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garri49 [273]
3 years ago
5

NEED HELP! Thanks!

Mathematics
1 answer:
sladkih [1.3K]3 years ago
6 0
I think the answer would be 7.5 hours or 4 hours,not so sure which one exactly

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Pls help me with this. Show your work and solve that is it.
Minchanka [31]

Answer:

5\sqrt{18}-\sqrt{32} \\=5 \sqrt{3 \times 3 \times 2}  -  \sqrt{2 \times 2 \times 2 \times 2 \times 2}  \\  = 5 \times 3 \times  \sqrt{2}  - 2 \times 2 \times  \sqrt{2}  \\  = 15 \sqrt{2}  - 4 \sqrt{2}  \\  =  \boxed{11 \sqrt{2} }

<h3>11√2 is the right answer.</h3>
8 0
3 years ago
What percent of 300 is 300?
SIZIF [17.4K]
300/1=<span>1/300
100%
300 is 100% of 300</span>
8 0
3 years ago
Read 2 more answers
The solution set of the inequality
Dahasolnce [82]

Answer:

x ≤ 1

Step-by-step explanation:

Sign flips because we divided a negative number

Give brainliest if possible please ^-^

8 0
3 years ago
Read 2 more answers
Megan went to the store and bought 4 notebooks and 9 pencils for a total of $8.25. Joanne went to the same store and bought 7 no
Rzqust [24]
Let notebooks be x and let pencils be y

4x+9y=8.25 (equation 1)
7x+14y=14.00 (equation 2)

Multiply equation 1 by 7
So that you get 28x+63y=57.75

Multiply equation 2 by 4
So that you get 28x+56y=56.00

28x+63y=57.75 -
28x+56y=56.00
-----------------------
7y=1.75

Divide both sides by 7
1.75/7 is 0.25

So, now we know that one pencil costs 0.25 cents

Sub this y value into equation one

4x+9(0.25)=8.25

4x+2.25=8.25

Move 2.25 to the other side as a negative number

4x= 6

Divide both sides by 4

6/4 is $1.50

So, one pencil is equal to 0.25 cents and one notebook is equal to $1.50
5 0
3 years ago
Which line has an equation of y = negative 5 x + 4 in slope-intercept form?
STALIN [3.7K]

Answer:

well is there a graph to this question if not then its hard to answer.

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
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