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Papessa [141]
3 years ago
7

Jose has 8 2/3 cups of plaster of Paris powder. If Jose uses 5 3/5 cups of sculpture, how much plaster will he have left?

Mathematics
1 answer:
grigory [225]3 years ago
6 0

Answer:  

3 1/15

Step-by-step explanation:

8 2/3 - 5 3/5

find the LCD(least Common denominator)

8 10/15    -  5  9/15   =  3 1/15

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One number is 2 more than another. The difference between their squares is 20. What are the numbers?
ss7ja [257]

Answer:

let x=one number =

x-2= another number

x²- (x-2)²=20

x²-x²-4x+4=20

-4x=20-4

-4x=16

x=16/-4

x=-4

one number is -4

x-2

-4-2

=-6

the another number is -6

4 0
3 years ago
Patrick is keeping track of how far he jogs each morning.
katrin2010 [14]

Answer:

21:50

Step-by-step explanation:

We need to find the ratio of 420 m to 1 km.

We know that,

1 km = 1000 m

So,

The ratio becomes,

\dfrac{420\ m}{1\ km}=\dfrac{420\ m}{1000\ m}\\\\=\dfrac{42\ m}{100\ m}\\\\=\dfrac{21}{50}

So, the required ratio is 21:50.

5 0
3 years ago
1) What is the first x in x + 3x = 16?
Lyrx [107]
1. x=22/5
2. x=4
3. x=4
5 0
2 years ago
Express the following as a single number (2×1000)+(4×100)+(7×10)​
TiliK225 [7]

Answer:

2470

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5 0
2 years ago
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