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dusya [7]
4 years ago
5

A 21 foot beam is to be cut into three pieces so that the second and the third piece are each 3 times the length of the first pi

ece if x represents the length of the shorter piece, find the lengths of all three pieces
Mathematics
1 answer:
mylen [45]4 years ago
6 0

x+3x+3x=21

7x=21

x=3

3, 9, 9=21

the answers are 3, 9, and 9

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-4y+4=10x standard form ik its 10x+4y=4 but you need to simplify more please help i need to get it in an hr
LuckyWell [14K]

Answer:

x= (2/5)-(2y/5)      (Im not sure if this is what you need but this is the answer simplified)

Step-by-step explanation:

Move all terms that don't contain x to the right side and solve.

7 0
2 years ago
Find the equation of the line shown.
Luda [366]

Answer:

y = -x + 9

Step-by-step explanation:

✔️Find the slope using (9, 0) and (7, 2):

slope (m) = \frac{y_2 - y_1}{x_2 - x_1} = \frac{2 - 0}{7 - 9} = \frac{2}{-2} = -1

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✔️Find the y-intercept (b):

The line intercepts the y-axis when y = 9. Therefore, y-intercept (b) = 9

✔️Substitute m = -1 and b = 9 into y = mx + b

Thus,

y = -1(x) + 9

y = -x + 9

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3 years ago
You roll 2 dice. how likely is it that the 2 numbers will add up to 12 or less?
VashaNatasha [74]
It is a very high probability. If you role two dice no matter what you will get 12 or less.
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Answer:

2

Step-by-step explanation:

The slope, or rate of change in any function is the number multiplied by the independent variable (in this case x).

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