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kow [346]
3 years ago
11

Solve the equation for a. K=4a+9ab

Mathematics
1 answer:
ale4655 [162]3 years ago
3 0

Answer:

a= k/4+9b

Step-by-step explanation:

hope this helps, if not let me know!

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Bob parked his car at the local garage. If his car stayed for one hour, he would have been charged $6.00. If he stayed for 4 hou
Nitella [24]

Answer:

Initial charge is $2.5

Hourly charge is $3.5/hr

Equation is y=3.5x+2.5

Step-by-step explanation:

Getting slope

Get fixed charge

Get equation

The slope can be found as follows. For 1 hour, charges is $6 so making time in x axis while money charged in y axis, the first coordinate is (1, 6) while for 4 hours with charge of $16.5 the coordinate will be (4, 16.5)

The slope will be given by dividing change in y axis to change in x axis. This will be (16.5-6)/(4-1)=3.5

To get the fixed charge

Using the equation y=mx+c where m is slope while c is fixed charge, x is time and y is total cost then for 1 hour

6=3.5(1)+c

C=6-3.5=2.5

Therefore, generally the equation will be y=3.5x+2.5

Initial charge is $2.5

Hourly charge is $3.5/hr

Equation is y=3.5x+2.5

6 0
3 years ago
What is the simple interest on $4,500 for 2 and a half years at 4% per year
ELEN [110]

Answer: $350

Step-by-step explanation:

Interest =PRT/100

Interest =$4500 times 2 times 4 /100

Interest = $36000 / 100

Interest = $360

4 0
3 years ago
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WHOEVER IS CORRECT GETS BRAINLIST
dimulka [17.4K]

Answer:

1.45%

Step-by-step explanation:

If each square equals a whole, count the mini squares in the not yet full square. There are 45 in the other square. So, it is 1.45%.

3 0
3 years ago
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Evaluate 3z when z=9
sweet-ann [11.9K]
Z=9 so 3*9 is 27. 27 is your answer. You are literally just switching the variable z with 9.
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3 years ago
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Need all of these answered please
Crank

Answer:

no lol

Step-by-step explanation:

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3 years ago
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