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nata0808 [166]
3 years ago
6

What is the value of a in the equation 5a-10b=45, when b=3?

Mathematics
2 answers:
Ainat [17]3 years ago
8 0

Answer:5a-30=45


Step-by-step explanation:

So something times 5 minus 30 will give you 45


marysya [2.9K]3 years ago
4 0
Your answer is 15 5a-30=45 you would then add 30 to 45 to get 75
5a=75 you then divide 75 by 5 and end up to get 15
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A number is equal to 3 times a smaller number. Also, the sum of the smaller number and 4 is the larger number. The situation is
g100num [7]

A number is equal to 3 times a smaller number. Also, the sum of the smaller number and 4 is the larger number. The situation is graphed on the coordinate plane below, where x represents the smaller number and y represents the larger number.  

c,

y=3x and y=x+4                                                                                                                                            

                                                                                             

                                                                                                                                                     

7 0
3 years ago
Read 2 more answers
Helpppppp <br><br> Someone please tell me how to do it step-by-step and there’s 2 questions :(
azamat

Answer:

1. The angles of a triangle added up all together is 180. So, we can solve a as an equation!

36+57+a=180.

From this, we can figure out a:

a=87

2. The same goes for this one, just a bit different. We write our equation like this:

3x+90=180

we solve this:

3x=90

we divide both sides by 3 and get:

x=30

5 0
3 years ago
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