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vaieri [72.5K]
2 years ago
15

Pus

Mathematics
1 answer:
KiRa [710]2 years ago
7 0

Answer:

3.3h

Step-by-step explanation:

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Kevin spent 10 hours doing homework last week. This week he spent 15 hours doing homework. He says that he spent 150% more time
agasfer [191]
No he is wrong because 75% more time would be spent doing homework
6 0
3 years ago
Solve and verify please solve​
RUDIKE [14]

Answer:

Below in bold.

Step-by-step explanation:

I'll solve a few of them to illustrate the method:

a) 5x - (3x - 1) = x - 4

The aim is to get all the 'x' terms to one sides of the '=' and the numbers to the other side:

Distribute the negative over the 3x - 1 in the parentheses:

5x - 3x + 1 = x - 4        ( Note that  -* -1 = + 1)

Now subtract  1 from both sides:

5x - 3x + 1 - 1 = x - 4 - 1

5x - 3x = x - 5

Now subtract x from both sides:

5x - 3x - x = x - x - 5.

2x - x = -5

x = -5.

(b) 3/5 x + 1 = 2/5 - 3x

We first get rid of the fractions by multiplying each term by 5:

5 * 3/5 x + 1*5 = 5 * 2/5 - 5*3x

3x + 5 = 2 - 15x

3x + 15x + 5 = 2 - 15x + 15x        (adding 15x to both sides)

18x + 5 = 2          Subtract 5 from both sides:

18x + 5 - 5 = 2 - 5

18x = -3

Now we divide both sides by 18:

x = -3/18 = -1/6.

g) 0.3(6 + m) = 0.4(8 - m)

0.3 * 6 + 0.3* m = 0.4*8 + 0.4 * -m   ( Distributing the 0.3 and 0.4 over the parentheses)

1.8 + 0.3m = 3.2 - 0.4m        ( recall that + * - = -)

1.8 - 1.8 + 0.3m = 3.2 - 1.8 - 0.4m

0.3m = 1.4 - 0.4m

0.3m + 0.4m = 1.4 - 0.4m + 0.4m

0.7m = 1.4

m = 1/4/0.7

m =  2.

I hope this helps.

5 0
3 years ago
Which of the following graphs is the same as y=log1/2^x
sertanlavr [38]
I dont know the log in so guess and you have chance to do it y=log
8 0
1 year ago
a cylindrical well has a radius of 10 feet and a height of 15feet .what volume of water will it take to fill in the well.
drek231 [11]
First, set up the formula.
V=pi*r^2*h
Substitute 10 for r and 15 for h.
V=pi*10^2*15
V=pi*100*15
V=pi*1500
V=4710 cubic feet
It takes 4710 cubic feet of water to fill the well.
5 0
3 years ago
What’s the algebraic expression of this expression? Only answer if you know
iren2701 [21]

Answer:

a³ + 5c

Step-by-step explanation:

That would be, symbolically, a³ + 5c

5 0
3 years ago
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