Equation - 5th grade (10y) - math problems
- Equation with one variable
Solve the following equation with one unknown: 5(7s + 5) =130
The new phone was discounted by 2800kč. After this discount, 5 phones cost 5530 CZK more than 3 phones before the discount. How much did the phone cost before the discount?
I'm a primary school pupil. I attended the exercises of parents with children 1/4 of my age, 1/3 for drawing, and 1/6 for flute. For the first three years of my life, I had no ring, and I never went to two rings at the same time. How old am I?
- Father and sons
Father is 27 and his sons 2 and one year. In how many years will his sons sum up to half his age?
The twins Nina and Ema have five years younger brother Michal. Together have 43 years. How old is Michal?
- The fruit basket
The fruit basket is five times heavier than the empty basket. Filled is 20kg heavier than empty. Determine the weight of the fruit in the basket.
- Dividing money
Vilem, Cenek, and Edita divided the money they earned by spreading the leaflet. Vilem got 240 CZK more than Cenek and twice more than Edita. Edita got 400kc less than Vilem.
- Brother and sister
When I was 8, my sister was 4, now I am 18, how old is my sister?
- Six te 2
If 3t-7=5t, then 6t=
If A=2 B=3 evaluate expression A(B+A) and multiply it by A
- 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
- Seven times
Which number seven times is just as higher as 27, how much is smaller than 29?
- The rod
The rod has a length of 90cm. Half is painted blue, the third is red and the rest is yellow. How long is the yellow part of the rod?
3400 eggs sliced hens for February and March. We have to calculate how many hens can make 3400 eggs when one hen give 2 eggs a day for 59 days.
- The average
The average of one set of 4 numbers is 35. The average of another set of number is 20. The average of the numbers in the two sets is 30. How many numbers are there in the other set?
- Discount sale
After the discount, the computer costs 9600, - CZK. How much did it cost when the price was reduced: a) by half b) by a third c) by one fifth and then by 160 CZK
- One kilogram
The apple weighs 125 grams and half apple. How many apples weigh 1 kilogram?
- The third
The one-third rod is blue, one-half of the rod is red, the rest of the rod is white and measures 8 cm. How long is the whole rod?
There were only chairs and table in the clubhouse. Each chair had four legs, and the table was triple. Scouts came to the clubhouse. Everyone sat on their chair, two chairs were left unoccupied, and the number of legs in the room was 101. How many chairs
- Buns and toasts
Two buns weigh 10 grams more than two toasts. One Bun and two Toast weigh a total of 110 grams. How many grams weigh three toasts? How many grams does a Bun weigh?
Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?