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
alisha [4.7K]
3 years ago
8

Please solve the equation: 11a-(4a-7)=77

Mathematics
2 answers:
Advocard [28]3 years ago
8 0

Answer:

a=10

Step-by-step explanation:

11a-(4a-7)=77

11a-4a+7=77

7a+7=77

7a=70

a=10

Alex73 [517]3 years ago
4 0

Answer:

a=10

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

11a−(4a−7)=77

11a+−1(4a−7)=77(Distribute the Negative Sign)

11a+−1(4a)+(−1)(−7)=77

11a+−4a+7=77

(11a+−4a)+(7)=77(Combine Like Terms)

7a+7=77

Step 2: Subtract 7 from both sides.

7a+7−7=77−7

7a=70

Step 3: Divide both sides by 7.

\frac{7a} {7} = \frac{70} {7}

Thus a = 10

You might be interested in
A box has 16 candies.12 red and 4 yellow.If you were picking candies from the box without looking.How many candies would you hav
jeka57 [31]

We want to get the probability of randomly picking two candles of the same color. We will see that this probability is 0.6

First, the thing that we know is that there are 16 candles, 12 red and 4 yellow.

The probability of getting a red candle in the first pick is given by the quotient between the number of red candles and the total number of candles:

  • p = 12/16 = 3/4

The probability of getting another red candle is computed in the same way, but now there are 11 red candles and 15 candles in total:

  • q = 11/15

The joint probability is given by the product of the two individual probabilities:

P = p*q = (3/4)*(11/15) = 33/60 = 0.55

Now we must do the same thing but with the yellow candles, the probability of getting a yellow candle in the first draw is:

  • p = 4/16 = 1/4

For the second candle we have:

  • q = 3/15 = 1/5

The joint probability is:

P' = p*q = (1/4)*(1/5) = 1/20 = 0.05

Then the probability of getting two candles of the same color is the sum of the two above:

P'' = 0.55 + 0.05 = 0.6

If you want to learn more about probabilities, you can read:

brainly.com/question/251701

5 0
3 years ago
Read 2 more answers
a women has a ladder that is 13 ft long. if she sets the base of the ladder on level ground 5ft from the side of a house, how ma
Mazyrski [523]
It is convenient to remember that 5-12-13 is a Pythagorean triple.

Her ladder is 12 ft above the ground where it rests on the house.

_____
Using the Pythagorean theorem, you are given the hypotenuse as 13 ft and one leg as 5 ft. Then the other leg is
.. √(13^2 -5^2) = √(169 -25) = √144 = 12
4 0
3 years ago
What is the simplified form of 4x+2/x+5 plus 3x-1/x+5
Pepsi [2]

\bf \underset{\textit{same denominator}}{\cfrac{4x+2}{x+5}+\cfrac{3x-1}{x+5}}\implies \cfrac{(4x+2)+(3x-1)}{x+5}\implies \cfrac{7x+1}{x+5}

5 0
3 years ago
Read 2 more answers
Help ASAP!!
Sergio [31]
It’s just adding 19 each time
7 0
2 years ago
Read 2 more answers
Write the equation of the line parallel to the given line and passing through the given point. y= 1/2 x+2 through (0,4)
marshall27 [118]

Parallel lines have the same slope, so the slope of the new line is 1/2.

The line passes through (0,4), and this gives the y-intercept, which would equal 4.

The equation now would be: y = 1/2x + 4

3 0
3 years ago
Other questions:
  • What is 2 3/5 times 1 4/7
    9·1 answer
  • Jennifer drove three times as far as David Jennifer drove 48 miles in David how far did Jennifer Drive
    13·1 answer
  • Given: DR is the tangent to Circle O. If m of angle RDC = 150, then m DAC = A. 75 B.150 C.300
    8·1 answer
  • What two numbers multiply to get 45 but add to get -12
    13·1 answer
  • Find the range of possible values of n.
    13·1 answer
  • If the standard deviation of returns on the market is 20 percent, and the beta of a well-diversified portfolio is 1.5. Calculate
    13·1 answer
  • Find the area of the triangle with the given measurements. Round the solution to the nearest hundredth if necessary.
    11·2 answers
  • A bird (B) is spotted flying 900 feet from an observer. The observer (O) also spots the top of a tower (T) at a height of 200 fe
    6·1 answer
  • Samaia buys two water bottles and three bags of chips for $9.45. Abdullah goes to the same store and buys four water bottles, as
    6·1 answer
  • I CAN'T FIND THE ANSWER AND I REALLY NEED HELP
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!