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3 years ago

12

he ratio of your monthly allowance to your friend’s monthly allowance is 5 : 3. Both of your monthly allowances total $40. How m

uch is each allowance?

2 answers:

Elena-2011 [213]3 years ago

6 0

Answer:

your allowance is $25 and your friends is $15

Step-by-step explanation:

40/8*3=15

40/8*5=25

larisa [96]3 years ago

5 0

Yours is 25 and the friends is 15

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gregori [183]

Answer: C. Stratification

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4 years ago

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riadik2000 [5.3K]

Answer:

a) System of equations will be: $x+y=500\: and\:5x+2y=1789$

b) Number of adult tickets sold = 263

Number of students tickets sold = 237

Step-by-step explanation:

Let:

Number of adult tickets sold = x

Number of students tickets sold = y

a)

As Marc sold total 500 tickets, the expression will be: $x+y=500$

Student tickets cost $2 and adult tickets cost $5. Marc's sales totalled $1,789.

The expression will be: $5x+2y=1789$

So, system of equations will be: $x+y=500\: and\:5x+2y=1789$

b)

Solve the system to find value of x and y

Let:

$x+y=500--eq(1)\\5x+2y=1789--eq(2)$

Multiply equation 1 by 2 and subtract

$2x+2y=1000\\5x+2y=1789\\-\:\:\:-\:\:\:\:\:\:\:\:\:-\\------\\-3x=-789\\x=\frac{-789}{-3}\\x=263$

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Now finding value of y by putting value of x in eq(1)

$x+y=500\\263+y=500\\y=500-263\\y=237$

We get value of y = 237

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