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makvit [3.9K]
3 years ago
12

The scale of a model train is 4 inches to 30 feet. One of the cars of the model train is 6 inches long. What is the length, in f

eet, of the actual train car?
Mathematics
1 answer:
Ilya [14]3 years ago
7 0
The answer is 45 feet. You would set up the problem as two ratios, 4 inches to 30 feet and 6 inches to x feet. You would then cross multiply to solve for x where 4x = 180 and x = 45 feet. 
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Your teacher announced a 50-point math quiz for tomorrow. The quiz will have 15 questions with word problems worth 4 points each
koban [17]

Answer:

5  word problems(4points each)      &      10 open (3 points each)

Step-by-step explanation:

O= open response

W= word problems

  W+O =15

4W + 3O = 50

multiply the first by -3 to eliminate O

-3W -3O = -45

4W  + 3O = 50

  AD BOTH

W = 5    ( 5 questions word problems)

O= 10   ( 10 questions open response)

  5x4 = 20

10x3 = 30

      20 + 30 = 50 points

3 0
2 years ago
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algol [13]

Answer:

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Step-by-step explanation:

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7 0
3 years ago
Amanda sold 120 ice cream cones. 1/5 of the ice cream cones were covered in sprinkles. how many ice cream cones were not covered
Snowcat [4.5K]

Answer:24

Step-by-step explanation:

1 divided by 5=.2

120 times .2=24

5 0
3 years ago
N-31/4 =2 simple equation
Zanzabum

Answer:

n = 5.75

Step-by-step explanation:

original equation

n - 31/4 = 2

multiply everything by 4

n * 4 - 31/4 * 4 = 2 * 4

simplify

4n - 31 = 8

add 31 to both sides

4n - 31 + 31 = 8 + -31

simplify

4n = -23

divide both sides by 4

4n/4 = -23/4

simplify

n = 5.75

6 0
3 years ago
Please help me please lots of points
tigry1 [53]

50

uhh as each scientific notation is 10 more, so therefore 5 x 10

50

5 0
3 years ago
Read 2 more answers
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