MATHEMATICS HIGH SCHOOL

The sum of twice a number and 10 is 36

Answers

Answer 1

Answer: 2x+10=36
X=13
Subtract 10 from both sides then divide x

Answer 2

Answer:

Final answer:

To solve the equation, subtract 10 from both sides and divide by 2 to find the value of x.

Explanation:

To solve this problem, we need to set up an equation using the given information. Let's assume the number is x. We can translate the phrase 'twice a number' into the expression 2x. The equation becomes:

2x + 10 = 36

Next, we can solve for x by subtracting 10 from both sides:

2x = 26

Finally, we divide both sides by 2 to isolate x:

x = 13

Learn more about Equations here:

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What is the value of the expression?
25 – 4 + (40 ÷ 20)5

Answers

25 - 4 + (40 ÷ 20)5 = 31

Round the answer to the nearest cent.

A 30% discount on $47.50 is $

Answers

Let's find out how much is the 30% discount to 47.50 dollars.
=> 30% = 30% /100 = .30
Now, multiply this decimal to the given amount in dollars.
=> 47.50 dollars * .30 = 14.25 dollars
Thus the 30% discount of 47.50 dollars is 14.25 dollars.

A rectangular room is four times as long as it is wide, and its perimeter is 70 meters. Find the width of the room.