3 years ago

Help only have 5 mins

Mathematics

1 answer:

stepladder [879]3 years ago

6 0

4
2.5 -5 that should be it i believe

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Simplify 2m - [n - (m - 2n)]. -3m - n 3m - n -3m - 3n 3m - 3n

zhenek [66]

Answer:

3m-3n

Step-by-step explanation:

We want to simplify the expression;

2m - [n - (m - 2n)].

We expand the parenthesis to obtain;

2m - (n - m + 2n)

2m - ( - m + 3n)

Expand further to get;

2m +m -3n

Combine the first two terms;

3m-3n

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3 years ago

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Find the measure of angle x in the figure below:

FinnZ [79.3K]

x=180-(65+65)

x=180-130

x=50

A=(4*5)/2

A=20/2=10

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3 years ago

Group of numbers related to an operation, such as 7,8 and 15, is called a ___ family.

ollegr [7]

It is called a fact family I believe

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a parade departs from city hall and finishes at at park. on a map, the parade route is 7 inches long. the map uses a scale of 1

il63 [147K]

7 miles

Explanation: If 1 inch = 1 mile, then 7 inches is 7 miles.

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2 years ago

120 meals to 52 meals what is the percentage change?

Oksi-84 [34.3K]

Answer: The percentage change is 56.67%.

Step-by-step explanation:

From 120 meals to 52 meals, change in meals = ( 120- 52) meals

= 68 meals

The percentage change = $\dfrac{\text{change in meals}}{\text{Original quantity of meals}}\times100$

$=\dfrac{68}{120}\times100\\\\=56.67\%$

Hence, the percentage change is 56.67%.

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3 years ago