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3 years ago

Round the following 8.388 to 2 decimal places

Mathematics

1 answer:

Roman55 [17]3 years ago

3 0

The answer will be 8.39 because the third number (8) is above 5 so you have to round up. Good luck!

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Kathy has $2.10 in her pocket. She only has two different types of coins. She has the same number of each coin. What kinds of co

sweet-ann [11.9K]

Answer:

6 quarters and 6 dimes

Step-by-step explanation:

since there is 6 quarters it would be 6x$.25 which is $1.50, and each dime is worth 10 cents so 6x$.10 is $.60, and $1.50+$.60=$2.10

5 0

2 years ago

Pedro can drive 2 times as fast as Pablo can ride his bicycle. If it takes Pablo 2 hours longer than Pedro to travel 72 miles, h

galben [10]

Pablo can ride his bicycle with speed of 18 miles per hour

Solution:

Given, Pedro can drive 2 times as fast as Pablo can ride his bicycle.

Let the speed of Pablo be "n" miles per hour

Then the speed of the Pedro will be "2n" miles per hour

Now, If it takes Pablo 2 hours longer than Pedro to travel 72 miles,

We have to find how fast can Pablo ride his bicycle?

The formula for speed is given as:

$\text { distance }=\text { speed } \times \text { time }$

Let the time taken by Pedro to travel 72 miles be "t" hours, then time taken by Pablo will be "t + 2" hours

In case of Pablo:

$\begin{array}{l}{72 \text { miles }=\text { speed } \times (t+2) \text { hour }} \\ {\rightarrow 72=n \times(t+2) \rightarrow(1)}\end{array}$

In case of Pedro:

$\begin{array}{l}{72 \text { miles }=\text { speed } \times \text { thours }} \\ {\rightarrow 72=2 n \times t \rightarrow(2)}\end{array}$

Then, equate both (1) and (2)

$\begin{array}{l}{n \times(t+2)=2 n \times t} \\\\ {\rightarrow t+2=2 \times t} \\\\ {\rightarrow t+2=2 t} \\\\ {\rightarrow 2 t-t=2} \\\\ {\rightarrow t=2}\end{array}$

Now, substitute t = 2 in (2)

$\begin{array}{l}{\rightarrow 72=2 n \times 2} \\\\ {\rightarrow 72=4 n} \\\\ {\rightarrow n=18}\end{array}$

Hence, the speed of Pablo is 18 miles per hour.

3 0

3 years ago

they can chose from blue,red or green shorts and white ,black or purple shirts and yellow or orange socks How many combinations

HACTEHA [7]

There are 18 possible combinations

8 0

3 years ago

How do you find profit

Tcecarenko [31]

Answer:

Step-by-step explanation:

Determine the net income (subtract the total expenses from the revenue).

Divide the net income by the revenue.

Multiply the result by 100 to arrive at a percentage.

Hope this helps :)

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3 years ago

What is the slope of each line? line a: y=1/2x-4 line b: y=2x-3

MariettaO [177]

Y=mx + b
m is the slope

The slope of line 1 is 1/2

The slope of line 2 is 2

8 0

3 years ago