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grin007 [14]
3 years ago
10

Bill hikes 8 miles in 3 hours. At this rate. how many miles will he hike after 2 hours?

Mathematics
2 answers:
kompoz [17]3 years ago
8 0

Answer: 5 \frac{1}{3} miles

For the rate of 8 miles in 3 hours, you divide.

For the rate of - miles in 2 hours, multiply.

8 x 2 = 3x

16 = 3x

Now, we have to divide by 3x by 3.

3x divided by 3 = 5 1/3

Answer = 5 1/3

exis [7]3 years ago
6 0

Answer:

5 1/3 miles

Step-by-step explanation:

We can use a ratio to solve

8 miles      x miles

------------ = --------

3 hours         2 hours

Using cross products

8*2 = 3x

16 = 3x

Divide by 3

16/3 = 3x/3

5 1/3 miles =x

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The expression 2.5a+2b gives the cost (in dollars) for a DVDs and b CDs at a moving sale. a. The cost for 1 DVD is $ and the cos
Mekhanik [1.2K]

Answer/Step-by-step Explanation:

Given:

a = no. of DVDs

b = no. of CDs

Total cost ($) for DVDs and CDs = 2.5a + 2b

a. The cost for 1 DVD = 2.5(a) = 2.5(1) = $2.5

The cost for 1 CD = 2(b) = 2(1) = $2

b. Total cost for 4 DVDs and 4 CDs:

Substitute a = 4, and b = 4 into the equation.

2.5(4) + 2(4)

10 + 8 = 18

Total cost for 4 DVDs and 4 CDs = $18

c. To find out if $20 would be enough to buy 6 DVDs and 3 CDs, substitute a = 6, and b = 3 into the equation. Solve for the total cost to see if it equals $20 or is less than $20. If it's greater than $20, then it won't be enough.

2.5(6) + 2(3)

15 + 6 = 21

6 DVDs and 3 CDs cost more than $20, therefore, $20 is not enough.

5 0
3 years ago
What is the equation of the line –3x – 2y = 30 in slope-intercept form?
leonid [27]
-3x-2y=30
-2y=3x+30
y=-3/2x-15



the answer is y=-3/2x-15
4 0
3 years ago
One angle of a triangle measures 100°. the other two angles are in a ratio of 3:5. what are the measures of those two angles?\
Kipish [7]
Sum of those two angles = 180 - 100 = 80
Now, Total ratio = 3 + 5 = 8
Amount of 1 unit = 80 / 8 = 10
Angle measures: = 3(10) & 5(10) = 30, 50

In short, Your Answer would be 30 & 50

Hope this helps!
3 0
3 years ago
Simplest form of 21/56
qaws [65]
Divide both the numerator and the denominator by 7, that would give you ⅜
8 0
3 years ago
Read 2 more answers
the expression 9a + 6s is the cost for a adults and s students to see a musical performance. Find the total cost for three adult
Arlecino [84]
A = # of adults = 3
s = # of students = 5

9(3) + 6(5) =
27 + 30 =
57
4 0
3 years ago
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