# Equation - 9th grade (14y) - math problems

#### Number of examples found: 708

- Fifth of the number

The fifth of the number is by 24 less than that number. What is the number? - Mean

if the mean of the set of data 5, 17, 19, 14, 15, 17, 7, 11, 16, 19, 5, 5, 10, 8, 13, 14, 4, 2, 17, 11, x is -91.74, what is the value of x? - Unknown number 23

Find 2/3 of unknown number, which is two thirds of the 99. - Equation with abs

Solve this equation with absolute value member: ? - The larger

The larger of two numbers is nine more than four times the smaller number. The sum of the two numbers is fifty-nine. Find the two numbers. - Substitution

solve equations by substitution: x+y= 11 y=5x-25 - Perctentages

35% of what number is 35? - Algebrogram

Solve algebrogram: mama+anna=vari How many solutions are? - Percent

Calculate how many % is the number 26.25 less than the number 105. - Honza

Honza is 13 years old and Peter 21 years old. After how many years are their ages will be at ratio 7: 9? - ATC camp

The owner of the campsite offers 79 places in 22 cabins. How many of them are triple and quadruple? - Girls

The children's competition was attended by 63 girls, which is 30% of all children's participants. How many children attended this competition? - Pure quadratic equation

Solve pure quadratic equation ?. - Equation - inverse

Solve for x: 7: x = 14: 1000 - Pupils

There are 350 girls in the school, and the other 30% of the total number of pupils are boys. How many pupils does the school have? - Viju

viju has 40 chickens and rabbits. If in all there are 90 legs. How many rabbits are there with viju?? - Father and son

Father is 48 years old, son 23. When will be the father twice older than a son? - Radius

Determine the radius of the circle, if its perimeter and area is the same number. - Equation

How many real roots has equation ? ? - Percentage reduction

Reducing the unknown number by 19% get number 700.7 Determine unknown number.

Do you have an interesting mathematical word problem that you can't solve it? Submit a math problem, and we can try to solve it.