MATHEMATICS MIDDLE SCHOOL

2. Which value below is a perfect square?
(1 Point)
12
49
5
20

Answers

Answer 1

Answer:

49 is a perfect square since 7 times 7 is 49

Answer 2

Answer:

Answer:

Step-by-step explanation:

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A serving of cottage cheese is 2/3. Vanessa has 7/8 cup. How many servings does she have?
Which is a factor of each term of the polynomial? (3d2 – 10d)

20% of a number is x. What is 100% of the number?
Assume x > 0.

Answers

y - the number

$20\% y=x \ \ |* 5 \n100\%y=5x$

5x is 100% of the number.

Final answer:

To find 100% of the number, when given 20% of the number is x, you would divide x by 0.20 or multiply x by 5. Thus, the entire number is 5x, for x > 0.

Explanation:

In the given question, 20% of a number is represented as x. To find 100% of the number, or the total number itself, we need to set up a simple proportional equation. First, we equate the knowns. Therefore, 20%x is equal to 100% of the unknown number.

So, let's set up the equation: 20%/100% = x/number.

By simplifying this equation, you can calculate the complete number by dividing x by 0.20, or in other words, multiplying x by 5.

If and only if x > 0, the total number is therefore 5x.

Learn more about Percentage Calculation here:

brainly.com/question/32197511

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Two equations are shown: Equation 1: (x –12) =12
Equation 2: y – 12 = 12
Solve each equation

Answers

x-12=12, x=24, 24-12=12
y-12=12 y also =24

$x-12=12$
$x=12+12$
$x=24$

$y-12=12$
$y=12+12$
$y=24$

The answer is: a=24 y=24

Which one is an expression of distance in SI units?a. 24 feet
b. 500 meters
c. 30 miles
d.16 kilograms

Answers

The SI unit for distance is the meter so D is your answer. :D

expression of distance in SI units will be sure the choice b. so 500 meters
just bc. the distance is measured in meters

hope helped

Name a real world example of something that has a mass that can be measured with a metric unit

Answers

One thing can be a stapler.(hope this helps!)

Marge has saved $350 toward the costof her vacation. The vacation will cost
$1,750. What percent of the cost of the
vacation has Marge saved?
Show all work!!!

Answers

She has saved 20% so far.
350 / 1,750 = .2

Kevin has 9 stamps that have the image of a boat on them.If this is the 30% of the total collection of stamps Kevin has, how many stamps does he have?

Answers

you would use proportions for it so because percents are always out of 100 it would be 30/100 and part of the stamps are 9 when doing that think of the ratio as part/whole so it would be 9/x there for the equation would be 30/100 =9/x
then you would cross multiply so the new and improved equation is 900= 30x
divide by 30 and you get 30
Kevin has 30 stamps in total

Answer:

He now has 30 stamps

Step-by-step explanation:

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