1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Iteru [2.4K]
3 years ago
10

What is the value of a in the equation 3 a + b = 54, when b=9

Mathematics
1 answer:
slavikrds [6]3 years ago
6 0

To solve this plug in 9 for b and solve for a like so...

3a + 9 = 54

9 must be combined with 54. To do this you must subtract 9 from both sides. This will cancel out 9 from the left and bring it over to the right

3a + (9 - 9) = 54 - 9

3a + 0 = 45

3a = 45

Now we must isolate the a. To do this you have to divide 3 to both sides. This will make 3 on the left side 1 and bring 3 over to the other side

3a/3 = 45/3

1a = 15

a = 15

Hope this helped!

~Just a girl in love with Shawn Mendes

You might be interested in
DOES ANYONE KNOW THIS! PLSS HELP
tia_tia [17]

Answer:

Dont know how to exactly explain but

Step-by-step explanation:

Both triangles angle y is 85 i forgot the proof name

4 0
3 years ago
Find the amount necessary to fund the given with drawls. Quarterly withdrawals of $850 for 9 years with an interest rate of 4.4%
Lostsunrise [7]

Answer:

The principal amount necessary to fund is $573.31

Step-by-step explanation:

Given as :

The quarterly withdrawal amount = A = $850

The time period for withdrawals = t = 9 years

The rate of interest = r = 4.4% compounded quarterly

Let The principal amount necessary to fund = $p

Now, <u>From Compound Interest</u>

Amount = Principal × (1+\frac{rate}{100\times 4})^{4\times time}

Or, $850 = p × (1+\frac{r}{100\times 4})^{4\times t}

Or, $850 = p × (1+\frac{4.4}{100\times 4})^{4\times 9}

Or, $850 = p × (1.011)^{36}

Or, $850 = p × 1.4826

∴ p = \frac{850}{1.4826}

i.e p = $573.31

So,The principal amount necessary to fund = p = $573.31  

Hence, The principal amount necessary to fund is $573.31   Answer

3 0
4 years ago
PLEASE HELP NOBODY EVER ANSWERS MY QUESTIONS Rip van Winkle has fallen asleep for a very long time.
UNO [17]

Answer:

10 millimeters

Step-by-step explanation:

Don't listen to the other answerer who was trolling, I will actually help you. To find how long his beard was when he fell asleep, we need to find the y-intercept. The y-intercept marks how long his beard was right when he fell asleep. From looking at the graph, we can see that the y-intercept is 10. This means his beard was 10 millimeters long when he fell asleep. I hope this helps!

3 0
3 years ago
From a population of size 400, a random sample of 40 items is selected. The median of the sample Group of answer choices must be
avanturin [10]

Answer:

400+40+200+400 +200 +10+400×2+10

4 0
4 years ago
Please help me with questions 26 and 27
grandymaker [24]
26) Answer is choice A: y = -3
This is the horizontal line that cuts the figure into two congruent pieces.
--------------------------------------------------------------

27) Answer is choice A: AB = 24 and DE = 12
CA/DF = 12/6 = 2
CB/FE = 20/10 = 2
The ratio of the larger to smaller corresponding sides is 2:1 or just 2

So AB needs to be twice as long as DE
That only happens with choice A

6 0
4 years ago
Other questions:
  • What is the square root of 80 simplified?
    8·1 answer
  • I need the surface area plz​
    13·1 answer
  • What is the equation of the blue line?
    9·2 answers
  • Kiera takes piano lessons and currently knows 6 pieces. She learns two new pieces each week.
    5·1 answer
  • Help plz plz plz! :)
    8·1 answer
  • Can someone help me? Please
    8·1 answer
  • Can somebody help me with this question !​
    5·1 answer
  • The diagram below models the length from the center of a wind turbine to the tip of one
    6·1 answer
  • The edge town eagle football team is having a tough season. During one game, they lost a total of 62 yards in 8 plays. What is t
    11·1 answer
  • Which of the following is the correct graph of the compound inequality 4p +1 &lt;-11 or 6p + 3 &gt; 39?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!