MATHEMATICS MIDDLE SCHOOL

I need help please

Answers

Answer 1

Answer:

Answer:

B. $2862

Step-by-step explanation:

Using n=5 in the given equation, we get ...

A(5) = 2700 + (5-1)(.015·2700) = 2700 +4(40.50)

A(5) = 2862.00

In year 5, you will have $2862 in the account.

_____

Comment on the given equation

The given equation tells you the amount in the account at the beginning of the year, before it earns any interest. Since that is the equation given, we presume that is the answer desired. In most "account balance" problems, you are interested in the amount at the end of the interest-earning period.

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1. Beginning with the equation x= -18, write the new equation produced by dividing both sides by $3.

Solve6. Jerry made a down payment of $3850 on a carthat cost $11,000. What percent of the price ofthe car was his down payment?

Answers

$\displaystyle \n p = (3850)/(11000) * 100 = 0,35 * 100 = \boxed{35 \% }$

Which fraction correctly completes the equation?

6/8+?=1

Answers

6/8 plus 2/8 would equal 8/8 so it would reduce to 1 so your answer would be 2/8

As a short answer you could put it as

2
--
8

I need help asap, please!!!

Answers

Answer:

Step-by-step explanation:

the area of a cylinder is A=2πrh+2πr2

so this would be

2(pi)(1.5)(8)+2(pi)(1.5)(2)

24pi+6pi

30pi=94.25

5/6 as a decimal and terminating

Answers

5/6 = 0.833333 .... (non-terminating)

A Square Pyramid has a Total Surface Area of 40square inches and the side length of its square base
is 4 inches. Determine the slant height of the
pyramid.

Answers

Answer:

$3\ in$

Step-by-step explanation:

Let h be the slant height of the square pyramid.

Given:

Total surface area of the square pyramid = 40 square inches

And square base has a side length = 4 inches

We need to find slant height of the square pyramid.

The surface area of the pyramid is sum of the area of the square and area of each of the triangle faces.

$A_(square\ pyramid) = A_(square\ base) + 4* A_(triangle)$ -------(1)

The base area of the square pyramid = $(side)^(2)$

So, $A_(square\ base) = 4^(2)$

$A_(square\ base) = 16 in^(2)$

And area of the triangle = $(1)/(2) b* h$

Where b = base of the triangle

The base of the triangle is one side of the square pyramid base, so the base of the triangle is 4 inches.

And h = slant height of the triangle.

$A_(triangle) = (1)/(2)* 4* h$

$A_(triangle) = 2* h$

So the area of the triangle = 2h square inches

Now we substitute area of the base and area of the triangle in equation 1.

$A_(square\ pyramid) = 16 + 4* 2h$

Now we substitute the value of total surface area of the square pyramid in above equation.

$40 = 16 + 4* 2h$

Simplify the above equation.

$40 = 16 + 8h$

$8h = 40-16$

$8h = 24$

$h = (24)/(8)$

$h=3\ in$

Therefore the slant height of the square pyramid is 3 inches.

Answer:

Step-by-step explanation:

1. 9 square inches

2. 60 square inches

3. 69 square inches

What is the area in square millimeters of a rectangle with a width of 8.7 centimeters, and a length of 9.3 centimeters? A. 80,910 mm2 B. 809.1 mm2 C. 8091 mm2 D. 80.91 mm2