Answer:
Ann - 61 kg
Beth - 58 kg
Celine - 54 kg
Step-by-step explanation:
We use Algebra to solve this. We give unknown to one of them. I have decide to use x here and give it to earn.
Ann = x
Ann + beth = 119 meaning ( 119 - x) = beth
beth = 119 - x
celine + ann = 115 meaning(115 - x) = celine
celine = 115 - x
know we know>
Ann = x
beth = 119 - x
celine = 115 - x
and beth + celine= 112 kg meaning =>
119 - x + 115 - x = 112
we collect the like terms. 119 and 115 cross the equal sign to the other side.
-x-x = 112 - 119 - 115
-2x = -122
-2x/-2= -122/-2
x = 61
therefore ann has 61 kg
beth has 119 - 61 = 58 kg
celine has 115 - 61 = 54 kg
If you need any clarification or more explanation pls do mention at the comment section.
Hope this helps and if it does pls mark as branliest answer thx.
Substitution, elimination, and graphing.
Answer:
D
Step-by-steThe graph represents the heights of two climbers on a climbing wall over a 12-minute time period.
A graph titled The Climbing Wall where the horizontal axis shows time (minutes), numbered 1 to 12, and the vertical axis shows height (feet) numbered 2 to 24. The line labeled Brynn's climb begins at 0 feet in 0 minutes, to 15 feet from 5 to 7 minutes, to 0 feet in 10 minutes. The line labeled Abby's climb begins at 4 feet in 0 minutes, to 14 feet from 4 to 6 minutes, to 22 feet in 8 minutes, to 0 feet in 12 minutes.
Which statement is true about the climbers’ heights?
Brynn was resting at a constant climbing height when Abby’s climbing height was decreasing.
Abby’s climbing height was decreasing when Brynn’s climbing height was increasing.
The heights of both climbers increased, then decreased, with no rest at a constant height.
Both climbers rested on the wall at a constant height for 2 minutes.p explanation:
The answer is B 63ft squared