Ask question

Ask question

All categories

3 years ago

5

-3/5 - 7/5 - -2/5 equals

2 answers:

gregori [183]3 years ago

8 0

The answer is -8/5.....

12345 [234]3 years ago

6 0

I think it equals -1.6.

You might be interested in

A Boston subway train traveling at constant speed traveled 10.1 miles in half an hour. What was the speed of the subway train?

Klio2033 [76]

Speed of the train : distance traveled / time of the travel = 10.1/(0.5)=<span>20.2 mph. Hope this helped!</span>

7 0

3 years ago

Read 2 more answers

Help, what is the answer

sp2606 [1]

The answer is d as in dog

4 0

3 years ago

Read 2 more answers

Ronch [10]

Answer:

<em><u>1 and 5</u></em>

Step-by-step explanation:

The squares have a side length of 10 and 1 square side is the radius of the half-circles. Since there are two half-circles, find the circumference for one full circle:

$C=2\pi r$

Insert the radius:

$r=10\\C=2\pi *10$

Simplify pi:

$C=2*3.14*10$

Simplify multiplication:

$C=6.28*10\\C=62.8$

The circumference of the circles is 62.8. Now find the perimeter of the exposed squares with side length 10. There are 4 exposed sides, which equals one square. Find the perimeter:

$P=10+10+10+10\\P=10+10+20\\P=10+30\\P=40$

Add the perimeter of the circle and the square together:

$P=62.8+40=102.8$

Now see which of the options gives you the perimeter:

1. $40+20\pi =102.8$ ****

2. $unavailable$

3. $120+20\pi =182.8$

4. $300+100\pi =614.2$

5. $10+10+10\pi +10+10+10\pi =102.8$ ****

Finito.

7 0

2 years ago

Find the value of the variable using these steps.

mash [69]

Step-by-step explanation:

0.4 x + 3.9 = 5.7

hope 0.4 x = 5.78 - 3.9

0.4x = 1.88

x = 1.88/0.4

x = 4.7

3 0

3 years ago

Read 2 more answers

A ball is tossed between three friends. The first toss is 8.6 feet, the second is 5.8 feet, and the third toss is 7.5 feet, whic

algol13

Answer:

The angles are 79.45, 59.02 and 41.53 degrees to the nearest hundredth.

Step-by-step explanation:

We have a triangle with sides of length 8.6, 5.8 and 7.5 feet.

Using the Cosine Rule to find the measure of the angle opposite the side of length 8.6 feet:

cos X = (8.6^2 - 5.8^2 - 7.5^2) / ( -2*5.8*7.5)

= 0.18310

X = 79.45 degrees.

We can now find another angle using the sine rule:

8.6 / sin 79.45 = 7.5/ sin Y

sin Y = (7.5 * sin 79.45) / 8.6

Y = 59.02 degrees

So the third angle = 180 - 79.45 - 59.02

= 41.53 degrees.

3 0

3 years ago