Isolating a variable in the formula - math word problems - page 118 of 145

Number of problems found: 2883

Calculate 4689
The area of the rotating cone shell is 240 cm², and the area of its base is 160 cm². Calculate the volume of this cone.
Mixture 4673
We add 4 kg of tea to 2 kilograms of tea for 15 €, and we get the mixture for 12 €. How much is kg of second tea?
Trapezoid - central median
The central median divides the trapezoid into two smaller trapezoids. Find the ratio of its areas.
Parallelogram
Calculate the unknown side of a parallelogram if you know the perimeter o and one side: a) o = 7.2 cm; b = 1.8 cm b) o = 5.4 cm; a = 1.9 cm
Rhombus
One angle of a rhombus is 136°, and the shorter diagonal is 8 cm long. Find the length of the longer diagonal and the side of the rhombus.
Exchanged 4627
Mr. Sova had a plot of land with an area of 3600 m². However, he exchanged it for another square plot, which was 5 m larger. How many m² does the larger land now have?
Rectangular trapezoid
The rectangular trapezoid ABCD is: /AB/ = /BC/ = /AC/. The length of the median is 6 cm. Calculate the circumference and area of a trapezoid.
Elements
If the number of elements is decreased by two, the number of permutations is decreased 30 times. How many elements are?
Rectangle
The rectangle has a perimeter of 75 cm. The diagonal length is 32.5 cm. Determine the length of the sides.
Kilometers 4614
The car is traveling at 130 km/h. a / How many hours will it help the car drive for kilometers? b / How many kilometers will the car travel in h hours?
Three-quarters 4613
Matej deposits k euros in the bank per month. After each year, the bank credits him with three-quarters of the monthly deposit. How many euros will Matěj have in his account after a / year, b / y years?
Alley
Alley measured a meters. At the beginning and end are planted poplar. How many must we plant poplars to get the distance between the poplars 15 meters?
Airports 4605
Regular planes fly between the two airports 690 km away. The aircraft takes off from the first airport at 6:30 am at an average speed of 60 km/h faster than the aircraft taking off at 7.00 am from the second airport. The planes always meet at 9.00 am. At
Kilometers 4604
The tourist traveled 78 km in three hours. For part of the journey, he traveled by bus at an average speed of 30 km/h, and for the rest, he walked at an average speed of 6 km/h. How long did he walk, and how many kilometers did he walk?
The rope
A 68-centimeter-long rope is used to make a rhombus on the ground. The distance between a pair of opposite side corners is 16 centimeters. What is the distance between the other two corners?
Ratio iso triangle
The ratio of the sides of an isosceles triangle is 7:6:7. Find the base angle to the nearest answer correct to 3 significant figures.
Surface and volume
What is the volume of a sphere with a surface area of 113.04 square meters?
Calculate 4582
Calculate the surface of a sphere whose volume is 33.9 cm cubic.
Prescribed 4579
The racing ball for men has a prescribed weight of 7250g. It is made of iron. How does its diameter change if we make it from lead? The density of iron is 7.8 g / cm cubic, and the density of lead is 11.3 t / m cubic.
Rectangular 4567
The rectangular flower garden fencing is 57.6 m long. If you know its dimensions are in a 5:7 ratio, find them.

Do you have homework that you need help solving? Ask a question, and we will try to solve it. Solving math problems.