Answer:
25
Step-by-step explanation:
4 1/6 in simplest form is 25/6
so 25/6 x 6 is 25
Answer:
he charges a £20 call out charge and then £30 an hour there after.
20+(30xh)
Answer:
u said 30 points
Step-by-step explanation:
Answer:
The expression that shows how long the two machines will operate simultaneously is:

Step-by-step explanation:
We know that:
x: hours to manufacture a deck of cards for machine A
y: hours to manufacture a deck of cards for machine B
z: hours that machine A operates alone
The number of decks manufactured only by machine A is:

So, the remaining decks are given by:

Then, the combined rate of machines A and B would be:

The work-rate formula is:

Hence, the time that the two machines work simultaneously is:


The formula is pi r2 h
3.14*4*5
3.14*20
62.8