Answer:
I believe the answer is B) All real numbers
We are given some statements, we need to find which of the given statements is an advantage to using equations.
<h3><em>The correct option is </em></h3><h3><em>(A). When given two names for the same quantity, you can use algebra to solve the equations.</em></h3>
Incorrect options are :
(B). You can forget what an equation represents when it is used by itself.
(C). every problem needs an equations if you want to solve it.
He would probably have to walk the dog seven more times
Answer:
14
Step-by-step explanation:
AB = 10+( 10/15 × 6)
= 10 + 4= 14
Answer:x=-3 y=26
Step-by-step explanation:
3x+y=17.............(1)
x+2y=49..............(11)
From (11) x=49-2y
Substitute x=49-2y in 3x+y=17
3(49-2y) + y=17
Open bracket
147-6y+y=17
147-5y=17
Collect like terms
5y=147-17
5y=130
Divide both sides by 5
5y/5=130/5
y=26
Substitute y=26 in x+2y=49
x+2(26)=49
x+52=49
Collect like terms
x=49-52
x=-3