Answer:
Part 1 .
As per the given statement: In t hours the train has traveled s miles.
Distance of the train = s mile
Time = t hours
Formula for :
Speed of the train(v) =
or
mph .....[1]
Substitute the value of t = 3 hours and s = 180 miles in [1], to solve for v;
Therefore, the speed of the train(v) is, 60 mph
Part 2.
Similarly,
The formula for speed of the train (v) is given by;
Substitute the value of t = 2.5 hours and s = 225 miles to solve for v;
Therefore, the speed of the train(v) is, 90 mph
Answer:
270° rotation about point B'
Step-by-step explanation:
Point B' is common to the last two figures, so is the center of rotation. Each of the segments of the figure A"B'C"D" is rotated clockwise 90° from the corresponding segment of A'B'C'D'. A 90° clockwise rotation is the same as a 270° counterclockwise rotation. The appropriate choice is ...
a 270° rotation about point B'
Answer:
1 roll of toilet paper would cost $50
Step-by-step explanation:
Answer:
b. 14 + (112 ÷ n)
Step-by-step explanation:
En esta pregunta la opcion que deberiamos elegir seria 14 + (112 ÷ n). En esta expresion primero se divide 112 por algun numero que es representado por el variable n. Luego de obtener el cociente de esta division, se le agrega 14 al cociente. Esto nos daria un valor nuevo y representa perfectamente la frase en esta pregunta... catorce más que el cociente de ciento doce y algún número