Answer:
the first equation could be something along the lines of 
then the second is 
Step-by-step explanation:
this is how shifting works
= (y+6) +y =10
= 2y + 6 = 10
= 2y = 4
Y= 2
Answer: 48
Step-by-step explanation:
The share of sand in the mixture is 3/7
To make 112 kgs. of concrete, he will need
3/7 x 112 = 48 units of sand
Answer:
22 inch is the diameter because d =2r
20 chocolate chip, 15 peanut butter. I don't know how to show that on a diagram, but this can at least get you started
