All categories

3 years ago

What’s the answer????

Mathematics

1 answer:

PolarNik [594]3 years ago

7 0

Hey bro when I did I was

You might be interested in

Maria is having a party and wants to have 100 ballons. it takes 4 minutes to blow up and tie a balloon. If 5 people are blowing

aev [14]

100 balloons × 4 Minutes = 400minutes
400minutes ÷ 5people = 80 ...so 80 minutes is your answer.

3 0

3 years ago

Read 2 more answers

Simplify the expression.<br> (5x + 1/2) + (3x - 7 1/2)

aleksklad [387]

Answer:

8x - 7

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Ron's recycle shop had an old paper-shredding machine. Business was good, so he bought a new paper-shredding machine. The old ma

levacccp [35]

Answer: 1 hour 20 minutes

Step-by-step explanation:

Given : The old machine could shred a truckload of paper in 4 hours.

Rate of work done by old machine = $\dfrac{1}{4}$

The new machine could shred the same truckload in 2 hours.

Rate of work done by new machine = $\dfrac{1}{2}$

Let 't' be the time taken by both of them working together , then we have the following equation:-

$\dfrac{1}{t}=\dfrac{1}{4}+\dfrac{1}{2}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{1+2}{4}\\\\\Rightarrow\dfrac{1}{t}=\dfrac{3}{4}\\\\\Rightarrow t=\dfrac{4}{3}=1\dfrac{1}{3}\ \text{ hours}$

Since 1 hour = 60 minutes

Then, $\dfrac{1}{3}\ \text{ hours}=\dfrac{1}{3}\times60=20\text{ minutes}$

Hence, it will take 1 hour 20 minutes to shred the same truckload of paper if Ron runs both shredders at the same time.

8 0

4 years ago

I flip three fair coins, each with a 50-50 probability of getting heads or tails. I do not show you the results, but I tell you

forsale [732]

Answer:3/7

Step-by-step explanation:

Since a coin has a head(H) and a tail(T), if two coins are flipped, the total outcome will be 4 i.e(HH, HT, TH and TT)

If 3coins are now flipped, then we will have 8total possible outcomes. The general formula being '2^n' where n is the number of coins.

The outcomes will be matching (H,T) with (HH, HT, TH, TT) to give (HHH, HHT, HTH, HTT, THH, THT, TTH and TTT). Since at least one if the 3coins shows head, then we have 7total possible outcomes excluding TTT.

Probability that exactly two of the three coins shows head (possible outcome/total outcome)

Exactly 2heads are HHT,HTH and THH(3possible outcomes)

Total outcome is 7

P(exactly two heads) = 3/7

4 0

3 years ago

I need a answer as soon as possible

alekssr [168]

Answer:

Step-by-step explanation:

Because 180-113 is 67.

8 0

3 years ago

Read 2 more answers