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4 years ago

There are 15 cars in Michaels toy car collection.Two thirds of the car are red.How many red cars does Michael have?

Mathematics

2 answers:

nadezda [96]4 years ago

8 0

15 divided by 3 = 5

5+5+5=15

5+5= 10 total red cars

o-na [289]4 years ago

5 0

The answer is 10 u have to put 2/3 multiplied by 15/1

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HELP ASAP ITS SO HARD! Kelsey did the following division problem. Her teacher says that the quotient she found is wrong. −2 5/6

SpyIntel [72]

Part A

Her steps were

$-2 \frac{5}{6} \div 1 \frac{1}{3}\\\\-\frac{17}{6} \div \frac{4}{3}\\\\-\frac{6}{17} \times \frac{3}{4}\\\\-\frac{6\times 3}{17\times4}\\\\-\frac{18}{68}\\\\-\frac{9}{34}\\\\$

Kelsey made a mistake on line 3. Note how the 17/6 flips to 6/17. This is not correct. You keep the first fraction the same, but you do flip the second fraction. This only applies when you divide two fractions.

The third step should look like $-\frac{17}{6}\times \frac{3}{4}$

=======================================================

Part B

Here's what she should have written

$-2 \frac{5}{6} \div 1 \frac{1}{3}\\\\-\frac{17}{6} \div \frac{4}{3}\\\\-\frac{17}{6} \times \frac{3}{4}\\\\-\frac{17\times 3}{6\times 4}\\\\-\frac{51}{24}\\\\-\frac{17}{8}\\\\$

If you want to convert that improper fraction to a mixed number, then you could do something like this

$-\frac{17}{8} = -\frac{16+1}{8}\\\\-\frac{17}{8} = -\frac{16}{8}-\frac{1}{8}\\\\-\frac{17}{8} = -2 \frac{1}{8}\\\\$

Or you could divide 17 over 8 using long division to get 2 remainder 1. The 2 is the quotient that goes to the left of the 1/8. The remainder of 1 is the numerator of 1/8.

4 0

3 years ago

Read 2 more answers

The table shows the maze-completion times, in seconds, of two sets of mice in an experiment.Which statement is true about the va

Yanka [14]

The value of $Q_{1} , Q_{2} ,$ , and $Q_{3}$ of each data is shown in the diagram below

Group A

Mean = $\frac{41+44+45+48+49+50+52+54+55+58}{10} =49.6$
Median = 49.5
Range = $58-41=17$
Interquartile Range = $Q_{3}- Q_{1} =54.5-44.5=10$

Group B
Mean = $\frac{40+41+43+45+48+52+55+57+60+62}{10}=50.3$
Median = 50
Range = 62-40=22
Interquartile range = 58.5-42 = 16.5

Correct statement: the time in Group B has a greater interquartile range

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4 years ago

Read 2 more answers

37.26 m +2.7 m + 0.0015=

Stells [14]

Add the two values being multiplied by m
37.26 + 2.7 = 39.96
39.96 m + 0.0015 is the most simplified you can get without having a way of finding the value of m. I apologize if I am mistaken, but I'm fairly certain! :)

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3 years ago

Random cell phone calls sent out to a sample size of 850 people is what type of sampling method? (I.e. simple random, etc.)?

ryzh [129]

Answer: Simple Random Sampling (SRS)

The people chosen are basically picked out of a hat at random, though likely they are chosen by a computer.

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3 years ago

Write an area word problem so that the solution is 36 square units

yawa3891 [41]

Answer:

Find the area of a cardboard box with a length of 9 inches and a width of 4 inches.

Step-by-step explanation:

9 in × 4 in = 36 in²

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3 years ago