Examples of equations for practice for 13 year olds - page 26 of 98
Number of problems found: 1958
- Taken away from number
18 is taken away from 8 times of a number is 30. Find the number. - Points OPQ
Point P is on line segment OQ. Given OP = 6, OQ = 4x - 3, and PQ = 3x, find the numerical length of OQ. - Oversized 53431
Behind the vehicle with an oversized load, which moves at an average speed of 16 km/h, they sent a second escort vehicle 2.5 hours later, which travels at an average speed of 70 km/h. At what time and at what distance does this vehicle reach the oversized - The ratio 4
The ratio of two numbers is 5:4. If 40% of the first number is 12, what will be 50% of the second number?
- Cost structure
You are currently trying to decide between two cost structures for your business: one with a greater proportion of short-term fixed costs and another more heavily weighted to variable costs. Estimated revenue and cost data for each alternative are as foll - Two numbers 11
The sum of two rational numbers is (-2). If one of them is 3/5, find the other. - Using
Using the point-slope equation, find the equation containing (-7, 3) and slope m = -4 - Two fifth
Two-fifths of the worker in a factory are men. The rest are women if there are 28 men. How many more women than men are there? - Equivalent equation
Which equation, when solved, results in a different value of x than the other three? A. - (7)/(8) x - (3)/(4) = 20 Negative 7/8 x minus three-fourths = 20 B. (3)/(4) + (7)/(8) x= -20 Three-fourths + 7/8 x = negative 20 C. - 7 (1)/(8)x - 3/4 = 20 Negat
- Language test
Your language test scores are 58, 68, 89, and 95. What is the lowest you can earn on the next test and still achieve an average of at least 79? - The ratio 3
The ratio of male pupils to female pupils in the Gymnasium is 7:9. If there are 512 pupils, how many pupils are male? - Mrs. Zarka
Mrs. Zarka has three pies for a party. She calculates that if she splits the pies evenly among the guests, they will each receive 1/6 of a pie. How many guests are there? - Jigsaw puzzle
Krista has used 4/5 of the pieces in his jigsaw puzzle. He has used 120 pieces. How many pieces are in the whole puzzle? - Boys and girls 8
In a class of 35 boys and girls with a ratio of 2:5. 5 boys are absent, and five boys are present. How many students are present?
- Half of 2
Half of Ethan's string is equal to 2/3 of Kayla's string. The total length of their strings is 10 feet. How much longer is Ethan's string than Kayla's? - If-then equation
If 1/2 + 2/5s = s - 3/4 What is the value of s? - What is 9
What is the value of x in the proportion of 2 and one-fourth over x = 1 and one-half over 3 and three-fifths? 2 and two-fifths 5 and two-fifths 8 and 1 over 10 12 and 3 over 20 - Simple linear equation
What is the solution to the equation 70 = 1.4y? - Boats 2
Three-quarters of the boats in the marina are white. 4/7 out of the remaining boats are blue, and the rest are red if there are nine red boats. How many boats are in the marina?
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