Answer: Great
Step-by-step explanation:
Answer:
X= 1/2 Y= 5
Step-by-step explanation:
8x+7y=39-------------(1)--------×2
4x-14y= -68-----------(2)-------×1
16X + 14Y = 78--------(3)
4X- 14Y = -68----------(4)
Addy equation (4) and (3)
20X = 10
dividing bothsides by 20
20X/20= 10/20
X = 1/2
substitute the value of X into equation (1)
8X+7Y = 39
8(1/2)+7Y= 39
4+7Y = 39
7Y = 39-4
7Y = 35
dividing bothsides 7
7Y= 35/7
Y = 5
The constant of proportionality is 5.5
Step-by-step explanation:
y = kx
k = constant of proportionality
y = <u>5.5</u>x
Answer:
4 apples adding 4 and adding 4 again = the amount you have
Step-by-step explanation:
draw 3 groups of 4 apples
