MATHEMATICS MIDDLE SCHOOL

My last question! help me. ASAP

Answers

Answer 1

Answer:

Answer: $119.43\ cm^2$

Step-by-step explanation:

The area of the rectangle can be calculated with the following formula:

$A_r=lw$

Where "l" is the length and "w" is the width.

In this case:

$l=12\ cm\nw=11\ cm$

Then, substituting values into the formula, you get that the area of the rectangle shown in the figure is:

$A_r=(12\ cm)(11\ cm)\n\nA_r=132\ cm^2$

The formula that is used to find the area of a circle is:

$A_c=\pi r^2$

Where "r" is the radius of the circle.

In this case you know that:

$r=2\ cm$

Then, the area of the given circle is:

$A_c=\pi (2\ cm)^2\n\nA_c=12.566\ cm^2$

Subtract both areas in order to find the area of the shaded region. Rounded to the nearest hundredth, this is:

$A_s=132\ cm^2-12.566\ cm^2\n\nA_s=119.43\ cm^2$

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What is 4 to the 60th power

Answers

What is 4th to the 60th piwer

12,960,000 that is the answer

Find the selling price.

Cost to store: $75

Markup: 20%

Answers

Cost Price = $75.

Marked up by 20%.

Selling Price = (100% + 20% ) of Cost Price.

   = 120% of 75

   = 1.2 * 75

   = 90

Selling price = $90

Given:
Cost to store: $75
Mark up: 20%

$75 * 20% = $15
$75 + $15 = $90

The selling price is $90.

A bag contains 90 marbles, some red and some blue. If there are 60 blue marbles, what is the ratio of blue to red marbles?

Answers

If there is a total of 90 marbles, and we know that there is 60 blue marbles. We can assume that the remaining 30 marbles are red therefore the ratio of red to red marbles would be 60÷30, which is 2. Or the ratio is 60:30 which is reduced to 2:1.

49 is 70 of what number is sopost to be here

Answers

the answer is 70% if your trying to find the percentage if your trying to fing the of it will be 70 also

70% of a number is 49
70% × n = 49
70% = $(70)/(100)$ = 0.7
0.7 × n = 49
Divide by 0.7 on either sides to isolate n
$(0.7n)/(0.7)$ = $(49)/(0.7)$
0.7 and 0.7 cancels out
n = 70

49 is 70% of 70

2/3 cup of milk to make 8 muffins what is the unit rate for muffins per cup of milk