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mina [271]
3 years ago
13

7+ X +7+17+7+ X +7 equals 100 what does X equal

Mathematics
2 answers:
e-lub [12.9K]3 years ago
4 0
X=27.5

First combine like terms

Then subtract 45 from each side

Then divide by 2
pav-90 [236]3 years ago
3 0

Answer:

the answer is 27.5

Step-by-step explanation:

first you add all the like terms

7+7+17+7+7=45

then you subtract 45 from 100

100-45=55

then you know that the two varibles will equal 55 so the you divide 55 by 2

55/2= 27.5

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Alysha’s average speed when walking home from the market was 5 mph, and it takes her 21 minutes longer than when she drives to t
Delicious77 [7]

9514 1404 393

Answer:

  3 minutes

Step-by-step explanation:

Let x represent Alysha's time to drive home from the market.

Speed and time are inversely proportional to each other (for the same distance), so we have ...

  (walking speed)(walking time) = (driving speed)(driving time)

  5(x +21) = (8·5)(x)

  x +21 = 8x . . . . . . . . . divide by 5

  21 = 7x . . . . . . . . subtract x

  3 = x . . . . . . .divide by 7

It takes Alysha 3 minutes to drive home from the market.

3 0
3 years ago
Original price: 60 markup:15% what is retail price
sdas [7]
60x1.15=69
Retail price is $69
7 0
3 years ago
One hundred nautical miles equals about 185 kilometers. To the nearest kilometer, how far in kilometers is 175 nautical miles?
MrMuchimi

Answer:

323.75 km

Step-by-step explanation:

185/100 = 1.85 km per nm

1.85 * 175 = 323.75 km

3 0
3 years ago
The two sides of a triangular park enclosing the right angle
alina1380 [7]

Step-by-step explanation:

could you please mark me as the brainliest answer

7 0
3 years ago
Read 2 more answers
Worth 30 points. i really need help.
omeli [17]

Answer: a) w = -26, -2

b) x = -4,  -1

c) k = 17, -1

d) z = 65, 935

Multiple choice: D)

Step-by-step explanation:

a) (w+26)(w+2) = 0

w = -26, w = -2

b) (x+4)(x+1) = 0

x = -4, x = -1

c) (k-17)(k+1) = 0

k = 17, k = -1

d) (z-65)(z-935) = 0

z = 65, x z 935

Multiple Choice

D)

Multiply all terms by 2.

<h2><u><em>PLEASE MARK AS BRAINLIEST!</em></u></h2>
5 0
3 years ago
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