Answer:
wait
Step-by-step explanation:
what
Answer:
9.5 hours
Step-by-step explanation:
Your general equation is this:
y = mh + b
There is no b value because there is no starting value of miles.
y is the total number of miles driven. m is the amount of miles per hour. h is the number of hours.
570 = 60h
To find h, divide both sides by 60.
h = 9.5 hours
Hope this helps!
Answer:
The number of liters of 50% antifreeze solution is 50 and the number of liters of 90% antifreeze solution is 150
Step-by-step explanation:
Let
x ----> number of liters of 50% antifreeze solution
y ----> number of liters of 90% antifreeze solution
we know that
50%=50/100=0.50
90%=90/100=0.90
80%=80/100=0.80
x+y=200
x=200-y ------> equation A
0.50x+0.90y=0.8(200) -----> equation B
substitute equation A in equation B and solve for y
0.50(200-y)+0.90y=160
100-0.50y+0.90y=160
0.40y=160-100
0.40y=60
y=150 liters
Find the value of x
x=200-y
x=200-150=50 liters
therefore
The number of liters of 50% antifreeze solution is 50
The number of liters of 90% antifreeze solution is 150
Distance = root (x1-x2)²+(y1-y2)² = root (-10--4)²+(-2--2)² = 6
the answer is 6 units (The answer is 6 units)
An algebraic expression is an expression that includes constants, variables, and the algebraic operations (add, subtract, multiply, divide.
