Answer: 170
Step-by-step explanation:
First, we need to do multiplication.
-50 x -2 = 100 because 2 negatives make a positive.
70 + 100 = 170.
Answer:
C
Step-by-step explanation:
Answer:
for brand a= $8 per/kg and brand b=$5 per/kg
Step-by-step explanation:
Let A be the cost per kg. of brand a
Let B be the cost per kg. of brand b
forming the equation: (wt. * cost + wt. * cost = wt. * cost)
4A + 6B = 10(6.20)
------(1)
2A + 8B = 10(5.60)
------(2)
lets find out the values of A and B by solving above equations.
(1)=>
put this value in eq(2)
(2)=> ![2(\frac{62-6B}{4} )+8B=10(5.60)](https://tex.z-dn.net/?f=2%28%5Cfrac%7B62-6B%7D%7B4%7D%20%29%2B8B%3D10%285.60%29)
![\frac{62-6B+16B}{2} =56](https://tex.z-dn.net/?f=%5Cfrac%7B62-6B%2B16B%7D%7B2%7D%20%3D56)
![10B+62=112](https://tex.z-dn.net/?f=10B%2B62%3D112)
= 5 ---> ($5 per/kg for B)
now for A,
=8 ---> ($8 per/kg for A)
Answer:
wouldnt it be 41 ft beacuse from the roof line to the ground its 4ft so the nswer
would meStep-by-step explanation: