Answer:
d. 2
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
45a−25+7a=79
45a+−25+7a=79
(45a+7a)+(−25)=79(Combine Like Terms)
52a+−25=79
52a−25=79
Step 2: Add 25 to both sides.
52a−25+25=79+25
52a=104
Step 3: Divide both sides by 52.
52a
52
=
104
52
a=2
A rational number is a number that can be written in form a/b where a and b are integers and b is not eual to 0
simplify eacy
we get
is irrational
since we can't write
as a rational number, the entire phrase is irrational
anwer is irrational
A=1/10, b=1/12, c=1/15 (these are the rates for each worker...)
1.)
2(1/10)+4(1/12)+t/15=1
1/5+1/3+t/15=1
(3+5+t)/15=1
3+5+t=15
8+t=15
t=7
So it would take c 7 hours to finish the job.
2.)
1/40-1/60
(3-2)/120
1/120
The drain rate is 1/60. So you will need to find t when the tank is empty, while starting at 2/3 capacity...
2/3-t/60=0
(40-t)/60=0
40-t=0
t=40
It would take 40 minutes to empty the tank when it is 2/3 full.
Answer:
a = 2.5
Explanation:
2a + 14 = 9
a = 2.5
Answer:
536
Step-by-step explanation:
To find how many red gumballs where put into the machine: 253-98 = 155
To find how many blue gumballs where put into the machine: 155- 27 = 128
To then find the total amont of gumballs placed into the machine:
253+155+128 = 536 gumballs where placed into the machine in total
