3 years ago

A 2.4m piece of ribbon is to be divided into three equal lengths to go around some

Mathematics

2 answers:

Nookie1986 [14]3 years ago

8 0

Answer: 80 cm

Step-by-step explanation:

2.4 divided by 3 is 0.8

To convert m to cm multiply by 100

100 x 0.8 = 80

Kruka [31]3 years ago

3 0

Answer:

Each piece of ribbon will be 80 cm or 0.8m

Step-by-step explanation:

Hope this helps!

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Find x and y for the following problem.

Luba_88 [7]

Answer:

x = 5/4

y = 7/4

Step-by-step explanation:

The smaller triangle and the larger one are similar, so the sides are proportional.

(x+5)/5 = 10/8

x/5 + 1 = 1/4 + 1 . . . . . divide it out

x/5 = 1/4 . . . . . . . . . . .subtract 1

x = 5/4 . . . . . . . . . . . . multiply by 5

___

For y, you can do exactly the same computations, replacing every instance of 5 with a 7. Then you get ...

y = 7/4

8 0

3 years ago

The Roosevelt Branch Library is open daily from 9:00 A.M. until 4:30 P.M., 255 days a year. How many hours in all is the library

kramer

Lets look at the hours they are open from. 9 am - 4:30 pm which is 7 and a half hours a day. Now we multiply 7 1/2 by the number of days they are open, which will be 7 1/2 * 255 = 1,912.5. This means that the library is open 1,912 1/2 hours a year.

I hope I've helped! :)

3 0

2 years ago

Read 2 more answers

The number 20 is no less than the difference of 4 times a number c and 8.

sammy [17]

Answer:

20 >= 4*c - 8

Step-by-step explanation:

5 0

2 years ago

Find the equation in standard form of the line passing through the points (2,-3) and (4,2)

mario62 [17]

The line passes through (2,-3) and (4,2).

Calculate the slope of the line.
m = (2+3)/(4-2) = 5/2

The equation of the line is therefore
$\frac{y-2}{x-4} = \frac{5}{2}$

Cross multiply.
2(y-2) = 5(x-4)
2y - 4 = 5x - 20
2y = 5x - 16
Rewrite as
5x - 2y = 16

Answer: C. 5x - 2y = 16

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3 years ago

Solve A= a+b/2 for b

Neporo4naja [7]

Answer:

1/0

Step-by-step explanation:

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2 years ago