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Savatey [412]
4 years ago
9

Indicate what operation or operations each problem calls for; then, solve the problem.

Mathematics
1 answer:
Bumek [7]4 years ago
6 0
1) <span>Mount Rainier is 14,410 feet high. Mount McKinley is 20,320 feet high. How much taller is Mount McKinley?

</span>requires subtraction operation
Mount Rainier is ---------------------------14,410 feet high
Mount McKinley is -------------------------20,320 feet high

20320-14410=5910 feet hight
Mount McKinley is 5910 feet hight much taller

2) <span>If Babe Ruth averaged 46 home runs per year, how many home runs did he hit in 12 years?
</span>requires multiplication operation
46 home runs per --------------------year
X----------------------------------------12 year
x=12*46=552 home runs in 12 years

3) What’s the difference between paying $10,000 cash for a car or paying a loan of $200 per month for 60 months?

requires multiplication operation
requires subtraction operation

paying  cash------------------------------------------------------$10,000 
 $200 per month for 60 months----------------------200*60=$12,000 
12000-10000=$2000
the difference is $2000

4) 
<span>Ken sold $700 worth of digital cameras, $2,394 worth of laptops, and $833 worth of vacuum cleaners. Digital cameras cost $175 each, laptops cost $399 each, and vacuum cleaners cost $119 each. If Ken earns a $35 commission for each sale, how much did he earn in commissions in all?

</span><span>requires division operation
</span>requires multiplication operation
requires sum operation


 digital cameras------------------------$700/175=4-------4*35=$140
laptops-------------------------------------$2394/399=6-----6*35=$210
vacuum cleaners------------------------$833/119=7------7*35=$245
he earn in commissions-----------140+210+245=$595


5) A parking garage owner has spaces for 70 cars and charges each driver $6 per day for parking. If the garage is full, how much more would the garage owner make if he charged $8 per day?

requires multiplication operation
requires subtraction operation

 70 cars*6=$420
70 cars*8=$560
560-420=
$140


6) Regina has $25 to buy groceries. She needs 3 cans of dog food, a gallon of milk, 5 pounds of chicken, a box of cereal, and 6 rolls of paper towels. The prices of the items are as follows: dog food—$1.50 a can; milk—$4 a gallon; chicken—$1.55 a pound; cereal—$2.75 a box; paper towels—99 cents a roll. Will Regina have enough money for all the items she needs? If not, how much more will she need?

requires multiplication operation
requires sum operation

3 cans of dog food----------------------$1.50*3=4.50
1 gallon of milk-------------------------$4 *1=4
5 pounds of chicken----------------$1.55*5=7.75
1 box of cereal,---------------------$2.75*1=2.75
6 rolls of paper---------------------$0.99*6=5.94

total=4.50+4+7.75+2.75+5.94=24.94

24.94<25 Regina have enough money for all the items 
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Answer:

The null hypothesis will be that the average annual donor income is less or equal to $ 100,000

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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