Expression of a variable from formula - problems - page 29
- The perimeter 3
The perimeter of a rectangle is 35 cm. The ratio of the length to its width is 3:2. Calculate the dimensions of the rectangle
Five employees of the company were paid bonuses so that each successor received a 550 USD less than the previous employee. How much did everyone get, if a total of USD 11,000 has paid?
Simplify expression - which expression is equivalent to: 3(m + 2) − 4(2m − 9)
Three-quarters of boats are white, 1/7 are blue and 9 are red. How many boats do we have?
- Sides of triangle
Triangle circumference with two identical sides is 117cm. The third side measures 44cm. How many cms do you measure one of the same sides?
- Completing square
Solve the quadratic equation: m2=4m+20 using completing the square method
- Find the 7
Find the number that is smaller than 5 5/12 by as much as 2 2/13 is smaller than 6 1/6
- Evening shift
While working the evening shift, Officer K took 8 hours to complete a task at his work station and Officer M took 10 hours to complete the same task at his work station. How many hours would it take Officer K and Officer M to complete the same task working
- Substitution method
Solve goniometric equation: sin4 θ - 1/cos2 θ=cos2 θ - 2
Which decimals when subtracted equal 3.89: a - b = 3.89
- A report
Maricris can type a committee report in 5 hours. Jane helped Maricris and together they finished the report in 3 hours. How long would it take Jane to complete the report she had worked alone?
- Lateral surface area
The ratio of the area of the base of the rotary cone to its lateral surface area is 3: 5. Calculate the surface and volume of the cone, if its height v = 4 cm.
- Rectangle 45
The perimeter of a rectangle is 60cm. If the length of the rectangle is 20cm. a)find the width b)find the area.
Given 2x =0.125 find the value of x
- Number of songs
Write an expression for the number of songs they need for this show. Evan and Peter have a radio show that has 2 parts. They need 4 fewer than 11 songs in the first part. In the second part, they need 5 fewer than 3 times the number of songs in the first p
A map is placed on a coordinate grid. Cincinnati located at (5,4) and San Diego is located at (-10, -3). How far apart is Cincinnati from San Diego on the map? Round to the nearest tenth.
- Greg and Bill
Greg is 18 years old. He is 6 less than 4 times Bill's age. How old is Bill?
- Workers 9
If two workers fix two windows in an hour how many windows can 18 workers fix in the same two windows?
- Former price
The price of an article is cut by 10℅, to restore it to the former value, by what percent the new price must be increased?
- A photograph
A photograph will stick to a white square letter with a x cm length. The photo is 3/4 x cm long and 20 cm wide than the width of the paper. The surface of the remaining paper surrounding the photograph is 990 cm2. Find the size of paper and photo.