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olga55 [171]
3 years ago
10

Max has 5 red model cars. One third of his model cars are red. How many model cars does he have?

Mathematics
2 answers:
lara [203]3 years ago
7 0
15. 5 times 3 is 15. 
If you check, 15 divided by 3  is 5(red cars).
kicyunya [14]3 years ago
4 0
He has 15 model cars. 1/3 x 15 equals 5.
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Use the first and last data points to find the slope intercept equation of a trend line.
andriy [413]

Answer:

y = \frac{16}{3}x-79

Step-by-step explanation:

From the given table,

Two points are (1, 15) and (7, 47)

If the two points (x_1,y_1) and (x_2,y_2) are lying on a line then slope 'm' of the line will be,

m = \frac{y_2-y_1}{x_2-x_1}

   = \frac{47-15}{7-1}

   = \frac{32}{6}

   = \frac{16}{3}

Let the equation of a line passing through (h, k) is,

y - h = m(x - k)

If the line passes through (1, 15)

y - 1 = \frac{16}{3}(x-15)

y = \frac{16}{3}x-\frac{16}{3}(15)+1

y = \frac{16}{3}x-80+1

y = \frac{16}{3}x-79

4 0
3 years ago
1
olga nikolaevna [1]

Answer:

Fraction of the original board left = \frac{2}{15}

Step-by-step explanation:

Let the length of the board is = l feet

Marty saws off \frac{1}{5} of a wooden board.

Length of the board left = l - (\frac{1}{5})l

                                        = (\frac{4}{5})l feet

He saws off \frac{3}{4}th of the remaining board,

Board left = (\frac{4}{5})l-[(\frac{4}{5})l\times (\frac{3}{4})]

                = \frac{4}{5}l-\frac{3}{5}l

                = \frac{1}{5}l feet

He finally saws off \frac{1}{3}rd of the remaining board.

Board left = \frac{1}{5}l-[\frac{1}{5}\times \frac{1}{3}]l

                = (\frac{1}{5}-\frac{1}{15})l

                = \frac{2}{15}l feet

Fraction of the original board left = \frac{\frac{2}{15}l}{l}

                                                       = \frac{2}{15}

6 0
3 years ago
Prove why this makes sense.
olchik [2.2K]

Answer:

it doesn't

Step-by-step explanation:

hehe, try again

6 0
3 years ago
Read 2 more answers
A copy machine makes 36 copies per minute. How many copies does it make in four minutes and 45 seconds?
blsea [12.9K]

Answer: The copy machine makes 171 copies in 4 minutes and 45 seconds.

Step-by-step explanation:

Let's dissect the question. The copy machine makes 36 copies per minute.

36 per min.

To see how many copies it makes in 4 minutes and 45 seconds, we multiply 36 * 4.75. 45 seconds is 3/4ths of a minute, or 0.75 of a minute.

36 * 4.75=171

It makes 171 copies in 4 minutes and 45 seconds.

7 0
3 years ago
Find the unit rate of 183 miles in 3 hours
klio [65]
30. find the unit rate of 183 miles in 3 hours IF you want me to show the unit rate in miles per hour here is the method to do that: => 183 miles / 3 hours = 61 miles per hour. Thus the unit rate is 61 miles per hour or 61 miles /h Now, if you want to see the unit rate in miles per minute then here is the method to do that: => 1 hour = 60 minutes => 3 hours = 180 minutes => 183 miles / 180 minutes = 1.02 miles per minute
7 0
3 years ago
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