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2 years ago

What is the difference of 3.14 and the sum of 5.99 and 0.65?

Mathematics

1 answer:

charle [14.2K]2 years ago

3 0

Answer:

3.5

Step-by-step explanation:

5.99+0.65=6.64

6.64-3.14=3.5

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Find the mean of 3,2,2,5,1,3,2,0,5<br>

LekaFEV [45]

Answer:

2.56

Step-by-step explanation:

(3+2+2+5+1+3+2+0+5)/9=2.55555555556...

8 0

2 years ago

If y varies directly with x, find the missing value below.<br><br> (2, -34) and (x, 85)

DedPeter [7]

Answer:

X= -5

Step-by-step explanation:

y varies directly with x,

so y=kx

-34=k×2

k= -17

85= -17× X

X= -5

8 0

2 years ago

Wally wants to determine the height of a statue that casts a 164-inch shadow by comparing it to his own height and shadow length

nataly862011 [7]

We have been given that Wally wants to determine the height of a statue that casts a 164-inch shadow by comparing it to his own height and shadow length. Wally is 68 inches tall, casts a shadow that is 41 inches in length.

We will use proportions to solve for the height of the statue because proportions state that ratio between two proportional quantities is same.

$\frac{\text{Height of statue}}{\text{Shadow of statue}}=\frac{\text{Height of Wally}}{\text{Shadow of Wally}}$

Upon substituting our given values in above equation, we will get:

$\frac{\text{Height of statue}}{\text{164 cm}}=\frac{\text{68 inch}}{\text{41 inch}}$

$\frac{\text{Height of statue}}{\text{164 cm}}\times \text{164 cm}=\frac{\text{68 inch}}{\text{41 inch}}\times \text{164 cm}$

$\text{Height of statue}=\frac{\text{68 inch}}{1}\times 4$

$\text{Height of statue}=272\text{ inches}$

Therefore, the height of the statue is 272 inches.

5 0

3 years ago

henry can write 5 pages of his novel in 3 hours at this rate how many pages can henry write in 8 hours

My name is Ann [436]

Answer:

Henry can write 13 pages in 8 hours.

it can also be written as 13.3

4 0

3 years ago

Read 2 more answers

The half life of radium is 1690 years. if 80 grams are present now, how much will be present in 830 years

Pachacha [2.7K]

Answer:

A(t) = amount remaining in t years

= A0ekt, where A0 is the initial amount and k is a constant to be determined.

Since A(1690) = (1/2)A0 and A0 = 80,

we have 40 = 80e1690k

1/2 = e1690k

ln(1/2) = 1690k

k = -0.0004

So, A(t) = 80e-0.0004t

Therefore, A(430) = 80e-0.0004(430)

= 80e-0.172

≈ 67.4 g

Step-by-step explanation:

5 0

2 years ago