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2 years ago

Fill in the blanks below in order to justify whether or not the mapping

Mathematics

1 answer:

Rasek [7]2 years ago

4 0

1) it's a function 2) for each number 3) set a input and set b output

to be a function, no ordered pairs should have same first coordinate, hence this is a function

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tyra has 12 2/3 cups of sugar. if r is the amount of sugar needed for one batch of cookies, the expression 12 2/3 ÷ r can be use

olga nikolaevna [1]

ANSWER

She can make 19 batches of oatmeal.

EXPLANATION

First we can change the mixed number into an improper fraction:

$12\frac{2}{3}=12+\frac{2}{3}=\frac{12\cdot3}{3}+\frac{2}{3}=\frac{36}{3}+\frac{2}{3}=\frac{38}{3}$

In this problem, r = 2/3. The division is:

$12\frac{2}{3}\div r=\frac{38}{3}\div\frac{2}{3}$

Using the KFC rule:

$\frac{38}{3}\div\frac{2}{3}=\frac{38}{3}\times\frac{3}{2}$

Solving we can see that the denominator of the first fraction can be simpliied with the numerator of the second fraction:

$\frac{38}{3}\times\frac{3}{2}=\frac{38}{1}\times\frac{1}{2}=\frac{38}{2}=19$

Tyra can make 19 batches of oatmeal with 12 2/3 cups of sugar.

6 0

1 year ago

after spending 7/9 of a three hours examination, a student left the exams hall. How many minutes has he to complete the duration

Montano1993 [528]

40 mins left! total time= 60 mins x 3 hours =180 mins. 180 divided by 9 is 20. 20 times 7 is 140. 180-140 equals 40. yay!

6 0

3 years ago

The area of the square is 144 square inches. What is the area of the circle, to the nearest square inch? Use 3. 14 for

Ainat [17]

C because 3.14 times 144 = 452.16

8 0

2 years ago

If p= 1/2 and m = -2, what is the value of -2(4p - 7)(m^2 + 5)

Andrew [12]

Answer:

10 so A

Step-by-step explanation:

6 0

2 years ago

500,000,000,000 in scientific notation

Alex Ar [27]

500,000,000,000 in scientific notation:
First you count to 0 zeros behind the 5 which is 11 zeros.
the scientific notation of 500,000,000,000 is:

₁₁
Answer: 5 x 10

I hop this helps :)

5 0

3 years ago

Read 2 more answers