Answer:
6 calls
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Step-by-step explanation:
12 min/4 phone calls
unit rate: 3 min per phone call
c=#of calls
3c = 18
c=6
6 calls
Answer:
71
Step-by-step explanation:
Divide 71 by 7 and you get 10 and 1 leftover. Divide 71 by 4 and you get 17 with 3 leftover.
Answer:
Step-by-step explanation:
The point slope form of the equation is expressed as
y - 7/2 = 1/2(x - 4)
Comparing with the point slope form of an equation which is expressed as
y - y1 = m(x - x1)
m represents slope
Therefore
m = 1/2
y1 = 7/2
x1 = 4
The slope intercept form of the equation of a straight line is expressed as
y = mx + c
Where c represents the intercept
Substituting y = 7/2, m = 1/2 and x = 4 into y = mx + c, it becomes
7/2 = 1/2 × 4 + c
7/2 = 2 + c
c = 2 - 7/2 = (4 - 7)/2 = - 3/2
Therefore, the y intercept is - 3/2
Answer:
5%
Step-by-step explanation:
Let the interest rate be x100
So we have for simple interest: x100×$2600=$390
This is the same as: ddddddddddx×$2600100=$390
x×$2600100=$390
Divide both sides by $26.
x×$26$26=$390$26
x×1=$390$26
x=15
But x is from x100
The % symbol is like a unit of measurement and one that is worth 1100
So 15100d→d15×1100d→d15×%→15%
But this is over 3 years so the annual interest rate is d15%3=5%