Ok, firstly you need to plug in any number you can star by 1, 0 whatever, then add 2 numbers more, only to do accurate the graph and finally add the given number (3) then simplify:
y= 2(3)+4 = 10
B) $10 dollars after 3 days of late.
Answer:
Step-by-step explanation:
x = 2 ; y = 4
3x + 2y + 4 = 3*2 + 2*4 + 4
= 6 + 8 + 4
= 18
Answer:
She deposited dollars
Step-by-step explanation:
Given -
Rate of interest %
Rate of interest compounded quarterly
Time period years
Amount after years dollars
We shall use the following equation for solving this question
Where A is the final amount after time period t
P is the principal amount
r is the rate of interest
and t is the time period
Substituting the given values in above equation, we get -
She deposited dollars
Answer:
32
Step-by-step explanation:
the denominators are the same, so just add the two fractions on the right and subtract it from the answer on the left.
3500/7+210/7=3710/7
subtract 3710 from 3742
= 32
Answer:
3.2
Step-by-step explanation:
x² + xy = 20
Take the derivative with respect to time:
2x dx/dt + x dy/dt + y dx/dt = 20
(2x + y) dx/dt + x dy/dt = 20
Given x = -5, y = 1, and dx/dt = -4:
(2(-5) + 1) (-4) + (-5) dy/dt = 20
(-10 + 1) (-4) − 5 dy/dt = 20
36 − 5 dy/dt = 20
5 dy/dt = 16
dy/dt = 3.2