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bogdanovich [222]
3 years ago
11

Guy decides to get in shape by running. The first day, he runs 1 mile in 12 minutes. Two months later he has decreased

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
5 0

Step-by-step explanation:

in two months

Decrease of 25%

so you need to do

25%*12 is 3 minutes

Find the difference from 12 minutes

12-3 is 9 minutes.

therefore, his mile time is 9 minutes in two months

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zlopas [31]
The easiest way to do this is to plug in the numbers for the variebles and see if they equal the same in both sides. lets try the first one 5(1)+2(-3)=-1, multiply the nmbers to get 5-6=-1 now simplify to get the answer of -1=-1, they both equal the same so this means that the first option is the correct one

Hope this helps
4 0
4 years ago
Read 2 more answers
HELP ME ASAP for 37 points!! which expression is equivalent to 14.5d+8.5-1/2d+1/2+2.5d
lina2011 [118]

Equivalent expressions are expressions with equal values

The equivalent expression is 16.5d+9

<h3>How to determine the equivalent expression</h3>

The expression is given as:

14.5d+8.5-1/2d+1/2+2.5d

Express the fractions as decimals

14.5d+8.5-0.5d+0.5+2.5d

Collect like terms

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Evaluate the like terms

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Read more about equivalent expressions at:

brainly.com/question/2972832

7 0
2 years ago
A teachers desk is 5.5 meters long a students desk is 220 centimeters long what is the difference in the length in centimeters b
Mama L [17]

so if 5.5 is in meter let change it to cm because the question want us to give the answer in cm.

1cm = 0.01meter

to \: turn \: meters \: into \: \\  cm \: we \: have \: to \: multiply \:  by \: 100

now we multiply 5.5 times 100 which is equal to 550.

next we subtract 550 - 220= 330.

finally, the difference between a teacher and student is 330cm .meaning the teacher's desk is 330 cm longer or taller than the student.

7 0
3 years ago
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Sedbober [7]

Answer:

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8 0
2 years ago
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Finger [1]

Answer:

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Step-by-step explanation:

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f-g = 3x +1 - ( x - 6)

Distribute the minus sign

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     = 2x +7

4 0
3 years ago
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