Answer:
P=$880,I=$92.40
P=$675,I=$94.50
P=$770,I=$96.79
Step-by-step explanation:
Simple interest rate is the interest eared on principal amount only over time:
#$880 at 5.25% for 2 years
Hence, the interest earned is $92.40
#$675 at 3.5% for 4 years:
Hence, the interest earned is $94.50
#$770 at 4.19 for 3 years:
Hence, the interest earned is $96.79
3x-y=2....(i)
2x-y=3.....(ii)
now adding the eqn I and ii ,
3x-y=2
2x-y=3
+ + +
5x=5
x=1
Now substituting the value of x in eqn I
3×1-y=2
3-y=2
-y=-1
y=1
Basically you are trying to find two numbers that when they are added equals -2 and when multiplied equals -3. As you can see -3 plus +1 is equal to -2. And 1 times -3 equals -3. Therefore you have (x+1)(x-3). In order to check if these are the right numbers you will need to multiply (x+1)(x-3) and will end up with the first equation x^2-2x-3. Hope this helped! :)
Answer:
its pretty simple
Step-by-step explanation:
8 x 8 x 4, so (8 x 8) x 4
64 x 4 = 256
