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2 years ago

Change to a decimal. Round to hundredths if necessary. 1 5/8

Mathematics

2 answers:

Mrrafil [7]2 years ago

8 0

Step-by-step explanation:

1 5/8 cam be written as 13/8

now,

13/8 = 1.625

after rounding it in hundred so,

it's is 1.63

HOPE THIS HELPS YOU !

Inessa [10]2 years ago

6 0

$\sf1 \frac{5}{8}$

Write the mixed fraction as improper fraction

$\sf \frac{13}{8}$

Convert the fraction into decimal

$\sf= 1.625$

Round off to the nearest hundredth

$\sf \: 1.63$

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An oil tank has to be drained for maintenance. The tank is shaped like a cylinder that is 4 ft long with a diameter of 2.2 ft. S

gavmur [86]

Answer:

$8\:\mathrm{minutes}$

Step-by-step explanation:

The volume of a cylinder is given as:

$r^2\cdot\pi\cdot h$

Since the diameter is $2.2$ , the radius is $\frac{2.2}{2}=1.1$ .

Therefore, the volume of this cylinder is:

$1.1^2\cdot 3.14\cdot 4=15.1976\:\mathrm{ft^3}$ , using $\pi=3.14$ as requested in the problem.

Since the tank is emptied at a constant rate of $1.5\:\mathrm{ft^3\:per\:minute}$ , it will take

$\frac{15.1976}{1.5}=7.5988=\fbox{$8\:\mathrm{minutes}$}$ to empty the tank.

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3 years ago

A semicircular window with a RADIUS OF 20 inches is going to be laminated with a sunblock coating that costs 1.50 PER SQUARE INC

yan [13]

Answer:

B:942$

Step-by-step explanation:

(pi*20^2)/2 is approximately 628.32

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3 0

2 years ago

Read 2 more answers

How do you find the value of x and the length of the indicated segment

kaheart [24]

You have to multiply

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2 years ago

a jar contains nickels and pennies. there are 56 coins in the jar in all. the total value of the coins is 1.52. how many pennies

nevsk [136]

1 penny is just 1c
one nickel is 5 pennies or 5c

alrite...

p = amount of pennies in the jar
n = amount of nickels in the jar

we know there are 56 coins in the jar, thus whatever "p" and "n" are,

p + n = 56

we also know, the total value of all pennies and nickels is one buck and 52 cents, or 1.52.. that's 152 pennies.

now, we know there are 5 pennies in one nickel, so in "n" nickels, there are 5*n pennies, or 5n, thus

p + 5n = 152

$\bf \begin{cases}
p+n=56\implies \boxed{n}=56-p\\
p+5n=152\\
----------\\
p+5\left( \boxed{56-p} \right)=152
\end{cases}$

solve for "p", to see how many penny coins are there.

what about the nickels? well, n = 56 - p.

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3 years ago

Use the estimate in the text based on the Prime Number Theorem to give approximate values of the following. (a) The number of pr

ozzi

Answer:

a)148.47

b)148.34

Step-by-step explanation:

Let π(x) be the prime-counting function that gives the number of primes less than or equal to x, for any real number x. For example, π(7) = 4 because there are four prime numbers (2, 3, 5, 7) less than or equal to 7.

We can see that π(7)=π(10) because there are four prime numbers (2,3,5,7) less than or equal to 10.

A good aproximation for π(x) is x / log x, where log x is the natural logarithm of x.

a)The number of primes between 1 and 1030.

1030/log(1030)=148.47

b) The number of primes between 1 and 1029.

1029/log(1029)=148.34

Extra: π(1029)=π(1030) because 1030 is not a prime.

5 0

3 years ago