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2 years ago

Read the word problem below.

Mathematics

2 answers:

salantis [7]2 years ago

5 0

Answer:

1 3/5 miles/hr

Step-by-step explanation:

Let C be the speed of the current

Let D be the distance between Chan's house and the park

We know that Distance, D, is = Speed x Time

-----

Chan's speed going upstream is (8 - C)mph.

That gives us:

D = (8-C)(3 hr)

Chan's speed going downstream is (8+C)mph

So we have:

D = (8+C)(2 hr)

We know that the d is the same for these two equations, so:

(8-C)(3 hr) = (8+C)(2 hr)

24 - 3C = 16 + 2C

5C = 8

C = (8/5) or 1 3/5 mph

Anon25 [30]2 years ago

5 0

Answer:

1.6 mph

Step-by-step explanation:

Distance, speed, and time are related by ...

distance = speed × time

We assume that the distances up and back are the same, so for a current speed of c, we have ...

3(8 -c) = 2(8 +c)

24 -3c = 16 +2c . . . eliminate parentheses

8 = 5c . . . . . . . . . . add 3c-16 to both sides

c = 8/5 = 1.6 . . . . . divide by 5

The speed of the current is 1.6 miles per hour.

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Roisin is a price analyst for a food distributor. One week she put together bids for 680 cases, 507 cases, 830 cases, 391 cases,

sineoko [7]

Answer: The average number of cases per bid is 599.

Step-by-step explanation:

Given: One week she put together bids for 680 cases, 507 cases, 830 cases, 391 cases, and 587 cases.

Total cases = 680 + 507 + 830 + 391+587

= 2995

Number of bids = 5

Now, average number of cases per bid = $\dfrac{\text{Total cases }}{\text{Number of bids}}$

$=\dfrac{2995}{5}\\\\=599$

Hence, the average number of cases per bid is 599.

6 0

3 years ago

Enter Brackets To Make The Statement 10 + 2 x 3²– 2 = 254

muminat

Consider expression $(10+2\cdot 3)^2-2$ :

1) $2\cdot 3=6;$

2) $10+2\cdot 3=10+6=16;$

3) $(10+2\cdot 3)^2=16^2=256;$

4) $(10+2\cdot 3)^2-2=256-2=254.$

Answer: $(10+2\cdot 3)^2-2=254.$

3 0

3 years ago

26 points A stoplight has the following cycle: green for 25 seconds, yellow for 4 seconds, and red for 2 minutes. What is the pr

Anika [276]

Answer:

25+4+120(2min) = 149

25/149 = 0.16778523489932885906040268456376

= (rounded) 0.17

3 0

4 years ago

Read 2 more answers

The millers are going to put a pool in their backyard this summer. The pool will have a depth of 5 feet, and the dimensions show

erica [24]

Answer:

D : 510 units

Step-by-step explanation:

NOTE:

Something to consider when solving problems like this is to break the large shape down into smaller, more managable shapes. So for this problem, you can break down this irregular shape into two rectangles. This will make solving problems similar to this easier in the future :)

WORK:

I broke down this shape into two rectangles with the following dimensions:

- 12 meters by 5 meters

- 3 meters by 14 meters

You also know that the depth has to be 5 feet (the problem itself did not account for differences in feet and meters, as when I converted the 5 feet to meters and solved that way, none of the answers were correct)

Using this information, you can now solve for the volume of each of the rectangles

12*5*5 = 300 units

3*14*5 = 210 units

Then, you simply add the two volumes together to find the total volume needed to fill the pool which equals

510 units

3 0

3 years ago

PLEASE HELP NEED ANSWERS ASAP!

gavmur [86]

The greatest common factor of 20 and 14 is 2.

The greatest common factor of x^3 and x is x.

The answer is C. 2x

4 0

3 years ago

Read 2 more answers