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padilas [110]
3 years ago
7

A 180 ft long board is cut into 3 pieces. The second piece of board is twice as long as the first. The third piece of board is s

ix times as long as the first.
What is the length of the first piece of the board?
A. 20 ft
B. 40 ft
C. 60 ft
D. 120 ft
Mathematics
1 answer:
Ad libitum [116K]3 years ago
8 0

Answer:

Step-by-step explanation:

let  the first piece=x ft

second piece=2 x ft.

third piece=6 x ft.

x+2x+6x=180

9 x=180

x=20

first piece=20 ft.

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The set of equation that is known to have 5 and 0 as solutions is A and B.

<h3>How to solve for the system of equations.</h3>

From the graph that we have here in this question, we are supposed to identify the equations that have this point.

We can do this by tracing the lines in order to locate 5 and 0 on the grid.

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6 0
2 years ago
What is the product (9t-4)(-9-4)
Scrat [10]

Answer:

-81t^2 +16

Step-by-step explanation:

(9t-4)(-9t-4)

FOIL

first: -9t*9t = -81t^2

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6 0
3 years ago
Solve for y 6x-8y&gt;=-24
Amiraneli [1.4K]

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3 0
3 years ago
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docker41 [41]
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4 0
3 years ago
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Crank

Answer:

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Step-by-step explanation:

-6=2n-n

Combine like terms

-6 = n

4 0
3 years ago
Read 2 more answers
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