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LenKa [72]
3 years ago
15

An electric plant consumed 420 tons of coal in 6 weeks. At this

Mathematics
1 answer:
jok3333 [9.3K]3 years ago
4 0

Answer: 700 tons of coal consumed in 10 weeks.

Step-by-step explanation:

first you find how much coal is consumed in 1 week which is 70 tons, then you multiply the 70 tons by 10 weeks because you are trying to find how much tons of coal can be consumed in to weeks and when you do that you should get 700 tons of coal for 10 weeks.

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Can someone please answer this question please I need it right now and please answer it correctly please show work answer number
schepotkina [342]

Answer:

24) A

22) B

Step-by-step explanation:

24)

Original Price: d      

Sale: 30%    

A sale means that a value is subtracted from the original price

d - 30% = 0.7d

All options given:

A) 0.3d

B) 0.7d

C) d - 0.3d = 0.7d

D) (1.0 - 0.3)d = 0.7(d) = 0.7d

All of these options are equal to the price after the sale, except A.

A is the answer to question 24

22)  m > 0, n > 0    Use an example to represent m and n

m = 1,  n = 2 = -0.5

-0.5 is a rational, negative number

The answer to question 22 is B

Hope this helps :)

5 0
3 years ago
Last page almost done need this asap plz help
Anastaziya [24]

Answer:

Step-by-step explanation:

5.

a.

Variable y is independent

Variable x is dependent

b.

f_f(x)=0.063*x+0 . Computer's best guess is this given the points. Needing further information. [DO NOT TRUST THIS ANSWER] (for b.)

c.

Unit rate = a rate for one of something. Calculate how much y, cost increases for one fluid ounces, x.

d.

Cost, y = 2.

6.

a.

y = [UNABLE TO FIND]

b.

Let's say user chooses a random area of 6. 6 = 1/2bh. We know, in accordance to the table that the height, x correlating to area, 6 is 2.

1/2 * 2 = 1

1 * b  = 6, b = 6.

7.

a.

y = 64x

In accordance to the graph,  an increase of 128 miles takes 2 hours. That means in 1 hour, there is an increase of 64 miles.

b.

64 miles per hour.

[25 MINUTES SPENT]

Like Anxdy's answer to your doubt? Be sure to thank him, give him a rating, or award him!

4 0
3 years ago
Ray earns $15 an hour for up to 40 hours a week. If he works more than 40 hours a week, he is paid time and a half. That means R
nekit [7.7K]

Answer:

$7.50

Step-by-step explanation:

His normal pay is $15/h

Find the OT pay:

OT pay is 150% of his normal pay. Convert 150% to a decimal by dividing by 100 to find the rate in decimal form.

150%/100 = 1.5

Multiply his normal pay by the rate in decimal form.

$15 X 1.5 = $22.5

His OT pay is $22.5/h.

Additional money

= (OT pay) - (Normal pay)

= $22.5 - $15

= $7.5

We always use two decimal places for money.

$7.5 = $7.50

For every hour he works over 40 hours, he is paid an additional $7.50.

5 0
4 years ago
Solve for x: 2(x + 3)2 − 4 = 0
Ivan
The answer would be the second one
8 0
3 years ago
Read 2 more answers
4. Find all the solutions to each equation.<br> x2=81<br> x2=100<br> x=12
alisha [4.7K]

Answer:

x2=81    x=9 and x=-9

x2=100  x=10 and x=-10

x=12      nothing you can solve for in this equation. X=12

Step-by-step explanation:

x2=81

Divide 81 by 2 and get x by it self

x2=100

Divide 100 by 2 and get x by it self

6 0
3 years ago
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