7-foot
EXPLANAT
Given:
14 foot tree
8foot shadow
4foot shadow
Let h be the height of a tee that casts a 4 foot long shadow.
Using proportion;
14 foot = 8 ft shadow
h = 4 ft shadow
Cross - multiply
8h = 56
Divide both-side by 8
h = 7 foot.
Hence, the tree is 7-foot.
The total cost, if one drink costs $3 is $27.75
- Let the cost of a pizza be x
- Let the cost of a drink be y
If kiyo bought a pizza for 12.75 and four medium drinks to Pauli’s pizza, this expressed as x + 4y
Since a pizza costs $12.75, hence x = $12.75
The function becomes 12.75 + 5y
f(y) = 12.75 + 5y
To get the total cost if one drink costs $3, hence;
f(3) = 12.75 + 5(3)
f(3) = 12.75 + 15
f(3) = 27.75
Hene the total cost, if one drink costs $3 is $27.75
Learn more on function here: brainly.com/question/9418047
Answer:
y = - x - 6
Step-by-step explanation:
y = mx + b
m = - 1
y = - x + b
(- 4, - 2)
- 2 = - (-4) + b
-2 = 4 + b
b = - 6
y = - x - 6
The first option is
![18(3x-1) = 18\cdot 3x - 18\cdot 1 = 54x-18](https://tex.z-dn.net/?f=%2018%283x-1%29%20%3D%2018%5Ccdot%203x%20-%2018%5Ccdot%201%20%3D%2054x-18%20)
The second option is
![6\cdot 9x + 6\cdot 1 = 54x + 6](https://tex.z-dn.net/?f=%206%5Ccdot%209x%20%2B%206%5Ccdot%201%20%3D%2054x%20%2B%206%20)
So, neither of them is equivalent to ![54x+18](https://tex.z-dn.net/?f=%2054x%2B18%20)