D. 90 im pretty sure its this. hope this helped :)
Answer:
0.5 miles per hour
Step-by-step explanation:
it going up by 0.5
<span>Choose two equations and use them to eliminate one variable.Choose another pair of equations and use them to eliminate the same variable.<span>Use the resulting pair of equations from steps 1 and 2 to eliminate one of the two remaining variables.</span></span>
Answer:
t≅13.33h
Step-by-step explanation:
Adam (A) works at constant rate of 50tiles/h
Briana (B) works at constant rate of 55tiles/h, this means that A=50 tiles per hour and B=55 tiles per hour, then A+B = 105tiles/h together, but the floor consists of 1400tiles, so if 105 tiles are installed in one hour, then 1400 tiles in how long they will be installed?
t = 1400tiles*h/105tiles≅ 13.33 h
Answer:5.7 D
Step-by-step explanation:
