Answer:
a=
15
b=1/3
Step-by-step explanation:
- key rule: see the graph carefully to get the following identified points.
- from the given graph, it can be seen that, the curve passes through (0,15)
- by substituting this point in y=a*(b)^x,
15=a*(b)^0
15=a
- it can also be seen that the curve passes through (1,5)
- by substituting this point in y=a*(b)^x,
5=a*b
5=15*b ( since, we have found that a=15 from the before steps)
- dividing both the sides by 15,
5/15=b=1/3
a=
15
b=1/3.
Well one example is that we know 5*9 is 45. So 45+9=54. So, 6*9=54
Answer:
$130
Step-by-step explanation:
Cost = 85
To make 30% profit, he would need to sell them at:
85 + (0.3)(85) = 110.5
Now, he would need to sell them at 110.5 AFTER giving a 15% discount. So essentially we are asking, "<em>What number discounted (decreased) by 15% would give us 110.5??"</em>
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We can let that price be x and write the equation:
x - (0.15)(x) = 110.5
x - 0.15x = 110.5
0.85x = 110.5
x = 110.5/0.85 = 130
The retailer should mark the jacket at $130
Step.1:"How many time do I have to divide"
Step 2:"Multiply"
Step 3:"subtract"
Step 4:Drop it down
Step 5:"If nessisary" Repeat
The slope is -1/2
Step by step
1) formula m=y2-y1/x2-x1
2) slope equals = -1+2/-8+6
3) 1/-2
4) answer is -1/2