Answer:
B) 16
Step-by-step explanation:
12/3 = x/4
48 = 3x Divide both sides by 3
16 = x
Answer:
The price of hot dog is $2.5 and that of a pretzel is $1.25.
Step-by-step explanation:
Let the cost of hotdogs be h and that of pretzels be p.
So,
4h+3p = 13.75 ...(1)
and
2h+5p = 11.25 ...(2)
Multiply equation (2) by 2.
4h+10p = 22.5 ...(3)
Subtract equation (1) from (3).
4h+10p-(4h+3p) = 22.5-13.75
4h+10p-4h-3p = 8.75
7p = 8.75
y = 1.25
Put the value of y in equation (1).
4h+3(1.25) = 13.75
4h+3.75 = 13.75
4h = 13.75-3.75
4h = 10
h = 2.5
So, the price of hot dog is $2.5 and that of a pretzel is $1.25.
Answer:
Step-by-step explanation:
<u>The given two points have same x- coordinates, hence the line vertical and is parallel to the y-axis:</u>
Its slope is undefined.
Answer:
X=22.5
Step-by-step explanation:
Y=kX
20=15k
k=4/3
For X when Y=30
30=4/3×X
Cross multiply
4X=90
X=22.5
