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3 years ago

(x/2)+3=(3/4) I don't understand can someone help?

Mathematics

2 answers:

arlik [135]3 years ago

4 0

Answer:

What are you trying to find?

Step-by-step explanation:

svetlana [45]3 years ago

3 0

Answer:

(x = 17/12) = 1.417

Step-by-step explanation:

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What is <br> 5(2x+8)-5x=5(5x+6?

yanalaym [24]

5(2x+8)-5x=5(5x+6)

Distribute

10x+40-5x=25x+30

combine like terms

5x+40=25x+30

-5x -5x

subtract 5x from both sides

40=20x+30

-30 -30

subtract 30 from both sides

10=20x

÷20 ÷20

divide both sides by 20

1/2=x is your final answer

4 0

3 years ago

A sprinter who weighs 706 N runs the first 5.5 m of a race in 1.6 s, starting from rest and accelerating uniformly. What are the

zhenek [66]

Answer:

(a) Speed = 6.875 m/s

(b) Kinetic Energy = 1.70 kJ

Step-by-step explanation:

Given:

d = 5.5 m

t = 1.6 s

W = 706 N

Part (a)

Using the equation of motion with the assumption of zero initial speed:

$d = \frac{1}{2} ({v-0})t$

$5.5= \frac{1}{2} (1.6v)$

The speed of the sprinter then become:

$v = 6.875 m/s$

Part (b)

Convert the weight of the sprinter to mass:

$m = \frac{w}{g}$

$m = \frac{706}{9.8}$

$m = 72 kg$

KE (Kinetic Energy) can then be calculated as:

$KE = \frac{1}{2} mv^{2}$

$KE = \frac{1}{2} (72)(6.875)^{2}$

$KE = 1701.56 J = 1.70 kJ$

Part (c)

The change of the kinetic energy is equivalent to the work done by the sprinter. The average power P is the rate of the work done and can be calculated as

$P = \frac{KE}{t} \\\$

$P = \frac{1701.56}{1.6}$

$P = 1063.48 W = 1.06 kW$

5 0

3 years ago

Help please..........

Paha777 [63]

1. Arc KL = 23
2. Arc LON = 203
3. Arc OM = 113
4. Arc KNL = 180
5. 157

hope this helps !

5 0

3 years ago

1 3/4 + 1/6 + ? = 7 1/2

alexira [117]

Answer:

87/9

Step-by-step explanation:

4 0

1 year ago

7. What is the value of x for the triangle drawn below?

slega [8]

Answer:

where is the triangle?

8 0

3 years ago