Answer:
let x=distance 105 mph train traveled
(456-x)=distance 85 mph train traveled
Travel time = distance/speed (equal in both directions)
x/105=(456-x)/85
85x=105*456-105x
190x=105*456
x=105*456/190=252 miles
travel time=252/105=2.4 hrs
ans:
The two trains will meet in 2.4 hrs
Step-by-step explanation:
there brainliest pls
answer for 2nd is <u>Constant</u><u>.</u>
answer for 4th is <u>Evaluate</u><u>.</u>
answer for 14th is <u>one </u><u>subtracted </u><u>from </u><u>a </u><u>number </u><u>w.</u>
answer for 36th is <u>a</u><u> </u><u>number</u><u> </u><u>n</u><u> </u><u>is </u><u>divided </u><u>by </u><u>2.</u><u>4</u>
<u>hope </u><u>it </u><u>helps </u><u>you </u><u>mate </u><u>thanks </u><u>for </u><u>the </u><u>question </u><u>and </u><u>if </u><u>possible </u><u>please </u><u>mark </u><u>it </u><u>as </u><u>brainliest </u>
To make a square for x²+bx=c, add(

)²on both side
in this case, b is-3/4, half of b is -3/8, and (-3/8)² is 9/64, so you add 9/64 to both side.
Addition: 70 + 80 = 150. You round 65 up because the ones digit is greater than and the same with 77.
Multiplication: Round up since both ones digits are bigger than 5. 70 x 80= 5600.
Make each equation equal to each other, then solve for x.
-x+2=4x+7
-x-4x=7-2
-5x=5
X=-1
Sub x into one if the y formulas to find y
Y=4x+7
Y=4(-1)+7
Y=-4+7
Y=3
See my picture for how to graph the points.
Hope this helps!