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2 years ago

13

The length of a rectangle is 5 yd less than twice the width, and the area of the rectangle is 52 yd^2. Find the dimensions of th

e rectangle.

1 answer:

Softa [21]2 years ago

3 0

Answer:

the length is 8 and the width is 6.5

Step-by-step explanation:

6.5 x 2 = 13 - 5 = 8 x 6 = 52

The Calculator can confirm.

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a flat-bottom reflecting pool has length 30 yards, width 10 yards, and depth 0.3 yard. Find th e surface area of the pool and th

Zigmanuir [339]

The surface area of the object above can be calculated by summing up all the areas of the surfaces. Therefore, we will have 5 surfaces with rectangles as the shape. The volume would be the product of the length, width and the depth. We calculate as follows:

SA = 2(depth)(length) + 2(depth)(width) + (width)(length)
SA = 324 yd^2

VOlume = 30x10x.3
Volume = 90 yd^3

3 0

2 years ago

What is 32.7 times 10

shutvik [7]

The answer is 327. Remember that when you multiply a number by ten, you move the decimal point to the right one place.
Hope that helped you.

5 0

2 years ago

Read 2 more answers

Rewrite the expression as an equivalent expression with fewer terms: 31-4-(5r+7

asambeis [7]

Answer:

$Expression: 20-5r$

Step-by-step explanation:

Given

$Expression: 31-4-(5r+7)$

Required

Rewrite with fewer terms

$Expression: 31-4-(5r+7)$

Open Bracket

$Expression: 31-4-5r-7$

Collect Like Terms

$Expression: 31-4-7-5r$

$Expression: 20-5r$

<em>Hence, the equivalent is 20 - 5r</em>

7 0

3 years ago

Five years ago, a typical 70” TV cost about $2400. Now a similar TV costs approximately $1680. What is the percent decrease in T

Archy [21]

Answer:

The percentage decrease in TV price after five years is 6.89

Step-by-step explanation:

Given as :

The cost of TV five years ago = $ 2400

The present cost of TV = $ 1680

Let The decrease percentage in five years = x

So, The cost of TV after T year = Present cost × $(1-\frac{Rate}{100})^{Time}$

Or, $ 1680 = $ 2400 × $(1-\frac{Rate}{100})^{5}$

Or, 0.7 = $(1-\frac{Rate}{100})^{5}$

Or, $(0.7)^{\frac{1}{5}}$ = 1 - $\frac{x}{100}$

Or, 0.9311 = 1 - $\frac{x}{100}$

Or, $\frac{x}{100}$ = 1 - 0.9311

∴, $\frac{x}{100}$ = 0.0689

I.e x = 0.0689 × 100 = 6.89

Hence The percentage decrease in TV price after five years is 6.89 Answer

6 0

3 years ago

What is the missing number in the pattern above?

muminat

B because you multiply every number by 4.

Ex. 30 x 4 = 120
120 x 4 = 480
480 x 4 = 1,920
1,920 x 4 = 7,680

Hopefully that helps you :)

7 0

2 years ago