Expression of a variable from the formula - 7th grade (12y) - math problems
Number of problems found: 247
Given 2x =0.125 find the value of x
- Value of expression
X=2, y=-5 and z=3 what is the value of x-2y?
Expression (3a-7).(3a+7) is identical with: ?
- Unknown number 17
Milada said, I am thinking of a number such that I evaluate expression x1/3, the value of the expression would be 5. Which number Milada thinking?
The hotel has a p floors each floor has i rooms from which the third are single and the others are double. Represents the number of beds in hotel.
- Simplify 2
Simplify expression: 5ab-7+3ba-9
Which decimals when subtracted equal 3.89: a - b = 3.89
- Rectangle from string
String 12m. Make rectangle when one side is two times longer than its width.
- Thousand balls
We have to create a thousand balls from a sphere with a diameter of 1 m. What will be their radius?
- Simple equation 3
24 = n • 27, solve for n
- 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?
- Perimeter to area
Calculate the area of a circle with the perimeter 15 meters.
- Price increase
A 20 percent price increase meant a 90-crown raise. How many cost a product after?
- Circle r,D
Calculate the diameter and radius of the circle if it has length 26.59 cm.
- Area to perimeter
Calculate circle circumference if its area is 254.34cm2
- Circle - simple
The circumference of a circle is 198 mm. How long in mm is its diameter?
- Diagonal of square
Calculate the side of a square when its diagonal is 10 cm.
Find the radius of the circle with area S = 200 cm².
- Unknown number
Determine the unknown number, which double of its fourth square is equal the fifth its square.
- Cube basics
How long is the edge length of a cube with volume 15 m3?
Expression of a variable from the formula - math word problems. Examples for 7th grade (seventh).