SOMEBODY PLS HELP ME
URGENT!!!!!!!!!!
SOMEBODY PLS HELP ME URGENT!!!!!!!!!! - 1

Answers

Answer 1
Answer: 1. The dimensions of the tank should be 20 by 20 by 20. The hint is telling you that a tank that is 2 by 2 by 2 has a volume of 8, so, if you increase the size of the dimensions, you can reach 8,000 with the same digit of 2. Don't forget that the formula for the volume of a rectangular prism is lwh.

2. Since our aquarium is a square tank that is 20 by 20 by 20, each side on the top is 20 inches long. We have 4 sides, so the perimeter is 4 x 20, or 80. The perimeter of the top of our tank is 80 in². As for the base, we already know that each side is 20, so, in order to find the area of the base, we just multiply 20 x 20 to get 400. The area of the base of the tank is 400 in².

3. Another rectangular prism with a volume of 8,000 might have dimensions of 40 by 20 by 10. These, multiplied together, equal 8,000, using the formula for the volume of a rectangular prism.

To find the dimensions of the rectangular prism that equal 8,000, I mostly just use trial and error. It helps if you think about it as 8, as shown in the first problem, or if you list the factors of 8. For instance, for number 3, I just used the factors of 8 to find some possible dimensions.

8 - 1, 2, 4, 8
For number 3, I used the factors 1, 2, and 4. To change it from 8 to 8,000, I just changed 1 to 10, 2 to 20, and 4 to 40.

Hope this helps!

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The sales tax on a 750$ computer is 48.75. what is the sales tax rate?
Find the solutions to the equation belowCheck all that apply.2x2 +9x + 4 = 0

Use the distributive property to create an equivalent expression for 50+10x

Answers

Answer:

(5×10)+(1+10x)

Step-by-step explanation:

50/5=10

10/10=1

Answer: 10(5+x)

Step-by-step explanation:

Use cramers rule to solve each system of equations : 6x = 2 - y
3x + 1 = 2y , please explain thank you :)

Answers

Answer:

just follow the rules

Step-by-step explanation:

Cramer's rule applies to the case where the coefficient determinant is nonzero. ... A simple example where all determinants vanish (equal zero) but the system is still incompatible is the 3×3 system x+y+z=1, x+y+z=2, x+y+z=3.

Write the system as a matrix equation. ...

Create the inverse of the coefficient matrix out of the matrix equation. ...

Multiply the inverse of the coefficient matrix in the front on both sides of the equation. ...

Cancel the matrix on the left and multiply the matrices on the right.

05.01)A scale drawing of a bathroom is shown below: A rectangle is shown. The length of the rectangle is labeled 2 inches. The width of the rectangle is labeled 3.5 inches. The scale is 1 to 20.

What is the area of the actual bathroom in square feet? Round your answer to the nearest whole number.

7 ft2
19 ft2
12 ft2
140 ft2

Answers

The scale of 1 to 20 , means for every 1 inch on the drawing the actual size would be 20 inches.


The length is labeled 2 inches, so the actual length would be 2 *20 = 40 inches.


The width is labeled as 3.5 inches, the actual length would be 3.5 x 20 = 70 inches.


Now convert the inches to feet by dividing each length by 12:


40 inches / 12 = 3.33 feet.

70 inches / 12 = 5.83 feet.


Multiply them together for total area:

3.33 x 5.83 = 19.4 feet^2

Rounded to the nearest whole number = 19ft^2

The area of the actual bathroom in square feet is 19 ft^2

  • The calculation is as follows;

The scale of 1 to 20 reprsent that for every 1 inch on the drawing the actual size  should be 20 inches.

The length is labeled 2 inches,

so the actual length  is

= 2 (20)

= 40 inches.

Now

The width is labeled as 3.5 inches,

So, the actual length

= 3.5 (20)

= 70 inches.

Now convert the inches to feet by dividing each length by 12:

= 40\ inches / 12 = 3.33 feet\n\n= 70\ inches / 12 = 5.83 feet\n\n  

Now Multiply them together for total area:

= 3.33 (5.83)

= 19.4 feet^2

Learn more: brainly.com/question/9122916?referrer=searchResults

Brian invests £1300 into his bank account. He receives 10% per year simple interest.

How much will Brian have after 3 years?

Give your answer to the nearest penny where appropriate.

Answers

Answer:

£1690

Step-by-step explanation:

Amount invested by Brian = £1300

rate of simple interest = 10%

To find money Brian will have after three years

He will have amount invested in bank and interest earned in three years from that amount.

Simple interest for any principal amount p is given by

SI = P*R * T /100

where SI  is simple interest earned

T is time period for which simple interest is earned

R is rate of interest

Substituting value of P , R and T we have

SI = 1300*10* 3 /100 = 390

Therefor interest earned will be £390

Total money with Brian after three years = principal amount invested + interest earned in 3 years

= £1300 + £390 = £1690

Sybrina jogged 2 miles in 30 minutes. At this rate, how far would she jog in 90 minutes?At what rate did she jog each hour?

Answers

6 miles in 90 minutes and 4 miles per hour. 30 times two is 60 min so 2 miles times two is 4 miles. 

another 30 min is 90 min and another two miles is 6 miles.
2miles per 30min - 2 to 3
90/30=3x2=6
6miles in 90min
She was jogging @ a 1mile per 15min but each hour it was 4mile per hour

2-x=3x-10 what does x equal

Answers

the answer would be x equals -6