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3 years ago

Describe a real-world situation that is a model by multiplying two fractions or mixed numbers

1 answer:

4 0

Construction.

When construction workers need measurements that are fractions they need to be able to multiply/add/subtract/divide all of those different fractions and mixed numbers.

I hope I was able to help. Best of luck.

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What is this plz help

MissTica

It’s weird. that’s what it is

8 0

2 years ago

Read 2 more answers

the sum of the two trains is 723.5 mph if the speed of the first train is 12.5 mph faster than that of the second train find the

jonny [76]

First, let's see if we can rewrite this word problem a little bit more mathematically. We won't get to mathy or technical so no worries. We just want to look at it in a more straightforward way, if we can.

Train A's mph plus Train B's mph summed equal 723.5 mph. Train A's mph is greater than Train B's mph by 12.5 mph.
So what should we do to solve this problem? Since we are dealing with two of something and we know the value of the two combined, it might make sense to start by dividing that value by 2.
723.5 / 2 = 361.75. If the two trains were travelling at the same speed, we would be done. Unfortunately, they are not so we need to think about this some more.
Train A is going 12.5 mph faster than Train B. Let's rewrite.
Train A mph = 12.5 + 361.75 = 374.25 Okay, so Train A is travelling at a speed of 374.25 mph. So we're done right? Not exactly. We are asked to fing the speeds of BOTH trains. How do we find the speed of Train B? We have added a portion of the combined total to Train A. It seems to follow, then, we should probably subtract the same portion from Train A. What are we going to do? You guessed it! Rewrite.
Train B mph = 361.75 - 12.5 = 349.25 HA HA! We seem to have figured it out. Let's do one last thing to check our work. Let's add the two trains' speeds together. If we did this right, we should get our summed value of 723.5 mph
374.25 + 349.25 = 723.5
Pat yourself on the back! We did it!

374.25 + 349.25 =

3 0

3 years ago

Read 2 more answers

Chelsey wants to join a fitness club. She has a coupon that will give her $12.50 off the monthly rate for the first 6 months. Wi

Ratling [72]

The regular monthly fee without coupon is $ 50

Solution:

Given that, Chelsey wants to join a fitness club

With the coupon, her total cost for the 6 months is $225

Therefore,

With coupon cost for 6 months = 225

She has a coupon that will give her $12.50 off the monthly rate for the first 6 months

Therefore,

For 6 months, coupon gives a off of,

$12.50 \times 6 = 75$

Therefore,

Without coupon cost = 225 + 75 = 300

Thus the regular monthly fee without coupon is:

$\frac{300}{\text{ 6 months }} = 50$

Thus regular monthly fee without coupon is $ 50

8 0

3 years ago

How do you convert .3125 to 5/16

Lilit [14]

Answer: 625

Step-by-step explanation:

Here are the steps to convert .3125 into fraction form:

First we write .3125 as

.3125

Now we multiply both the numerator and denominator by 10 for each digit after the decimal point:

.3125

.3125 x 10000

1 x 10000

3125

10000

In order to reduce the fraction we find the Greatest Common Factor (GCF) for 3125 and 10000. Keep in mind a factor is just a number that divides into another number without any remainder.

The factors of 3125 are: 1 5 25 125 625 3125

The factors of 10000 are: 1 2 4 5 8 10 16 20 25 40 50 80 100 125 200 250 400 500 625 1000 1250 2000 2500 5000 10000

The Greatest Common Factor (GCF) for both 3125 and 10000 is: 625

3 0

2 years ago

Help with this please

Alchen [17]

Answer:

1) A player who came to bat 318 times had 80 hits.

2) If the number of staff members is increased by 1, the wait time will decrease by 1.62 minutes.

Step-by-step explanation:

Question 1)

The scatter plot is constructed between the number of times a player comes to bat and the number of hits they had. The x-axis shows the number of times a player comes to bat and y-axis shows the number of hits they had.

We need to tell what the point (318, 80) represents in context of this problem. The first number of the ordered pair is the position along x-axis and the second point is the position along y-axis.

Therefore, 318 is the number of times a player comes to bat and 80 is the number of hits the player had.

So, the point (318, 80) shows that a player who came to bat 318 times had 80 hits.

Question 2)

The scatter plot is constructed between number of minutes people had to wait at a restaurant (along y-axis) and the number of staff available at that time (along x-axis).

The linear model that represents the data is:

y = - 1.62x + 18

The slope of the line is - 1.62. Slope is defined as the rate of change i.e change in y variable w.r.t to change in x variable.

So, in this case the slope represents the change in wait time w.r.t change in staff available.

Slope - 1.62 in this scenario tells us that:

If the number of staff members is increased by 1, the wait time will decrease by 1.62 minutes.

Yes, this is a realistic measure. Increasing the staff member will help in serving the customers quickly which in turn will decreasing the wait time for customers.

3 0

3 years ago