Answer:
15 more students needed
Step-by-step explanation:
If they have 16 signed up and need minimum of 21, then need an equation
1: 21-16=?
2: 21
- 16
-------
15
Answer:
We must must transform the standard form equation 3x+6y=5 into a slope-intercept form equation (y=mx+b) to find its slope.
3x+6y=5 (Subtract 3x on both sides.)
6y=−3x+5 (Divide both sides by 6.)
y=−
6
3
x+
6
5
y=−
2
1
x+
6
5
The slope of our first line is equal to −
2
1
. Perpendicular lines have negative reciprocal slopes, so if the slope of one is x, the slope of the other is −
x
1
.
The negative reciprocal of −
2
1
is equal to 2, therefore 2 is the slope of our line.
Since the equation of line passing through the point (1,3), therefore substitute the given point in the equation y=2x+b:
3=(2×1)+b
3=2+b
b=3−2=1
Substitute this value for b in the equation y=2x+b:
y=2x+1
Hence, the equation of the line is y=2x+1.
Step-by-step explanation:
Answer:
Rental charge is $273.97
Step-by-step explanation:
Given that Kenny rented an SUV for 3 days and drove it 430 miles. The daily rate was $46.99 and $0.35 per mile with the first 50 miles being free. we have to find the rental charge.
Total miles which drove are 430 miles.
Given that first 50 miles are free ∴ the charged miles are 430-50=380 miles
Cost of 1 mile given is $0.35
Cost for 380 miles is
The daily rate was $46.99 therefore for three days 3($46.99)=$140.97
Hence, the total charge is = Cost for 380 miles + Daily rate for 3 days
= $133+$140.97 =$273.97
J. 4y + 8
4(y + 2). <—— multiply 4 by what’s in the parentheses
4 • y = 4y
4 • 2 = 8