Step-by-step explanation:
4 + x + 3x = 4 ( 5x ) - 3 ( x ) - 10
4 + x + 3x = 4 + 5x - 3 + x - 10
x + 3x + 5x + x = 4 + 4 - 3 - 10
10x = 21
10x % 10 = 21 % 10
x = 2,1
10 Inches
A = p q / 2
p = diagonal 1
q = diagonal 2
2A / q = p
Solve for p
180/18 = 10
Answer:
your answer is A hope this helps
Step-by-step explanation:
Answer:
8,70,80,60
Step-by-step explanation:
i think
Answer:
pretzels = 10
drinks = 6
Step-by-step explanation:
Let d = number of drinks
p = number of pretzels
4d+ 4.75p = 71.50
d+p = 16
Solving this for d
d = 16-p
Substituting this into the first equation
4(16-p)+ 4.75p = 71.50
Distribute
64 - 4p +4.75p = 71.50
Combine like terms
64 +.75p = 71.50
Subtract 64 from each side
64 -64 +.75p = 71.50-64
.75p = 7.5
Divide each side by .75
.75p/.75 = 7.5/.75
p =10
Now we can find the number of drinks
d = 16-p
16-10
6
