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Alenkasestr [34]

3 years ago

14

May wants to buy a $50,000,000 car. For every week, she pays 5% until she pays off the price. How many weeks would she need unti

l she pays the total of $50,000,000?

1 answer:

Oksi-84 [34.3K]3 years ago

5 0

It would take May 20 weeks to pay off the car.

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The length of a rectangle is the sum of the width and one. The area direct angle 72 units. What’s the length, in units, of the r

insens350 [35]

Answer:

The length of the rectangle is of 9 units.

Step-by-step explanation:

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

$ax^{2} + bx + c, a\neq0$ .

This polynomial has roots $x_{1}, x_{2}$ such that $ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})$ , given by the following formulas:

$x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}$

$x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}$

$\bigtriangleup = b^{2} - 4ac$

Area of a rectangle:

A rectangle has width $w$ and length $l$ . The area is the multiplication of these measures, that is:

$A = wl$

The length of a rectangle is the sum of the width and one.

This means that $l = w+1$ , or $w = l - 1$

The area direct angle 72 units. What’s the length, in units, of the rectangle

We want to find the length. So

$wl = 72$

$(l-1)l = 72$

$l^2 - l - 72 = 0$

Quadratic equation with $a = 1, b = -1, c = -72$ . So

$\bigtriangleup = (-1)^{2} - 4(1)(-72) = 289$

$l_{1} = \frac{-(-1) + \sqrt{289}}{2*(1)} = 9$

$l_{2} = \frac{-(-1) - \sqrt{289}}{2*(1)} = -8$

Since the length is a positive measure, the length of the rectangle is of 9 units.

8 0

3 years ago

QUESTION 21 ✓ Round 5 1/3 to the nearest whole number?<br>

wariber [46]

Answer:

5

Step-by-step explanation:

1/3 is only 0.33 and 0.33 isnt higher than 0.50, so you cant round anything. 5 is the answer.

5 0

2 years ago

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Find two equivalent ratios for each ratio.

Damm [24]

Answer:

Ex. 2:1 = 4:2 or 8:4

~Hope this helps!!

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3 years ago

What is the answer to 1/8(8x+15)=24

Korvikt [17]

Answer:

x = 177/8

Step-by-step explanation:

First, we must get rid of the fraction by multiplying 8 by both sides.

8 · 1/8(8x + 15) = 24 · 8

1(8x + 15) = 192

8x + 15 = 192

Then we simplify. First subtract 15 from both sides.

8x + 15 - 15 = 192 - 15

8x = 177

Then divide 8 from both sides.

8x/8 = 177/8

x = 177/8

4 0

3 years ago

PLEASE HELP EASY AS SOON AS POSSIBLE <br> 25 PTS

Korolek [52]

Answer:

P(not blue) = 3/5

Step-by-step explanation:

There are 4 blue shirts, 2 brown shirts , 2 green shirts, 1 red shirt and 1 white shirt for a total of 10 shirts

How many shirts are not blue?

2 brown shirts , 2 green shirts, 1 red shirt and 1 white shirt for a total of 6 shirts

P( not a blue shirt) = not a blue shirt/total

= 6/10

=3/5

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3 years ago