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In-s [12.5K]
3 years ago
11

Question 8 is attached! Please explain how you got your answer.

Mathematics
1 answer:
AURORKA [14]3 years ago
5 0
I hope this helps you

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Factor completely 16x^2-81
Natasha_Volkova [10]

Answer:

(4x-9) times (4x+9)

Step-by-step explanation:

7 0
3 years ago
The table below summarizes the number of children per household for a sample of 29 families
atroni [7]
Can you please provide a photo so I can help you?
6 0
3 years ago
Erica needs 5 1/2 gallons of paint to paint her house. She has 3 1/2 gallons of paint at school and her friend can give her 1 3/
Dima020 [189]

Answer:

Erica needs 1/4 more gallons of paint.

Step-by-step explanation:

3 1/2 + 1 3/4 = 5 1/4

in order to get 5 1/4 to 5 1/2, you need to add another quarter.

So:

5 1/4 + 1/4 = 5 1/2

3 0
3 years ago
Read 2 more answers
The dimensions of the tank are 50 cm by 32 cm by 20 cm. The tank is full of water and sand. The ratio of the volume of water to
Sauron [17]

Given:

Dimensions of a tank are 50 cm by 32 cm by 20 cm

The tank is full of water and sand

Ratio of volume of water to the volume of sand is 5:1

To find:

Volume of water in the tank in liters

Solution:

Without loss of generality, let,

Length of tank = 50 cm

Breadth of tank = 32 cm

Height of tank = 20 cm

Then, we have,

Total Volume of the tank = Length * Breadth * Height

\Rightarrow Total Volume = 50*32*20 cc

\Rightarrow Total Volume = 32000 cc

It is given that,

Volume of water : Volume of sand = 5:1

\Rightarrow (Volume of water)/(Volume of sand) = 5/1

Cross multiplying, we have,

Volume of sand = (Volume of water)/5

It is also given that the tank is full of water and sand. This implies that,

Volume of water + Volume of sand = Total Volume

Using the value, we obtained, we get,

Volume of water + (Volume of water)/5 = Total Volume

\Rightarrow (6 * Volume of water)/5 = Total Volume

Plugging in the value of total volume, we get,

\Rightarrow (6 * Volume of water)/5 = 32000 cc

\Rightarrow Volume of water = \frac{32000*5}{6} cc

\Rightarrow Volume of water \approx 26,666.6667 cc

We know that,

1 cc = 0.001 liters

\Rightarrow 26,666.6667 cc = (26666.6667 * 0.001) liters

\Rightarrow 26,666.6667 cc \approx 26.667 liters

Thus, Volume of water in the tank is approximately 26.667 liters

Final Answer:

Volume of water in the tank (in liters) is approximately 26.667 liters

4 0
2 years ago
Is 0.75 greater than 0.100?
Naya [18.7K]
Yes because you only need to look at the first decimal for problems like these and the first number you see a seven and a one and seven is greater than one
8 0
3 years ago
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