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My name is Ann [436]
2 years ago
13

You can buy 20 fluid ounces of shampoo for 4.40 or 24 fluid ounces for 4.80 which is the better buy? Explain

Mathematics
1 answer:
ollegr [7]2 years ago
7 0

Answer:

20 for 4.40

Step-by-step explanation:

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The dinosaur's tail bones are at the solution point to the system of equations below.
beks73 [17]

Answer:

x = 41

y = 24

Step-by-step explanation:

Systems of equations is,

-2x - 7y = -250 ------(1)

4x - y = 140 ------(2)

Equation (1) multiplied by 2 then added to equation (2)

 -4x -14y = -500

(+)   4x - y = 140  

         -15y = -360

            y =

           y = 24

by putting y = 24 in equation (2),

4x - 24 = 140

4x = 140 + 24

x =

x = 41

For x = 41 and y = 24 both the equations are true.

Equation (1),   -2(41) - 7(24) = -250  [True]

Equation (2),   4(41) - (24) = 140  [True]

Step-by-step explanation:

6 0
2 years ago
Every hour, a runner is able to run the same number of miles. If on his 3rd hour of
Molodets [167]

Answer:

a) 10 miles per hour

Step-by-step explanation:

8 0
3 years ago
Katie runs 3 miles in 28 minutes. At this pace, how long will it take her to run 13.1 miles? Round to the nearest minute.
klemol [59]

Answer:

122.6 min

Step-by-step explanation:

3 miles = 28 min

13.1 miles=x

28min x 13.1 miles=366.8/3=122.6 min

6 0
2 years ago
Read 2 more answers
A bag contains 10 black, 15 white, and 25 blue marbles. What is the probability of randomly selecting one
gulaghasi [49]

Answer: 0.8 or 80%

Step-by-step explanation:

First find the total number of marbles:

10 + 15 + 25 = 50 marbles total

To find the number of marbles that are not black:

15 + 25 = 40 marbles that are not black

Set up ratio:

\frac{40}{50} = 0.8 or 80%

4 0
2 years ago
choose two numbers from the list 3,4,6,12. Explain the difference between finding the greatest common factor and the least commo
zepelin [54]
3 & 6 - LCM = 3. 3's multiples are 3, 6, 9,12, 16, etc. 6's multiples are 6, 12, 18, etc. therefore, the least common multiple is 6.
GCF - 3's factors are 1, 3, and 6's factors 1, 2, 3. so the greatest common factor is 3.

6 0
3 years ago
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