Who can help me on my math I’m failing can y’all please help me on some questions. It’s solving systems of equations
This is how much does the plain pizza cost
How much does a pepperoni pizza costs

1 plain pizza costs $10.50 and 1 pepperoni pizza costs $12.50

Step-by-step explanation:

Jack: 3x+2y= 58.5

Jill:    2x+4y=67

a) Multiply both equations so that one of the coefficients (number before the letter) are equal:

6x+4y=117

6x+12y=201

b) We can now easily subtract them to get:

(subtracted 6x) 4y=117  12y=201 (12y-4y and 201-117 next) 8y=84

c) Now we can divide 84 by 8 to get y=10.5, so now we can substitute it into any of the equations:

2x+(4*10.5)=67 --> 2x+42=67 -(subtract 42 from both sides)-> 2x=25  -(divide both side by 2)-> x=12.5.

d) To check if it works: 2(12.5)+4(10.5)=67 25+42=67 so it's correct.

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!