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taurus [48]
3 years ago
15

Expand and simplify 3(2a+3b)+2(a+2b)

Mathematics
2 answers:
kykrilka [37]3 years ago
8 0

Answer:

6a+9b+2a+4b

6a+2a+9b+4b

8a+13b

ICE Princess25 [194]3 years ago
5 0

Answer:

8a+13b

Step-by-step explanation:

First start by multiplying the coefficient with the parantheses.

3(2a+3b)+2(a+2b)

6a+9b+2a+4b

8a+13b

This equation cannot be further simplified.

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Kevin and his children went into a restaurant and he bought $31.50 worth of hotdogs and drinks. Each hotdog costs $4.50 and each
stich3 [128]

Answer:

<em>He bought 6 hotdogs and 2 drinks</em>

Step-by-step explanation:

<u>System of Equations</u>

Kevin and his children went into a restaurant and bought $31.50 worth of hotdogs and drinks. Each hotdog costs $4.50 and each drink costs $2.25.

To solve the system of equations, we'll call the variables:

x = number of hotdogs

y = number of drinks

The first condition yields the equation:

4.50x + 2.25y = 31.50          [1]

It's also known he bought 3 times as many hotdogs as drinks, thus:

x = 3y         [2}

Substituting [2] in [1]:

4.50(3y) + 2.25y = 31.50

Operating:

13.5y + 2.25y = 31.50

15.75y = 31.50

y = 31.50/15.75

y = 2

And

x = 3*2 = 6

He bought 6 hotdogs and 2 drinks

5 0
3 years ago
The work of a student to solve the equation 2(5y – 2) = 12 + 6y is shown below: Step 1: 2(5y – 2) = 12 + 6y Step 2: 7y – 4 = 12
kirza4 [7]
2(5y - 2) = 12 + 6y
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so the correct answer is B 
7 0
3 years ago
Read 2 more answers
A recipe calls for of a cup of milk for 11 cookies. How many cups of milk are needed to make 66 cookies?
stiv31 [10]
It should be 7 cups of milk
5 0
3 years ago
10 points!!! Please answer 8 and 9 and hurry
lilavasa [31]

Answer:

Step-by-step explanation:

since EG bisects angle DEF

31 = x + 15

31 - 15 = x

x = 16 degree

6x - 4 = 56

6x = 56 + 4

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x = 10

4 0
3 years ago
Read 2 more answers
Tricia got a 6% raise on her weekly salary. The raise was $30 per week. What was her original weekly salary in dollars per week?
serious [3.7K]

Answer:   Original salary = $500  

Step-by-step explanation:  Tricia got a 6% raise on her weekly salary. The

raise was $30 per week.  

Let x be the original salary  

x times the raise percentage = raise amount  

6%= 6/100=0.06, raise amount = 30    

Now we solve for x  

Divide by 0.06 on both sides    

Original salary = $500

6 0
3 years ago
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