Answer:
y=8.1
Step-by-step explanation:
Answer:
9300.75
Step-by-step explanation:
9000 + 300 + 100 * 6 / 800
According to Order Of Operations, we multiply and divide first.
9000 + 300 + 600 / 800
Divide.
9000 + 300 + 0.75
Add.
9300 + 0.75
Add.
9300.75.
Answer:
Step-by-step explanation:
4x-6y=21
divide by 21

Answer:
30
Step-by-step explanation:
16 days is 16/80 = 1/5 the time for 6 builders, so the number of builders required is 1/(1/5) = 5 times that:
5 × 6 builders = 30 builders
Answer:
49x +196x.... or 245x
Step-by-step explanation: