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sergiy2304 [10]
3 years ago
7

Sarah has 6 more marbles than Jane. Two times Jane's plus 3 times Sarah's is 68. How many marbles does Jane have?

Mathematics
2 answers:
Brums [2.3K]3 years ago
4 0

Answer:

answer is 10

Step-by-step explanation:

monitta3 years ago
3 0

Answer:

10

Step-by-step explanation:

Construct the equation

Let S=Sarah J=Jane

S=J+6

2J+3S = 68

Using substitution you can get

3(J+6)+2J = 68

5J + 18 = 68

5J = 50

J= 10

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4 0
3 years ago
Today joelle walked at a rate of 3 miles per hour and she ran 15 minutes at a rate of 6 miles per hour.How many total miles did
svetoff [14.1K]
I added a screenshot with the complete question

<u><em>Answer:</em></u>
Total miles = 2.5 miles

<u><em>Explanation:</em></u>
<u>1- While walking:</u>
We are given that Joelle walked 20 minutes at a rate of 3 miles per hour.
This means that she walked \frac{20}{60} =  \frac{1}{3} of an hour at a rate of 3 miles per hour
The formula that relates distance, time and velocity is:
Distance = velocity * time
<u>Substitute with the givens to get the distance she covered while walking:</u>
Distance = 3 * \frac{1}{3} = 1 mile

<u>2- While running:</u>
We are given that Joelle ran 15 minutes at a rate of 6 miles per hour
This means that she ran \frac{15}{60} =  \frac{1}{4} of an hour at a rate of 6 miles per hour
The formula that relates distance, time and velocity is:
Distance = velocity * time
<u>Substitute with the givens to get the distance she covered while running:</u>
Distance = 6 * \frac{1}{4} = 1.5 miles

<u>3- getting the total mileage:</u>
Total distance she covered = distance while walking + distance while running
Total distance she covered = 1 + 1.5
Total distance she covered = 2.5 miles

Hope this helps :)

4 0
3 years ago
Round 548.8 to the nearest thousand.
mote1985 [20]

Answer:

The answer is 1,000

8 0
3 years ago
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