Mathematics, 28.07.2019 23:30 michellealvarez985
Astudent solved this problem by working backwards. joani has some stuffed animals. she has 2 times as many as lily. lily has 6 stuffed animals. joanie gave 2 away and bought 4 more. how many stuffed animals does joani have now? students's solution: lily has 6 stuffed animals, so joani had 6 Γ 2 to begin with. so joani had 12 stuffed animals. she gave away 2, so 12 β 2 = 10. she bought 4, so 10 + 4 = 14. so joani has 14 stuffed animals. here is another problem that can also be solved by working backwards. wyatt has 3 times as many baseballs as golf balls. he has 5 fewer tennis balls than baseballs. wyatt has 4 golf balls. how many tennis balls does wyatt have?
Answers: 1
Mathematics, 21.06.2019 21:00
Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1β0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.
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Mathematics, 21.06.2019 21:10
Indicate the formula for the following conditions: p^c(n,r)=
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Mathematics, 22.06.2019 00:00
The equation of line wx is y=2x-5. write an equation of a line perpendicular to line wx in slopeintercept form the contains points (-1,-2)
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