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tankabanditka [31]

3 years ago

5

8+n the answer is 45

2 answers:

adelina 88 [10]3 years ago

8 0

Answer:

n=37 easy math :)

liq [111]3 years ago

6 0

Answer:

n=37

Step-by-step explanation:

45-8=37

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How do I factor and simplify this?

leonid [27]

Step-by-step explanation:

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5 0

3 years ago

What is the amount of a $4,000.00 annuity due at 12 percent compounded semiannually for 3 years?

Dmitriy789 [7]

Answer:

$ 5674.076

Step-by-step explanation:

The question is on compound interest

The formulae = A= P(1+ r/n) ^nt .......where P is the principal amount, r is the rate of interest in decimal, n is number of compoundings per year and t is the total number of years.

Given; P= $4,000.00 , r=12/100=0.12, n=2 and t=3

Substituting values in the equation A= P(1+ r/n) ^nt

A= 4000 ( 1+0.12/2)^2×3

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A=$ 5674.08

3 0

3 years ago

14. The area of a rectangle is 375 square inches and it’s perimeter is 80 inches. Find both the length and width.

Pavel [41]

Answer:

Length $=25$ inches

Width $= 15$ inches

Step-by-step explanation:

Let $l$ = length of rectangle, $w$ = width of rectangle

Given the area and the perimeter of the rectangle, we can write:

$lw = 375$

$2l+2w=80$

So:

$l+w = 80\div2$

$=40$

$l=40-w$

Now, we can use substitution to find the value of $w$ :

$lw = 375$

$(40-w)w = 375$

$40w-w^2 = 375$

$375+w^2-40w = 0$ (Quadratic equation)

$(w-15)(w-25) = 0$

∴ $w = 15, 25$

We can use substitution again to find the value of $l$

$lw = 375$

$l=375\div w$

$=25,15$

∵ Length usually refers to the longer side of a rectangle, ∴ length $=25$ inches and width $=15$ inches.

Hope this helps :)

8 0

3 years ago

Draw an area model that demonstrates that the quotient of 2080 and 40 is 52.

Scrat [10]

Area model is used to illustrate multiplication and division operations.

See attachment for the area model

The equation can be represented as:

$\frac{2080}{40} = 52$

Express 2080 as 1200 + 800 + 80

$\frac{1200 + 800 + 80}{40}=52$

Express as

$\frac{1200 + 800 + 80}{40}=\frac{1200}{40} + \frac{800}{40} + \frac{80}{40}$

Divide

$\frac{1200 + 800 + 80}{40}= 30 + 20 + 2$

See attachment for the area model

Read more about area models at:

brainly.com/question/18533236

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2 years ago

Kasey needs to get 80% of his questions correct on his math test to get B for the quarter. If his test has 60 questions, how man

Neko [114]

Answer:

80 4 4

___ x 60 = ____ 60 = _____ x 12 = 48 questions he will need to get right.

100 5 1

6 0

3 years ago