Solve for x.
X+2 1/4=4 3/4
A.)1 3/4
B.)2 1/4
C.) 2 1/2
D.) 2 3/4

C.) 2 1/2

Step-by-step explanation:

X + 2 1/4 = 4 3/4

Change the fractions to improper fractions .

We have

X + 9/4 = 19/4

Subtract 9/4 from both sides

X + 9/4 - 9/4 = 19/4 - 9/4

X = 19/4 - 9/4

Look for the LCM of the denominators.

The LCM is 4

Divide the LCM by the denominators and multiply the results by the numerators, the lcm becomes the denominator of the results.

That’s

X = 19 - 9 /4

= 10/4

Divide both numerator and denominator by 2

= 5/2

= 2 1/2

C.) 2 1/2

Step-by-step explanation:

X+2 1/4=4 3/4

Subtract 2 1/4 from each side

X+2 1/4  - 2 1/4=4 3/4 - 2 1/4

x = 2 2/4

This simplifies to

x = 2 1/2

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have