# Examples of equations for 9th grade (14y)

#### Number of problems found: 924

• Sharing money A certain sum of money is shared in the ratio 2 :3:9. If the difference between the first and the second is \$40, then the amount of money shared is
• Gas prices 2021 According to the SPP price list in 2021, the price of natural gas together with its supply is as follows: D1 - we cook. Fix 3.34 euros/month and 0.0479 euros/kWh (1 cubic meter of gas is approximately 10.555 kWh. It is called combustion heat and changes o
• The width The width of a rectangular garden is 4 m less than the length. If the area of a rectangular garden is 96 square meters, what is the dimension of the garden?
• Given 2 Given g(x)=x2+x+1 where x=t2. What is g(t²)?
• Two numbers One number is by 79 larger than the other. If we divide the larger number by the smaller one, we get the ratio 5 and the remainder 11. Determine both numbers.
• Regular price The sale price of a television set is 7200. The discount rate is 40%. Find its regular price.
• Points OPQ Point P is on line segment OQ. Given OP = 6, OQ = 4x - 3, and PQ = 3x, find the numerical length of OQ.
• The ratio 4 The ratio of two number 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 that has a greater proportion of short-term fixed costs and another that is more heavily weighted to variable costs. Estimated revenue and cost data for each alternative
• Using Using the point-slope equation, find the equation containing (-7, 3) and slope m = -4
• Two fifth Two fifth of the worker in a factory are men. The rest are women. If there 28 men . how many more women than men are there?
• 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 Gymnasium is 7:9. If there are 512 pupils, how many pupils are male?
• Mrs. Zarka Mrs. Zarka has 3 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?
• Boys and girls 8 In a class of 35 boys and girls that has a ratio of 2:5, 5 boys are absent and 5 boys are present. How many students are present?
• Boats 2 Three quarters of the boats in the marina are white 4/7 of the remaining boats are blue, rest are red if there are 9 red boats. How many boats are in the marina?
• Limousine rent Hana rented a limousine for prom. There was a one-time charge of \$100, plus an hourly rate of \$45. Her total cost for the night was \$347.50. How many hours did Hana rent the limo for?
• 6 plates 6 plates and 5 cups cost 37.50 dollars. 7 plates and 6 cups 44.10 dollars. Each plate costs the same amount as the other cup. What is the cost of 1 plate? What is the cost of 1 cup?
• Deposit Oh I total of \$15,000 deposited into simple interest accounts the annual simple interest rate on one account at 6% the annual simple interest rate on the second account at 7% how much should be invested in each account so that the total interest earned is
• Wheel gear A drive wheel of radius 2 is connected to a drive wheel of radius 1 by a pulley of length 17. What is the distance between the wheel axles?

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