Which is the best first step in solving the following system of equations y=7x+3 y=9x
2 answers:
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Answer:
Step-by-step explanation:
we know that
The simple interest formula is equal to
where
I is the Final Interest Value
P is the amount of money borrowed
r is the rate of interest
t is Number of Time Periods
in this problem we have
substitute in the formula above
The value B is 7. If we apply B=7 the answer is 17 for the expression 17×
Step-by-step explanation:
The given expression is 17×
Step:1
Form an equation from given data,
17×= 17..............................(1)
(∵ product equal to 17)
Step:2
Check for alternatives by apply the value of B in eqn (1)
Assume be value of B for check the equation
B=1
Equation becomes,
17× = 2.4286 ≠ 17
Take, B=2,
17× = 4.8571 ≠ 17
Take, B=3,
17× = 7.2857 ≠ 17
similarly,
B=7,
17× = 17 (∵ The product equals to 17)
Result:
So, the answer for B is 7.