Answer: p = 100
20/p = 2/10; Cross Multiply
(p * 2) = (20 * 10)
2p = 200; divide 2 from both side
p = 100
Check:
Put 100 in for p
20 / 100 = 2 / 10; is true so 100 is correct
Answer:
4.8 hours
Step-by-step explanation:
6 hours = 360 minutes (6x60)
360/5 = 72 (minutes per person worked)
72/2= 36 (person working at half productivity)
36x 8= 288 (total minutes of 8 people working at half productivity)
288/60= 4.8 (cover minutes back to hours)
Answer:
y = -8/7x - 3
Step-by-step explanation:
A line represents a linear relationship between x and y with constant slope and defined for all values of x and y.
Any line equation in slope intercept form would be of the form
y =mx+c where
m = slope of line
and c = y intercept
In our quesion we are given that slope of line = -8/7
and intercept = negative 3 = -3
Hence equation is
y =-8x/7-3
Answer:
the correct answer is 7 and 9
Answer:
Perimeter = 25
Step-by-step explanation:
J(-2, 5)
K(1, 1)
L(1, -1)
M(-5, -4)
N(-5, 1)
Formula for distance between 2 coordinates is;
d = √((x_2 - x_1)² + (y_2 - y_1)²)
Thus;
JK = √((1 - (-2))² + (1 - 5)²)
JK = √25
JK = 5
KL = √((1 - 1)² + (-4 - 1)²)
KL = √25
KL = 5
LM = √((-5 - (-1))² + (-4 - (-1))²)
LM = 5
MN = √((-5 - (-5))² + (1 - (-4))²)
MN = 5
JN = √((-5 - (-2))² + (1 - 5))²)
JN = 5
Thus;
Perimeter = 5 + 5 + 5 + 5 + 5
Perimeter = 25
