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inna [77]
3 years ago
9

A 180 ft long board is cut into 3 pieces. The second piece of

Mathematics
2 answers:
blagie [28]3 years ago
6 0

Answer:

20 feet

Step-by-step explanation:

1st piece = x

2nd piece = 2x

3rd piece = 6x

x+2x+6x=180

9x=180

x=20

so the first piece is 20 feet, the second is 40, and the third is 120.

Taya2010 [7]3 years ago
6 0

Answer:

120

Step-by-step explanation:

multiplicas:

20 por 2, eso te da  40 lo que es la segunda pieza, finalmente  multiplica 20 por 6 lo cual te da 120, sumas esas 3 cifras: 20+40+120 y tendras como resultado 180, denada uwu

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For X, (3x-40°)=2x-10°)​
KATRIN_1 [288]

Hello!

3 x - 40^0 = 2 x - 10^0

3 x - 1 = 2 x - 1

3 x = 2x

3 x - 2 x = 0

Hence, the answer is 0

I hope this helps, and have a nice day!

4 0
3 years ago
I really need help for this! Please!
Serhud [2]

Answer: -16

Step-by-step explanation:

-3 is less than -2 so use the first one

Plug into equation

5(-3)-1

-15-1= -16

8 0
2 years ago
I NEED HELP! PLEASE HELP ME I WILL GIVE YOU 5 STARS AND A HEART! PLEASEEEEE.THANK YOU,
DerKrebs [107]
I believe #1 is a prism and #2 is a cylinder. <span />
6 0
3 years ago
Read 2 more answers
Is D the right answer for this? Thank you! - Alyssa
vesna_86 [32]
We start by ordering the values.

5, 7, 8, 10, 13, 14, 17, 17, 21

Now we find the median(middle number).

Median(b): 13
(I added (b) for "base" since we need to take more medians)
The median now divides this data into two halves.

Now we take the medians of the two remaining halves.

Median(Half1): 7.5
Median(Half2): 17

Mark off the minimum and maximum.

Min: 5
Max: 21

Now graph!

Your median(Half1) is incorrect, since your median for the first half is 9. Since our median for the first half is 7.5, the answer would be Answer Choice C.
8 0
2 years ago
The simplest form of the expression 4m-17/m^2-16 + 3m-11/m^2-16 has ____in the numerator and___ in the denominator.
lara31 [8.8K]
For this case we have the following expression:
 \frac{4m-17}{m^2-16} + \frac{3m-11}{m^2-16}
 Since the denominator is equal, then we can add the numerator.
 We have then:
 \frac{(4m-17) + (3m-11)}{m^2-16}
 Adding similar terms we have:
 \frac{(4m+3m) + (-17-11)}{m^2-16}
 Rewriting we have:
 \frac{7m - 28}{m^2-16}
 Doing common factor in the numerator we have:
 \frac{7(m - 4)}{m^2-16}
 Factoring the denominator we have:
 \frac{7(m - 4)}{(m-4)(m+4)}
 Canceling similar terms we have:
 \frac{7}{m+4}
 Answer:
 
The simplest form of the expression has 7 in the numerator and m+4 in the denominator.
3 0
3 years ago
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