05 Solving a value mixture problem using a system of linear...
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The Turner family and the Chen family each used their sprinklers last summer. The water output rate for the Turner family's sprinkler was 40 L per hour. The
water output rate for the Chen family's sprinkler was 35 L per hour. The families used their sprinklers for a combined total of 45 hours, resulting in a total water
output of 1650 L. How long was each sprinkler used?

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.