I hope this helps you
3.5×10^6/5×10^-3
35×10^5/5×10^-3
7×10^5×10^3
7×10^5+3
7×10^8
700000000
Answer:
- $52
- this estimate is a little low
Explanation:
a) I might choose 6 1/2 hours and $8 per hour, so the estimated earnings would be ...
6(8) +(1/2)(8) = 52 dollars . . . . estimated earnings
These values are purposely chosen so that one is a little high and the other is a little low, hopefully producing a closer estimate than if both numbers were high (as 7 hours, $8, for example).
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b) Using 800 instead of 790 means the pay estimate is about 1/80 = 1.25% high.
Using 6 1/2 instead of 6 3/4 means the hours estimate is about 1/27 ≈ 3.7% low.
So, we expect the product of these values to be slightly low, perhaps by about 2.5%.
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<em>Comment on estimating</em>
If you can estimate the error in the estimate with some reasonable accuracy, you can use that to adjust the estimate to a pretty close value.
Answer:95
Nah I'm playing I dont know
Student programs = 12,000 x 0.5 = 6000
teacher programs = 12000 x 0.23 = 2760
school supplies = 12000 x 0.17 = 2040
technologies = 12000 x 0.10 = 1200
1. 6000 - 2040 = 3960 this is TRUE
2. 6000 - 1200 = 4800 this is FALSE
3. 6000 + 2760 = 8760 ( approximately 8800) this is TRUE
4. teacher programs = 2760 this is FALSE
5. FASLE
1 and 3 are correct answers
Answer:
12x2 – 75 = 3 (2x+5)(2x – 5)
Step-by-step explanation: