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2 years ago

A fish tank holds 90 gallons of water is 40% full. How many more gallons are needed to fill the tank?

Mathematics

2 answers:

Alex17521 [72]2 years ago

8 0

Answer:

36 more gallons

Step-by-step explanation:

90 x .4

Galina-37 [17]2 years ago

4 0

110 gallons because you know that 90 is 40% of that so take 90 and double it and then add 20 to it because that is 20% left

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ycow [4]

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3 years ago

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Yuri thinks that 3/4 is a root of the following function. q(x) = 6x3 + 19x2 – 15x – 28 Explain to Yuri why 3/4 cannot be a root.

k0ka [10]

Answer:

Yuri is not correct.

Step-by-step explanation:

Given expression is q(x) = 6x³ + 19x² - 15x - 28

If 'a' is a root of the given function, then by substituting x = a in the expression, q(a) = 0

Similarly, for x = $\frac{3}{4}$ ,

$q(\frac{3}{4})=6(\frac{3}{4})^3+19(\frac{3}{4})^2-15(\frac{3}{4})-28$

= $6(\frac{27}{64})+19(\frac{9}{16})-15(\frac{3}{4})-28$

= $(\frac{162}{64})+(\frac{171}{16})-(\frac{45}{4})-28$

= $(\frac{162}{64})+(\frac{684}{64})-(\frac{720}{64})-\frac{1792}{64}$

= $-\frac{1666}{64}$

= $-\frac{833}{32}$ ≠ 0

Therefore, Yuri is not correct. x = $\frac{3}{4}$ can not be a root of the given expression.

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3 years ago

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A bus travels 36 miles in 45 minutes. Enter the number of miles the bus travels in 60 minutes at this rate.

kompoz [17]

Answer:

The answer would be 48 miles in 60 minutes. I hope that helps!

Step-by-step explanation:

36 x 60 = 2160

45n = 2160

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