1. 5x= -80. x= -16
2. x - 73 = 129. x = 202
3. x/-8 = 22. x = -176
4. 2x + 8 = 8. 2x = 0. x = 0
5. 3x - 7 = 40. 3x = 47. x = 47/3
Answer:
Step-by-step explanation:
1 package contains 16 slices. A dozen packages is 12 packages. Therefore, a dozen packages will contain 16×12 slices which is 192 slices.
I = PRT/100
P = Principal, R = Rate, T = Time
I = 1500 * 7.5 * 1.5 /100
I = 168.75
Interest owed = $168.75
The vertex can be found at x=0, i.e, h=290. The vertex tells us that the bridge is 290 ft. high at its' midpoint. The max width is when y=0, or, in other words:
0.0159x²=290
x²=290/.0159= 18239
x=±135.05
The distance between the feet of the arch is 2x135.05, or 270.10
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