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2 years ago

15

Diego has a skateboard, scooter, bike, and go-cart. He wants to know which vehicle is the fastest. A friend records how far Dieg

o travels on each vehicle in 5 seconds. For each vehicle, Diego travels as fast as he can along a straight, level path.

1 answer:

Gekata [30.6K]2 years ago

5 0

Answer:

Are there any numbers?

Step-by-step explanation:

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-x+4=2x-8<br><br> We think it’s x=11.5

kvv77 [185]

Answer:

x=4

Step-by-step explanation:

-x+4=2x-8

4=2x-(-x)-8

4=2x+x-8

4=3x-8

3x=4+8

3x=12

x=12/3

x=4

6 0

3 years ago

Find the area of this shape

Lilit [14]

$9 \times 13 = 117 {cm}^{2}$

4 0

2 years ago

Can someone help me please ???????

Inessa [10]

Answer:

d=1

Step-by-step explanation:

Factor d^2 - 2d - 8 into (d-4)(d+2)

Move -2/d+2 onto the other side, changing it into 2/d+2.

$\frac{-3d}{(d-4)(d+2)} +\frac{3}{d-4}+\frac{2}{d+2} = 0$

Let the empty side equal zero.

Add 3/d-4 and 2/d+2

$\frac{5d-2}{(d+2)(d-4)}$

Then add that to -3d.

$\frac{2d-2}{(d+2)(d+4)}$

Multiply 0 by d+2 and d-4 to get 2d-2 by itself.

2d=2

d=1

I can't edit the equation, but it's d-4 althroughout the question. Sorry for being so slow.

6 0

2 years ago

Nine less than three times a number is greater than forty

pentagon [3]

Start with an equation.
Nine less... so -9
3 times a number = 3x
Greater than 40 is >40

So put together is 3x-9>40
When solving I imaging the greater than sign as an equal sign. Less confusing.
3x-9=40
3x=49
x>49/3

7 0

2 years ago

If you deposit $5000 at the end of each year for 30 years using an annual interest rate of 9% compounded annually, how much mone

hichkok12 [17]

$163,500

5000(0.09) x 30 = 13,500
5000 x 30 = 150,000
Altogether 163,500

6 0

2 years ago