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3 years ago

If x/2 + 3y=6, then solve for x in terms of y and y in terms of x

1 answer:

5 0

X/2 +3y = 6 . . . . . . . . starting point
x/2 = 6 -3y . . . . . . . . subtract terms that don't have x
x = 2(6 -3y) . . . . . . . . multiply by the inverse of the x-coefficient
x = 12 -6y . . . . . . . . . expand if you like

3y = 6 -x/2 . . . . . . . . subtract terms that don't have y
y = (6 -x/2)/3 . . . . . . . multiply by the inverse of the y-coefficient
y = 2 -x/6 . . . . . . . . . expand if you like

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Calculate the area of trapezium CDEF.

gavmur [86]

Step-by-step explanation:

1/2×(9+5)×6

1/2×14×6

7×6

42cm2

4 0

3 years ago

Of the last 16 trains to arrive at Yardley Station, 14 were on time. What is the experimental probability that the next train to

Mama L [17]

Answer:

The experimental probability that the next train to arrive will be on time is P(T) = $\frac{14}{16}$ = 0.875

Step-by-step explanation:

Experimental Probablity is based on the experiments which we have performed in the past. In this case, of the total number of trains (16), the total number of trains which arrived on time is (14). So the probablity tat the next train to arrive will be on time would be calculated as:

= $\frac{14}{16}$

= 0.875

4 0

3 years ago

Order the subjects from least to greatest 4/25 or 13% or 0.28 or 7% or 21/100 0.15

motikmotik

Answer:

The answer is: 7% ; 13% ; 0.15 ; 4/25 ; 21/100 ; 0.28

8 0

3 years ago

a restaurant owner bought 4 boxes of disposable cups for $145 , with each box containing 1,656 cups. if he wanted to divvy up th

snow_lady [41]

1104 cups per 1 restaurant

There are FOUR boxes EACH containing 1656 cups, MEANING that you will do 1656 x 4, getting 6624.

You divide this by 6, and TADA!

Hope this helps!

5 0

3 years ago

(45/360)2πr=9π/4

Lyrx [107]

Answer:

r=9

Step-by-step explanation:

45/360=1/8

1/8*2=2/8

2/8=1/4

1/4*pi*r=(9pi)/4

Divide both sides by 1/4 (the fours cancel each other out)

Pi*r=9*pi

Pi cancels each other out

R=9

Hope this helps

7 0

3 years ago