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andrey2020 [161]
3 years ago
8

Molly does 15% of her homework in study hall. If she spent 45 minutes on homework in stuffy hall, how much time in minutes dose

she need to spend on homework altogether?
Mathematics
1 answer:
kherson [118]3 years ago
6 0
The answer is 15/100 x 45 =6.75 minutes <span />
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What is the sum of 1 2/5 and 5 3/4​
Art [367]

Answer:

7\frac{3}{20}

Step-by-step explanation:

<em>Hey there!</em>

Well to add this we need to pu it in improper form.

7/5 + 23/4

Now we need to find the LCM.

5 - 5, 10, 15, 20, 25, 30

4 - 4, 8, 12, 16, 20, 24, 28

So the LCD is 20.

Now we need to change the 5 and 4 to 20.

5*4 = 20

7*4 = 28

<u>28/20</u>

4*5=20

23*5=115

<u>115/20</u>

Now we can add 28 and 115,

= 143/20

Simplified

7 3/20

<em>Hope this helps :)</em>

4 0
3 years ago
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Shern goes to the BX with $19. She buys a gift for her mom that costs $7.25. She also needs to make sure that she has $2.75 left
poizon [28]

Answer:

18 bags of skittles

Step-by-step explanation:

19-7.25-0.5x=2.75

=> -0.5x=-9

=> x=18

7 0
3 years ago
If i= square root of -1, what is the value of i^3
Ber [7]

Answer:

- i

Step-by-step explanation:

Set up equation.

i {}^{3}  = y

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6 0
3 years ago
I’m trying to prove this but I’m stuck... :( <br><br> Can someone help ?
Tom [10]
I can help, but what are you exactly trying to do here?
7 0
2 years ago
I have no idea what this is can someone please help
siniylev [52]
Plug in the number from f(x) with the x value

For example
f(9)=(9)^2-25
81-25
F(9)=56

That’s one answer.

Hope it helps!
4 0
2 years ago
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