Answer:
1/4
Step-by-step explanation:
We can find the slope of a line given two points from the formula
m = (y2-y1)/(x2-x1)
= (-2--1)/(-12--8)
= (-2+1)/(-12+8)
=-1/-4
= 1/4
Answer:
85 copies
Step-by-step explanation:
use the comparison method
no. of copies. $
10 4
x. 34
4x = 34×10
x= 340/4
x= 85
the value of x is 85
y= -32
Step-by-step explanation:
step 1: from the first equation you will make X the subject of formula, the equation then becomes;
X= <u>4-y</u>
2
step 2: substitute X in the second equation, the equation then becomes 5 * <u>[</u><u>4-y</u><u>]</u> + 3y = -6
[ 2]
step 3: find the LCM and then cross multiply; <u>20-5y+6y</u> = -6
2
20+y = -12
y= -12-20
y= -32
Answer:
r = 100
6.5r = 650
Step-by-step explanation:
let r be resistors.
6.5r + r = 750
Simplify:
6.5r + r = 750
7.5r = 750
------ ------
7.5 7.5
r = 100
100 × 6.5 = 650
One resistor is 100 ohms, and he other is 650 ohms.
Hope this helped.
