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Aleksandr [31]
3 years ago
13

Evaluate the expression below for x = 2, y = -3, and z = -1.

Mathematics
1 answer:
Mariana [72]3 years ago
4 0
B -5
The answer is -5
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If gas prices are now $3.75 and they were up 10% from 6 months ago, how much were gas prices 6 months ago?
Hatshy [7]

Given

gas prices are now $3.75 and it up 10% from 6 months ago.

Find out how much were gas prices 6 months ago.

To proof

gas prices now = $3.75

let the gas price 6 month ago = x

gas price now is rise up 10% from 6 months ago

First write 10% in simpler form

= \frac{10}{100}

= 0.1

Now the equation becomes

0.1x + x = 3.75

1.1x = 3.75

x =\frac{3.75}{1.1}

x = 3.41 (approx)

Thus gas prices 6 months ago be $ 3.41 (approx )

Hence proved

7 0
3 years ago
Kim drives 156 miles from rotherham to London.She has an average speed of 60 miles per hour.
kicyunya [14]
Currently, you would ask "How long does it take to get from Rotherham to London?" You would do 156/60, which would be 2.6 hours. 2.6 hours is 156 minutes (2 hours, 36 minutes).
9:36 is when Kim would reach London, so yes.
5 0
3 years ago
A car is traveling at a steady speed. It travels 1 3/4 miles in 2 1/3 minutes. how far will it travel in 21 minutes? in 1 hour?
GaryK [48]

Answer:

Step-by-step explanation:

1¾ miles/(2⅓ minutes) = (7/4 miles)/(7/3 minutes) = ¾ mile/minute

21 minutes × ¾ mile/minute = 15.75 miles

60 minutes × ¾ mile/minute = 45 miles

8 0
3 years ago
Which of the following functions are an example of exponential growth ?
yanalaym [24]

Answer:

i don't know maybe D. 2 and 3

8 0
3 years ago
What is the answer to -10(x+4)+42=-19-19
BartSMP [9]

Answer:

x=4

Step-by-step explanation:

6 0
3 years ago
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