Answer:
You will need an unknown value at first. Let that value be X.
Step-by-step explanation:
So let's say that Sandra earns 5 dollars per hour and already has 30 dollars. Now lets use this form
y-mx+b(Easy way to write one)
y=5x+30
X Is Number of hours while y is the money gained
Answer:
y = 460 miles per hr
x = 500 miles per hr
Step-by-step explanation:
Let the planes be X any
Let their speeds be xmiles/hr and ymiles/hr respectively
x = y + 40 (assuming X is faster by 40miles/hr)
Distance travelled by X to meet Y = 0.75x
Distance travelled by Y to meet X = 0.75y
0.75x + 0.75y = 720 --------1
Put x = y + 40 in eqn 1
0.75(y+40) + 0.75y = 720
0.75y + 30 + 0.75y= 720
1.5y = 690
y = 460 miles per hr
x = 460 +40
= 500 miles per hr
First 42/78% to get 1% then multiply the number by 100% to get around 53 11/13
The answer is 6
Explanation:
Set up a ratio
The percentage of candy bars left is
100
−
70
=
30
Let 30% be the partial percentage.
Let 100% be the total percentage.
Let x be the partial number of candy bars.
Let 20 be the total number of candy bars.
30
100
=
x
20
Multiply both sides by 20
30
×
20
100
=
x
×
20
20
This leaves
600
100
=
x
Dividing by 100 gives
6
=
x
.
There are 6 candy bars left
The answer is c the absolute value of it all
