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anonymous
 one year ago
An unknown number y is 15 more than an unknown number x. The number y is also x less than 8. The equations to find x and y are shown below.
y = x + 15
y = −x + 8
Which of the following statements is a correct step to find x and y?
Multiply the equations to eliminate y. Add the equations to eliminate x. Write the points where the graphs of the equations intersect the xaxis. Write the points where the graphs of the equations intersect the yaxis.
anonymous
 one year ago
An unknown number y is 15 more than an unknown number x. The number y is also x less than 8. The equations to find x and y are shown below. y = x + 15 y = −x + 8 Which of the following statements is a correct step to find x and y? Multiply the equations to eliminate y. Add the equations to eliminate x. Write the points where the graphs of the equations intersect the xaxis. Write the points where the graphs of the equations intersect the yaxis.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Which one do you think it is?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Multiply the equations to eliminate y.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Well if you multiply the equations, y won't be eliminated, so that can't be it.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Write the points where the graphs of the equations intersect the yaxis.??

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No. You would actually want where the two lines intersect.

hybrik
 one year ago
Best ResponseYou've already chosen the best response.0"Add the equations to eliminate x." is correct

hybrik
 one year ago
Best ResponseYou've already chosen the best response.0To solve this you need to combine the equation into one

hybrik
 one year ago
Best ResponseYou've already chosen the best response.0So you add X to remove X to find Y

hybrik
 one year ago
Best ResponseYou've already chosen the best response.0Which gives you y = 23, then substitute Y into any equation to find X

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@hybrik I was getting to that. On Openstudy, you want to help them find the answer themself, not give them the answer.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Betsey is 11 years older than Waldo. Betsey's age is 15 years less than three times Waldo's age. The system below models the relationship between Betsey's age (b) and Waldo's age (w): b = w + 11 b = 3w − 15 Which of the following methods is correct to find Betsey's and Waldo's age? Solve w + 11 = 3w − 15 to find the value of w. Solve b + 11 = 3b − 15 to find the value of b. Write the points where the graphs of the equations intersect the xaxis. Write the points where the graphs of the equations intersect the yaxis.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Again, which do you think it is?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Solve w + 11 = 3w − 15 to find the value of w.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Bella and Heather put some money into their money boxes every week. The amount of money (y), in dollars, in their money boxes after a certain amount of time (x), in weeks, is shown by the equations below: Bella: y = 25x + 60 Heather: y = 30x + 10 After how many weeks will Bella and Heather have the same amount of money in their money boxes, and what is that amount? 10 weeks, $10 10 weeks, $310 9 weeks, $310 310 weeks, $10

hybrik
 one year ago
Best ResponseYou've already chosen the best response.0@ComputerNerd I just started 20 minutes ago, sorry for not knowing..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I need helpppppppppppppppppppppp

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Variable x is 7 more than variable y. Variable x is also 1 less than y. Which of the following pairs of equations best models the relationship between x and y? x = 1y x = y + 7 x = y + 7 x = y − 1 y = x + 8 y = x − 1 y = 7x y = x + 1
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