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const2013 [10]
3 years ago
15

Solve for x. 5(x - 10) = 30 – 15xA. x = 1 B. x = 4 C. x = 5 D. x = 8​

Mathematics
2 answers:
Serjik [45]3 years ago
5 0

x=4

Step-by-step explanation:

Distrubutive property: 5x-50=30-15x

get x on one side: 5x-50+15x=30

combine like terms: 20x-50=30

subtract on both sides: 20x=30+50

20x=80

simplify: 20/20=80/20

x=4

Alenkasestr [34]3 years ago
4 0
5x - 50 = 30 - 15x
30+50= 80
-15x - 5x = -20x

-20x = 80

20/80

4

Anwer B.
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Proper angle for a ladder is about 75° from the ground. Suppose you have a 10 foot ladder. How far from the house should you pla
Alja [10]

Answer:

The base of the ladder is 2.58 m.

Step-by-step explanation:

Given that,

The angle of elevation for a ladder from the ground is 75°.

The length of a ladder, H = 10 foot

We need to find the distance from the house should you place the base of the latter. Let the base of the ladder is b. Using trigonometry,

\cos\theta=\dfrac{B}{H}\\\\B=H\times \cos\theta\\\\B=10\times \cos(75)\\\\B=2.58\ m

So, the base of the ladder is 2.58 m.

8 0
3 years ago
Please help me answer the question in the picture
love history [14]
Parallel = same slope
Y = -3x + 7, the slope is -3
Slope intercept form: y = mx + b
Y = -3x + b
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5 0
3 years ago
Determine whether the function is linear (0,1) (-2,-1) (-4,1)
Brut [27]

Answer:

No, this is not a linear function

Step-by-step explanation:

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6 0
3 years ago
George is 6 feet tall and his shadow measured 8 feet long at noon. At the same time, a nearby flagpole cast a 40-foot shadow. Wh
mash [69]

Answer:

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6 0
3 years ago
Please help me thanks
marissa [1.9K]

Answer:

The constant rate of change is 1.5

The point that intersects the y axis is (0,0)

Step-by-step explanation:

Constant rate of change: y2-y1/x2-x1

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3-1.5=1.5

2-1=1

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Constant rate of change is 1.5

Hope this helps!

8 0
3 years ago
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