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3 years ago

6th grade help me Algebra I think

Mathematics

1 answer:

scoundrel [369]3 years ago

6 0

n - 7 = 21, n= 28 should be right bc the difference of 28 and 7 is 21

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WILL GIVE BRAINILEST TO CORRECT ANSWER! TYSM IF U ANSWER :D

Jet001 [13]

Answer:

2/3 is bigger than 5/8 because 5/8 is split into smaller portions

Step-by-step explanation:

hope this helps

8 0

2 years ago

The Grand Canyon Skywalk at Eagle Point is a horseshoe shaped steel frame with a glass floor looking down to the Grand Canyon be

yulyashka [42]

Answer: It will be needed 864 square feet of glass to cover the Skywalk floor.

Step-by-step explanation: The figure below shows the area in question.

Area of a circle is given by

$A=\pi.r^{2}$

The walkway is a semicircle. Then, area will be:

$A=\frac{\pi.r^{2}}{2}$

The area that will be covered with glass is the area between the outer and the inner circles. So, area is

$A_{t}=A_{outer}-A_{inner}$

$A_{t}=\frac{\pi.r_{o}^{2}}{2}- \frac{\pi.r_{i}^{2}}{2}$

$A_{t}=\frac{\pi}{2}(32.5^{2}-22.5^{2})$

$A_{t}=\frac{\pi}{2}(550)$

$A_{t}=$ 864

To cover the Skywalk floor is needed 864 $ft^{2}$  of glass.

4 0

3 years ago

Find the 8th term of the geometric sequence: 1/3, -1, 3

olga55 [171]

Step-by-step explanation:

a= 1/3

common ratio = -3

the 8th term is given by,

$a {r}^{7} = \frac{1}{3} \times {( - 3)}^{7}$

$= - 729$

7 0

3 years ago

a caterer received an order to prepare 120 servings of salad for a banquet. Each serving will weigh 4 ounces. so far the caterer

Ugo [173]

To easier digest this question, we can multiply the 120 servings by 4 ounces to make it into a common unit of measurement. This way, we can compare ounces with ounces instead of ounces to servings.
We then have 480 servings, and the poor caterer only has 60 ounces. We can put that into a fraction, 60/480. From here, things get slightly easier. All we have to do is make it into a fraction we can digest, which would be 1/8. We can turn that fraction into a decimal by simply dividing. We have 0.125.
Since we are changing from a decimal into a percent, we have to move the decimal point two places to the right. We have out final answer of 12.5%.

6 0

3 years ago

A rectangular prism and a square pyramid were joined to form a composite figure.

azamat

Answer:

B. 333 in.2

Step-by-step explanation:

The area of the base is 81^2

lateral is 45 x 4 = 180^2 (9x5x4)

180^2 add the 72 pyramid = 252^2 + base of 81^2 = 333^2

Composite figueres i do like this as shown to you a few seconds ago.

The triangle shows us just the height

4 inches

We can see that height is smaller central isosceles height across the center base point.

We also can remember to use the length 9inches but divide by 2 and get each triangle area this way.

4 x 1/2 base = 4x 1/2 4.5 = 4 x 2.25 = 9^2 each right side triangle

9 x 8 = 72^2

we add the areas 72+ 81+lateral 180 = 333 inches^2

8 0

3 years ago