91 Answered Questions for the topic Rates

Rates Ratios

04/23/18

HELP! I don't understand the formula my teacher wants us to use, so I am just trying to figure it out any way I can!
QUESTION: You are using dirt to fill a planter box, and you use 920 grams of dirt to fill 8 inches of the planter box how many inches can you fill using 48.3 KILOGRAMS of dirt
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Rates

04/03/18

sanjay can travel 342 miles in 6 hours. At this rate, how far can he travel in 5 hours
i need this problem done please
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Rates

03/20/18

in 8 hours, alonzo reads 40 chapter of a book.What is his rate in chapter to hours?
 no additional details
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03/17/18

Derivatives - find the rate at which the diameter is increasing when the diameter is 20cm
A spherical balloon is being inflated so that its volume is increasing at the rate of 10cm3/sec. Find the rate at which the diameter is increasing when the diameter is 20cm.
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Rates Derivatives

03/13/18

A man of height 1.5m walks away from a 5-meter lamppost at a speed of 2.7m/s.
Find the rate at which his shadow is increasing in length in m/sec.
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Rates

02/28/18

If an airplane travels at a constant rate of 300 mph, what is speed going into a 25 mph wind
Rates and time
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Rates Unit Rate

01/31/18

what's the rate and unit rate for 72 calls in 12 hours?
Please anwser right away pleaseee. Thanks if u can :)
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01/24/18

Investment rate word problem
Clarence invested $5,000 in Amazon and $3,000 in Google. At the end of the year Clarence earned $1,500 in interest. What interest rate did Clarence receive for each stock if Amazon’s rate was half... more
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11/21/17

What is a unit rete and how do you solve percents
I need help woth knowing an easy way to solve percents and unit rates. Especially when we have different units
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Rates

11/11/17

Jim began a 96 mile bike ride.It took 4 hours. If Jim walks at a rate of 4 mph and rides at a rate of 36mph, find the amount of time spent on the bike
Jim's bike chain broke so he finished the trip walking.
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Rates

11/03/17

A certain map uses a scale of 1inch equals 25 miles. How many miles are represented by 5 inches on this map?
Trying to solve rate problems.  Need help.  
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Rates Interest

11/02/17

How much interest will you pay? How much will the car actually cost you after interest
You just borrowed $23,450 to purchase a Toyota Corolla. The interest is compounded annually at 1.5%. You have three years to pay back the loan.
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Rates Rate

10/22/17

Gabriel can finish a packet of cereal in 6 days. The next packet of identical cereal he shares with his sister Sheila, and the two of them take 4 days to finish
Gabriel can finish a packet of cereal in 6 days. The next packet of identical cereal he shares with his sister Sheila, and the two of them take 4 days to finish the packet. If Sheila alone had been... more
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10/19/17

Brothers Marco and Matthew start riding from home into town, which is 30 km away. Marco rode at 10 km/h and Matthew took 20 minutes longer to complete the trip.
rates question please help. 
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10/12/17

Liza exchanged Canadian dollars for Bahraini dinar. She changed $340 into 117.80. What was the exchange rate of Canadian dollars to Bahraini dinars
$1=           Dinar         
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Rates

10/04/17

Cola is on sale at six bottles for $3.99. Each bottle contains 710 mL of the drink. What is the price per 100 mL when purchased this way?
I’m not sure how to do this question. It is on a challenge page I have and i’d like to figure it out.
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09/13/17

Rates question
Daim can walk at 4 km/h and ride his bike at 20 km/h. He takes 24 minutes less when he rides his bike from his house to the school than he walks. What is the distance, in km, from his house to the... more
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08/30/17

Yolanda and Yoko ran in a 100-yd dash...
a. Yolanda and Yoko ran in a 100-yd dash. When Yolanda crossed the finish line in 15 seconds. Yoko was 10 yards behind her. The girls then repeated the race. With Yolanda starting 10 yards behind... more
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07/31/17

Rates and derivatives
While you were out cross country skiing, you make a perfectly shaped spherical snowball. Unfortunately the temperature increases and the volume of your snowball decreases at a rate of -1cc/min. At... more
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07/20/17

I work two jobs and get paid 11.50 per hour at one and 9.65 per hour at the other. Combining both jobs, what do I get paid hourly ?
I work 8 hour shifts every day at both jobs and ONLY on the weekends do I get paid 9.65. I'm really bad at math lol If I calculate the average it's only $10, which doesn't seem right and that's not... more
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06/18/17

Problems involving rates
A new underground holding tank for storm runoff is going to be built. The new tank will be similar to the current tank. The interior dimensions of the current tank are 100m by 30m by 50m. Engineers... more
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Rates

05/06/17

What is the amount of fuel used by the car on the journey?
a car left at 9:35 am and arrived at 1:05pm on the same day. The average speed of the car was 74 km/h and it used fuel at the rate of 9L/100km
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Rates

05/03/17

a small case of pop, with 12 cans, costs $3.96. a large case has 18 cans. the cost per can in the large case is $0.02 less than in the small case.
what is the cost of the large case
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Rates

05/03/17

last week, tenisha paid $65.72 for 62kg of potatoes for her restaurant. today, the price of the potatoes is $0.02/kg lower.
how much will tenisha pay for 50 kg of potatoes today
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Rates

03/28/17

After knee surgery John walks 1/4 mile in each 1/6 hour, find the rates using a model.
It needes to be answered in a model
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