2 years ago

Look at the picture please

1 answer:

lbvjy [14]2 years ago

5 0

The answer is the First one and the Second to Last one.

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enyata [817]

Nikkis charges are 20,40,50,80. Dave’s charges are 25 and 37.5.

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2 years ago

Butoxors [25]

Answer:

Step-by-step explanation:

you first divide 81 by 18 and get 4.5, that is the number of children per adult.

next you'll divide 27 by 4.5 and 6.

that's the answer.

3 0

3 years ago

nydimaria [60]

Answer:

y=8

Step-by-step explanation:

$\frac{1}{3} x + \frac{1}{4}y= 1\\\\\frac{4x+3y}{12} =1\\4x+ 3y =12\\y = \frac{12-4x}{3}$

let's note this as our equation no. (i)

and let 2x-3y = -30 be the equation no. (ii)

Put value of y from (i) into (ii)

$2x -3y = -30\\2x-3(\frac{12-4x}{3} )=-30\\2x -12+4x = -30\\6x = -30+12\\6x= -18\\x = -3$

Now put x = -3 back in equation (i)

$y = \frac{12-4x}{3}\\y = \frac{12 - 4(-3)}{3}\\y = \frac{12 + 12}{3} \\y = 8$

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2 years ago

Elan Coil [88]

That solid figure that you are is a square.

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3 years ago

Lynna [10]

20 People Will Win The Prize

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2 years ago

Look at the picture please ​