# Expression of a variable from the formula - 8th grade (13y) - math problems

#### Number of problems found: 523

- Simplify

Simplify expression - which expression is equivalent to: 3(m + 2) − 4(2m − 9) - Expressions

Expression (3a-7).(3a+7) is identical with: ? - Value of expression

X=2, y=-5 and z=3 what is the value of x-2y? - Simplify 2

Simplify expression: 5ab-7+3ba-9 - Unknown number 17

Milada said, I am thinking of a number such that I evaluate expression x^{1}/3, the value of the expression would be 5. Which number Milada thinking? - Which

Which decimals when subtracted equal 3.89: a - b = 3.89 - Even / odd numbers

a / Using variable n write two consecutive odd numbers. b / the sum of three consecutive odd numbers is 333. What are this numbers? - The quotient 2

The quotient of the quantity k minus 10 and m - Linear function

Using one of the following forms x+p=q or px=q write an to represent these problems using x as the unknown variable Larry ran 7 more miles than Barry in a month, if Larry ran 20 miles how many did Barry run? please help its due tomorrow - Midpoint 5

FM=3x-4, MG=5x-26, FG=? Point M is the midpoint of FG. Use the given information to find the missing measure or value. - Sales off

The price has decreased by 20%. How many percents do I have to raise the new price to be the same as before the cut? - Simple equations

Solve system of equations: 5x+3y=5 5x+7y=25 - Cross five

The figure on the picture is composed of the same squares and has a content of 45cm². What's its perimeter? - Finding the base

Find the unknown base of percent: 12.5 percent of what = 16? - Marriage sttus

In our city, there are 3/5 of the women married to 2/3 of the men. Find what part of the population is free. - Greg and Bill

Greg is 18 years old. He is 6 less than 4 times Bill's age. How old is Bill? - Circle r,D

Calculate the diameter and radius of the circle if it has length 26.59 cm. - Mean

A student food the mean of 50 items as 38.6. When checking the work he found that he had taken one item as 50 why it should correctly read as 40 in this circumstances. What should be the correct mean? - Lions

If 8 lions is 40% how many would 75% be? - Find the

Find the surface of the cuboid if its edges have the dimensions a, 2/3a, 2a

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Expression of a variable from the formula - math word problems. Examples for 8th grade.