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11111nata11111 [884]
3 years ago
15

Solve for x.

Mathematics
1 answer:
Norma-Jean [14]3 years ago
6 0
1. x= 8

2. x=2

3. x=-9

4. x=4

5. x= -5

6. x=16

7 x=0

8: x=-3

Hope this helps!
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The perimeter of Dawna's new flat screen television is 112 inches. The ratio of its length to width is 4:3. Write and solve an a
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Answer:

The dimensions are length=32 inches and width=24 inches

Step-by-step explanation:

Recall that perimeter of a rectangle is

P  = 2(w + l)

The ratio of its length to width is 4:3.

This implies that,

\frac{l}{w}  =  \frac{4}{3}  \\ l =  \frac{4}{3} w

We substitute P=112 inches, and l in terms of w to get;

112 = 2(w +  \frac{4}{3}w)

56 = w +   \frac{4}{3}w

168 = 3w + 4w

7w = 168

w =  \frac{168}{7}  = 24

The length is

l =  \frac{4}{3}  \times 24 = 32

5 0
3 years ago
David drove 580 km on 7 hour journey. on the city roads he drove 60km/h and on the he drove 100km/h. How long did he drive at ea
serious [3.7K]

Answer:

3 hours on the city roads and 4 hours on the other roads

Step-by-step explanation:

580 (total miles driven) - 400 (4 hours of driving 100km/h) = 180 (miles left)

180 (miles left to drive) / 60 (km/h) = 3 (hours driven at the speed of 60km/h)

I hope this helps :)

5 0
3 years ago
Find the quotient of 6a3 ÷ 3a.
Volgvan
6a^3 : 3a = 2a^3-1 = 2a^2

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Hope it helped
8 0
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Answer:

Step-by-step explanation:

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2 years ago
Which equation has exactly one solution?
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