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Roman55 [17]
3 years ago
11

I need help with 15?????

Mathematics
2 answers:
Zina [86]3 years ago
4 0
you can see it on my phone was on my phone is dead to the hospital for the next
ss7ja [257]3 years ago
4 0
What about 15. can you explan so I can help
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A glass is 4/7 full. Then 70 cm³ orange juice is poured in. The glass is now 3/4 full.
Nataly_w [17]

Answer:

The volume of the glass is 217.8 cm³

Step-by-step explanation:

If the glass were initially 4/7 full, that means 3/7 of the volume is still available to hold more juice.

Let v represent the volume of the glass.  

Then (3/7)v + 70 cm³ = (3/4)v.

We need to solve this for v.

Here the LCD is 28.  Thus,

(3/7)v + 70 cm³ = (3/4)v →  (12/28)v + 70 cm³ = (21/28)v.

Subtracting  (12/28)v from both sides, we get:

70 cm³ = (9/28)v.

We can isolate v by mult. both sides by the inverse of 9/28, which is 28/9:

(28/9)(70 cm³) = v

The volume of the glass is 217.8 cm³

3 0
3 years ago
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Brainliest pls help (dont have to show work)
Kitty [74]

Answer:

-2.35

Step-by-step explanation:

5 0
3 years ago
What is 3/4 of 240 4/5?
OLEGan [10]
180.6 is the answer 240 4/5 is 240.8
240.8/4 is 60.2
60.2 x 3 is your answer
6 0
3 years ago
Find an expression which represents the sum of (-8x+7y)(−8x+7y) and (2x-2y)(2x−2y) in simplest terms.
Yakvenalex [24]

Answer:

(-8x+7y)(−8x+7y)+(2x-2y)(2x−2y)= simplified - 68x^2+53y^2−120xy

I hope this helps ! <3

Step-by-step explanation:

3 0
3 years ago
What’s The coefficient in the expression 7x+ 14
nydimaria [60]

Answer:

7 is the coefficient.

3 0
3 years ago
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