<span>10x² + 20y² =200 / </span>÷ 200 ;
x^2 / 20 + y^2 / 10 = 1 ;
x^2 /
+ y^2 /
= 1 ;
b =
; a =
;
Major axis is 2a = 2
;
Answer:
In 3 hours Clint will catch up with Sue
Step-by-step explanation:
Let
x -----> the time in hours
y ----> the distance in miles
Remember that
The speed is equal to divide the distance by the time
so
The distance is equal to multiply the speed by the time
The linear equation in slope intercept form is equal to
where
m is the slope or unit rate
b is the y-intercept or initial value
In this problem
<em>Clint's equation</em>
The slope is equal to the speed
so
The y-intercept is equal to 0 miles (at the time x=0, the distance traveled is zero)
substitute
----> equation A
<em>Sue's equation</em>
The slope is equal to the speed
so
The y-intercept is equal to 60 miles (at the time x=0, the distance traveled is 60 miles)
substitute
-----> equation B
Equate equation A and equation B
Solve for x
therefore
In 3 hours Clint will catch up with Sue
Answer:
Tuesday
Step-by-step explanation:
Let the days of the week be numbered 1–7, starting with Monday and ending with Sunday. Let <em>t</em> represent today. We can equate the number of skirts finished by Friday (day 5) with the ones finished by Sunday (day 7) at the lower rate. (days × (skirts/day) = skirts)
... (5-t)×5 = (7-t)×3
... 25 -5t = 21 -3t . . . . . eliminate parentheses
... 4 = 2t . . . . . . . . . . . . add 5t-21
... 2 = t . . . . . . . . . . . . . divide by 2
Day 2 corresponds to Tuesday.
_____
<em>Check solution</em>
(5-2)·5 = 15 = (7-2)·3 skirts are being made.
Answer:
This is basic mathmatics use a calculator or your laptop
Step-by-step explanation: