1) There are a total of 18 chairs. If the ratio of the red chairs to brown chairs is 2 to 4 , how many of them are red.2) rock can read 10 books in 30 minutes .how long does it take rock to read 15 books ,if the speed is consistent?
3)Ricky is at the bakery shop when he sees that 8 pastries cost $160. he needs 16 pastries . how much will 16 pastries cost .

Answers

Answer 1

Answer: 1) When you're finding ratios, the best thing to do is to add the parts together to find what one part is.
2+4= 6. Then divide this by the total- 18/6=3.
Therefore, the ratio of red to brown chairs is 2*3:4*3
Therefore, the amount of red chairs is 12.

2) The best thing to do i to find out how long it takes him to read one book them multiply this by 15.
To do this, simply divide the amount of time by the amount of books that he has read.
30/10= 3
Therefore, Rock can read a book in three minutes. As he is reading 15, you multiply these together.
3*15= 45
Therefore, it will take Rock 45 minutes to read 15 books.

3) The best thing to do is to find out what one pastry costs, and you can do this by dividing the cost by the amount of pastries.
160/8= 20.
Therefore, one pastry costs $20.
As you want to find the cost of 16 pastries, you simply times these together.
20*16= 320
Therefore, 16 pastries cost $320.

Hope this helps :)

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Simplify the ratio: 28:35

Answers

both can be divided by 7

28/7= 4

35/7= 5

4:5

28:35
Those are divisible by 7 so divide both sides by seven
the answer is 4:5

True or false one way to divide a fraction by another fraction is to multiply the dividend and the multiplicative inverse of the divisor

Answers

The given statement "to divide a fraction by another fraction is to multiply the dividend and the multiplicative inverse of the divisor" is true.

What is division of fractions?

Dividing fractions is nothing but multiplying the fractions by reversing one of the two fraction numbers or by writing the reciprocal of one of the fractions. By reciprocal we mean, that if a fraction is given as a/b, then the reciprocal of it will b/a.

To divide a fraction by another fraction is to multiply the dividend and the multiplicative inverse of the divisor is true.

Therefore, the given statement is true.

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brainly.com/question/17205173.

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It is very true! That's basically a shortcut to get the answer... but dont forget to reduce ur fraction

Original price: $45.00;markdown: 22%

Answers

Answer:

$35.10

Step-by-step explanation:

Original price = $45.00

Markdown = 22%

Therefore, 22% × 45.00

= $(22)/(100)$ × 45.00

= 0.22 × 45.00

= $9.9

Now subtract $9.90 from $45.00

= $45.00 - $9.90 = $35.10

$35.10 is the answer.

22% is 0.22 in decimal form
0.22×45= $9.90 markdown so 45-9.90= $35.10 is the sales price

a spinner is divided into eight equal section. one section is blue, and the other seven section are red. Austin spun first and got blue. because Austin spun blue, Kim is now certain she will not spin blue. Do you agree with Kim? Explain why or why not.

Answers

no because austin's spins don't affect kim's spins (unless he breaks it and 'accidentally' paints it blue or red)

certain means 100%
it is very probable that she won't spinn blue, but that is a 7/8 chance, she still can spin blue (also, if by mere luck the spinner happens to stop in the middle of red and blue then it is amazing)

no

No because the events are independent, and the results of the spinner before has no effect on it the future, so Kim still has the same 1/8 change as Austin had in getting blue.

Choose the number that is 1/4 of 1/2 of 1/5 of 200:A2
B5
C10
D25
E50

Answers

B-5
1/5 of 200 would be 40, 1/2 of 40 is 20, 1/4 of 20 is 5. Hope this helps!

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Answers

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