MATHEMATICS HIGH SCHOOL

"Mia jogs 3 kilometers in 20 minutes. There are about 0.6 miles in a kilometer. What is Mia’s approximate speed in miles per minute?A. 0.25 miles per minute
B. 0.09 miles per minute
C. 4 miles per minute
D. 11 miles per minute"

Answers

Answer 1
Answer: First we need to find Mia's speed (v) in km/min

v = distance travelled/ time 
v = 3 km/20 minutes
v = 0.15 km /min

in order to convert the speed into mile/min, we need to use the conversion factor given in which for every kilometer, there is 0.6 miles. 

v = 0.15 km/min *(0.6 miles/ km) 
v =0.09 miles/min

therefore the speed in miles/min is 0.09 miles/min
Answer 2
Answer:

Answer:

B

Step-by-step explanation:

I smartest I'm know its B

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The plans for a rectangular deck call for the width to be 4 feet less than the length. Sam wants the deck to have an overall perimeter of 52 feet. What should the length of the deck be?

Answers

The length of the deck will be equal to 15 feet.

What is a rectangle?

A quadrilateral with four right angles is a rectangle. It can alternatively be described as a parallelogram with a right angle or an equiangular quadrilateral, where equiangular denotes that all of its angles are equal.

Since rectangles have two pairs of equal-length sides, for any rectangle with length L and width W,

its perimeter is always 2L + 2W (or 2(L + w), whichever you prefer). Here, we're told that the width is 4 feet less than the length.

Symbolically, we'd say that W = L - 4. This allows us to write the perimeter entirely in terms of length if we replace our W with the expression on the right side:

2L + 2W = 2l + 2(L - 4) = 2L +2L - 8 = 4L - 8

This expression to come out to 52, the equality 4L - 8 = 52 and solve for L to find what the length has to be:

Adding 8 to either side, the equality becomes 4L = 60. Diving either side by 4 gives us L = 15, which tells us that the length of the deck should be 15 feet.

Therefore, the length of the deck will be equal to 15 feet.

To know more about rectangles follow

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Since rectangles have two pairs of equal-length sides, for any rectangle with length L and width W, its perimeter is always 2L + 2W (or 2(L + w), whichever you prefer). Here, we're told that the width is 4 feet less than the length. Symbolically, we'd say that W = L - 4. This allows us to write the perimeter entirely in terms of length if we replace our W with the expression on the right side:

2L + 2W = 2l + 2(L - 4) = 2L +2L - 8 = 4L - 8

Sam wants this expression to come out to 52, so we can set up the equality 4L - 8 = 52 and solve for L to find what the length has to be:

Adding 8 to either side, the equality becomes 4L = 60. Diving either side by 4 gives us L = 15, which tells us that the length of the deck should be 15 feet.

Ava's dog weighs 56 kilograms. Marty's dog weighs 7/8 as much. How much does Marty's dog weigh?

Answers

Answer:

49 kg.

Step-by-step explanation:

We have been given that Ava's dog weighs 56 kilograms. Marty's dog weighs 7/8 as much. We are asked to find the weight of Marty's dog.

To find the weight of Marty's dog, we will multiply 56 by (7)/(8).

\text{Weight of Marty's dog}=56\text{ kg}* (7)/(8)

\text{Weight of Marty's dog}=7\text{ kg}* 7

\text{Weight of Marty's dog}=49\text{ kg}

Therefore, the weight of Marty's dog is 49 kilograms.
49 kilograms!
56:8=7 (is the 1\8)
so the 7\8 are 7*7=49 kilograms

Carlos needs to memorize words on a vocabulary list for French class. He has memorized 30 of the words, which is three-fifths of the list. How many words are on the list?

Answers

a neat trick for this problem is that you can easily multiply 3 by a number to make it 30. (3x10=30). using the same number, multiply it by the denominator. 5x10=50. the answer is 50 (3/5 x 10/10 = 30/50 without changing the original ratio)

One​ day, the hours without daylight in a particular city was 17 3/4 hours. What was the number of hours of​ daylight? PLS help me ASAP!

Answers

Answer:

6 ¼ hours of Daylight

Step-by-step explanation:

  1. a day = 24 hours
  2. you know that there was 17 ¾ hours of no day light
  3. 17 ¾ = 17.75
  4. 24 - 17.75 = Daylight hours
  5. daylight hours = 6.25

Choose the equation of the horizontal line that passes through the point (1, -5). A.y = -5
B.x = 1
C.y = 1
D.x = -5

Answers

horizontal line is y=something
(x,y)
what is y value?
(1,-5)
y=-5 is answer

A is answer
I believe that the answer would be letter B.

100 percent of blank = 60

Solve for blank. ​

Answers

Answer:

60

if its all of 60 the answer is 60

Step-by-step explanation:

have a great day
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