Chemistry, 18.09.2019 22:50 uchechukwueigwe

1. replace ? with a whole number to make the statements true.
a. 20 ÷ 4 ? means ? × 4 = 20
b. 2,725 ÷ 5 ? means ? × 5 = 2,725
c. ? ÷ 5 = 0
2.abc preschool spent $1,475 on diapers this year. if the diapers cost $25 per box, how many boxes did they use?
3.grace, a hairdresser, charges $18 for a haircut and $70 for a perm. she did 36 perms this month. the total amount of money grace took in was $4,608. how many haircuts did grace do this month?
4.mr. and mrs. wilson hosted their daughter’s wedding. they paid $575 to rent a banquet hall and $13 per person for a catered dinner. in all, there were 118 people at the wedding. how much did the wilsons pay for the hall and the food? use inverse operations to check your answer.
5.carmel can drive 320 miles on one tank of gas, and one tankful costs $39. how many tanks of gas will she need to drive 2,240 miles, and how much will it cost? use inverse operations to check your answer.

Answers: 1

Show answers

Another question on Chemistry

Chemistry, 22.06.2019 04:20

Which of the following is true for the actual yield of a reaction? it is always calculated as a ratio. it is the yield from the excess reactant. it is the yield from the limiting reactant. it is always less than the theoretical yield.

Answers: 1

Answer

Chemistry, 22.06.2019 07:00

Achemist wants to extract copper metal from copper chloride solution. the chemist places 0.50 grams of aluminum foil in a solution containing 0.75 grams of copper (ii) chloride. a single replacement reaction takes place. (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction? a) approximately 0.36 grams, because copper (ii) chloride acts as a limiting reactant b) approximately 1.8 grams, because copper (ii) chloride acts as a limiting reactant c) approximately 0.36 grams, because aluminum acts as a limiting reactant d) approximately 1.8 grams, because aluminum acts as a limiting reactant

Answers: 3

Answer

Chemistry, 23.06.2019 00:30

Five different substances are given to you to be dissolved in water. which substances are most likely to undergo dissolution in water? check all that apply. view available hint(s) check all that apply. sodium fluoride, naf octane, c8h18 propanol, ch3ch2ch2oh potassium iodide, ki benzene, c6h6

Answers: 1

Answer

Chemistry, 23.06.2019 05:30

Suppose you discovered a new element with 120 protons and 2 electrons in its outer level . i'm what group does this new element belong? what properties would you expect it to have

Answers: 1

Answer

You know the right answer?

1. replace ? with a whole number to make the statements true.
a. 20 ÷ 4 ? means ? × 4 = 20...

Questions