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Ahat [919]
3 years ago
14

you Play a video game for 11 minutes. You lose 121 points. What integer represents the mean change in points per minutes?

Mathematics
1 answer:
Dafna1 [17]3 years ago
3 0

Answer: 11

Step-by-step explanation:

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While on a walk in the country, you pass a field full of horses and chickens. After a quick count, you determine there are 43 he
Irina-Kira [14]

Horse = x = 1 head and 4 feet

Chicken =y = 1 head and 2 feet

Horse + chicken = x + y = 43 ( total heads)

Horse = 43 - y

4x + 2y = 122

4(43-y) + 2y = 122

Simplify:

172-4y + 2y = 122

Combine like terms

172-2y = 122

Subtract 172 from both sides

-2y = -50

Divide both sides by-2

Y = 25

X + y = 43

X + 25 = 43

X = 18

There are 18 horses and 25 chickens.

4 0
3 years ago
Rachel invested $15,000 in a nine-year CD giving 8.5% interest, but needed to withdraw $4,000 after two years. If the CD's penal
drek231 [11]
Given:
Principal = 15,000
interest = 8.5%
term = 9 years

I = 15,000 * 8.5% * 9 years = 11,475
total amount after 9 years = 15,000 + 11,475 = 26, 475

Preterm after 2 years. wdl of 4,000. penalty is 6 months interest of 4,000

I = 4,000 * 8.5% * 6/12 = 170  amount of penalty
I = 15,000 * 8.5% * 2 years = 2,550 interest earned for 2 years

15,000 + 2,550 = 17,550
17,550 - 4,000 - 170 = 13,380 amount to be invested for another 7 years

I = 13,380 * 8.5% * 7 years = 7,961.10
total amount after 9 years with pretermination
 13,380 + 7,961.10 = 21,341.10
5 0
3 years ago
Read 2 more answers
In a cross country marathon jack and ted ren a total of 81 kn. Ted ran 5kn farther than jack how far did each of them run?
kotegsom [21]

Answer:

Jack ran 38 km and Ted ran 43 km.

Step-by-step explanation:

Let Jack’s displacement be x

x + (x+5) = 81

2x + 5 = 81\\2x = 76

x = 38 km

x+5 = 38 + 5\\x+5 = 43km\\

3 0
4 years ago
For what values of x is x^2 + 2x = 24 true?
maw [93]

Answer:

x = -6, x = 4

Step-by-step explanation:

<u>Step 1:  Factor</u>

<em>Subtract 24 from both sides</em>

x^2 + 2x- 24 = 24 - 24

x^2 + 2x - 24 = 0

<em>Make two different x's</em>

x^2 + 2x - 24 = 0

x^2 + 6x - 4x - 24 = 0

<em>Make two different parenthesis</em>

x^2 + 6x - 4x - 24 = 0

(x + 6)(x - 4) = 0

<em>Step 2:  Solve for x in both equations</em>

x + 6 = 0

x + 6 - 6 = 0- 6

x = -6

x - 4 = 0

x - 4 + 4 = 0 + 4

x = 4

Answer:  x = -6, x = 4

6 0
3 years ago
Find the value of x.<br> A. About 57.6<br> B. About 42.6<br> C. About 12.6<br> D. About 27.6
nordsb [41]

Answer:

about 27.6

Step-by-step explanation:

The sum of interior angles for this rectangle is 1080

119+140+124+6x+132+132+102 = 1080 add like terms

749 + 12x = 1080 subtract 749 from both sides

12x = 331 divide both sides by 12

x = 27.6 approximately

8 0
3 years ago
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