MATHEMATICS MIDDLE SCHOOL

Use any method to solve the equation.if necessary, round to the nearest hundredth. 8x^2-48=0

Answers

Answer 1
Answer:

Answer:

x = ± 2.45

Step-by-step explanation:

Given

8x² - 48 = 0 ( add 48 to both sides )

8x² = 48 ( divide both sides by 8 )

x² = 6 ( take the square root of both sides )

x = ± √(6) = ± 2.45 ( nearest hundredth )

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Christian has a large rectangular container that is 30 inches by 20 inches by 20 inches. He also has a small cubical container with each side 10 inches. If he fills up the small container with water and pours into the large container, the water reaches to how many inches?

Answers

find volumes
V=LWH
large is
30*20*20=V=12000 in^3

small is 10 by 10 by 10
V=10*10*10
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how many times of smaller=larger
hw many times 1000=12000
divide both sides by 1000
how many times =12


answer is 12 times

Could someone help me????

Answers

You set up the equation by adding all sides together. Then set the equation equal to 102 since that is the total perimeter. To solve for the variable, (a) you first want to combine like terms. (That is where the picture starts)

Answer:

The longest side length is 31.764705882352941

Step-by-step explanation:

Add up all the sides and then make it equal to 102

To get perimeter you add up all the sides

 (12a) + (6a + 8) + (6a + 8) + (10a - 4) = 102

             (18a +8) + (16a + 4) = 102

                     34a + 12 = 102

                             - 12    - 12

                              34a = 90

                              (34a)/(34) = (90)/(34)

                              a = 2.647058823529412

Then plug in a to 12a to get the longest side length

  12(2.647058823529412) = 31.764705882352941

What is 21/45 simplified?

Answers

21÷3=7
45÷3=15
this means that 21/45 simplified is 7/15

Fiona starts at the beginning of a hiking trail and walks 4/5 mile. She counts the mileage markers that are placed every 1/10 mile along the trail. How many markers does she count?

Answers

First you have to make 4/5 have the same denominator as 1/10. Which is ten.
So then you get 8/10. By multiplying the numerator and denominator by 2. Since you see one marker every 1/10 of a mile, she would see 8 markers.

A ceramic artist can shape a pot in 3 minutes. It takes 10 minutes to fire one batch of pots in the kiln. If there are p pots in a batch, which expression represents the time it takes to shape and fire one batch of pots? How long will it take the potter to form and fire a batch of 10 pots?The expression is 3p. It takes 30 minutes to shape and fire 10 pots.

The expression is 3p − 10. It takes 20 minutes to shape and fire 10 pots.

The expression is 3(p + 10). It takes 60 minutes to shape and fire 10 pots.

The expression is 3p + 10. It takes 40 minutes to shape and fire 10 pots.

Answers

3p + 10 (40 minutes)
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How would you replace 27/50 with the nearest half or whole number without using a number line?

Answers

25/50 = 1/2 soooooooooooooooooooooooooooooooooo
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