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3 years ago

B(a+b)+a; given a =9 and b=4

Mathematics

2 answers:

Harman [31]3 years ago

8 0

b(a+b) + a = 4(9+4) + 9

4(9+4) + 9 = 61

So the answer is 61

Hope this helps

Anna007 [38]3 years ago

4 0

To solve this expression, we simply have to substitute in the given values for a and b into the expression. This means we should replace every a with a 9 and every b with a 4, and then simplify from there. This is modeled below:

b(a+b) + a

4(9+4) + 9

To simplify, we must use the order of operations, which is outlined by PEMDAS. This states that we should simplify what is in parentheses first, then exponents next, after that multiplication and division, and finally addition or subtraction. This lets us know that we should solve what is in the parentheses first in our example.

4(9+4) + 9

4(13) + 9

Because the 4 and 13 are being multiplied together, we should compute that next because it is the next letter in PEMDAS in the expression.

52 + 9

Finally, we can add these two numbers together to find our answer.

Therefore, your answer is 61.

Hope this helps!

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Answer:

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Step-by-step explanation:

Let

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2. Allison earned a total of $96, hence

$12x+8y=96$

You get the system of two equations:

$\left\{\begin{array}{l}x-y=3\\ \\12x+8y=96\end{array}\right.$

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3 years ago

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polet [3.4K]

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3 years ago

Read 2 more answers

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Mars2501 [29]

Answer:

Step-by-step explanation:

I would see a pattern like this

1 4 6 2 5 7 8 9 7 15 41 ?

------------------- ---------

start pattern key

then

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2 years ago

The ages of five friends are 25, 36, 33, 36 and 30 how many of friends are older than the average (arithmetic mean) age?

Murrr4er [49]

Answer:

3 friends are older than the average.

Step-by-step explanation:

First find the mean. The mean can be found adding all the numbers in the set together and dividing by the amount of numbers in the giving set:

(25 + 36 + 33 + 36 + 30)/5 = (160)/5 = 32

The average age is 32. There are 3 friends that are older than the average (33 , 36 , 36, respectfully).

4 0

2 years ago

I don’t know how to solve this

Romashka-Z-Leto [24]

Answer:

see explanation

Step-by-step explanation:

The perimeter is the length of all the sides in the figure.

The arc of the semi- circle is included in this.

length of arc = $\frac{1}{2}$ πd ← d is the diameter

here d = 8, hence

arc = $\frac{1}{2}$ π × 8 = 4π ← exact length

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3 0

3 years ago