screen is 2x+8. What is the length of the screen?
Aleksandr-060686 [28]
So the area of a rectangle is Length x Width. 
A = (L)(W)
Substitute the information given:
4x^2 + 20x + 16 = (L)(2x+8)
Isolate L by dividing 2x+8:
(4x^2 + 20x +16)/ (2x + 8) = L
If you divide: 
L = 2x + 2.
7 0
3 years ago
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