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3 years ago

8. Ally bikes 4 5/8miles in 3/8 of an hour. What is the unit rate at which Ally is biking?

Mathematics

1 answer:

Katena32 [7]3 years ago

5 0

Answer:12.33

Step-by-step explanation:

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Ben walks 25 miles from home to work. If he walks the first 5 miles in 1 hour, the second 5 miles in 1.4 hours, the third 5 mile

natka813 [3]

Answer:

The total time taken to complete 25 miles is 7.6 hours.

Solution:

Ben walks 5 miles in 1 hour,

Second 5 miles in 1.4 hours,

Third 5 miles in 1.7 hours,

Last 5 miles in 1.8 hours

So he walked total 20 miles in (1+1.4+1.7+1.8) hours = 5.9 hours = 6 hours (approximately)

So his average speed is $\left(\frac{20}{6}\right)$ miles/hours = 3.33 miles/hours.

i.e. he travels 3.3 miles in 1 hour,

Then, he travels 1 miles in $\left(\frac{1}{3.3}\right)$ hours

Hence the total time he will take to walk 25 miles is $\left(25 \times\left(\frac{1}{3.3}\right)\right) \text { hours }$ $\Rightarrow \left(\frac{25}{3.3}\right) \text { hours } = 7.5757 hours$

That is approximately 7.57 or 7.6 hours.

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3 years ago

Any got an answer for this math question?

Kamila [148]

Answer:the answer this is negative 3

Step-by-step explanation:

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3 years ago

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State the value of the discriminant for the equation, 3x^2 + 7x + 3 = 0

Irina-Kira [14]

Answer: 13

Step-by-step explanation:

If you remember the quadratic equation formula;

$x=\frac{-b\frac{+}{}\sqrt{b^2-4ac} }{2a}$

You can easily extract what is under the root to find the discriminant.

$b^2-4ac=?\\$

a = 3

b = 7

c = 3

$(7)^2-4(3)(3)\\49-36=13$

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3 years ago

Which is a perfect square? O 20 0 21 O 24 O 25

Juliette [100K]

Answer:

Step-by-step explanation:

(5)² = 25 OR √25 = 5

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3 years ago

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Find the ratio of the area of the first figure to the area of the second.

geniusboy [140]

I think the answer would be 36:16 because if you do the area of the first figure (6x6) it equals 36 and the second figure (4x4) it equals 16

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2 years ago