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ivolga24 [154]
3 years ago
12

Renee notices that her laptop is decreasing in value over time. She paid $1,160 for the laptop, and after 4years, she sees that

it is worth $740.
Find a linear function V(t) to model the value of the laptop as a function of t, where t is time in years.
Give your answer in the form V(t)=mt+b. Do not use a comma in any numbers.
Mathematics
1 answer:
tankabanditka [31]3 years ago
7 0
Using the formula for slope, we can find out that (1160 - 740) \div (0 - 4) =  - 105 So -105 is the slope, and because she bought her laptop at $1160, the y-intercept is 1160. This means that the equation is V(t)=-105t+1160.
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Answer:

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7 0
3 years ago
A school district transported a total of 409 students and teachers to a zoo in buses and vans.
valina [46]

Answer: There are 385 students and teachers who rode to the zoo in buses and 24 students and teachers who rode to the zoo in trains.

Step-by-step explanation:

Since we have given that

Total number of students and teachers = 409

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Number of students and teachers each van transported = 12

According to question,

55(x+5)+12x=409\\\\55x+275+12x=409\\\\67x=409-275\\\\67x=134\\\\x=\frac{134}{67}\\\\x=2

Total number of students and teachers who rode to the zoo in buses will be

55(x+5)\\\\=55(2+5)\\\\=55\times 7\\\\=385

Total number of students and teachers who rode to the zoo in vans will be

12x\\\\=12\times 2=24

Hence, there are 385 students and teachers who rode to the zoo in buses and 24 students and teachers who rode to the zoo in trains.

6 0
3 years ago
Two percent of half a number is 5. What is the number ?
Anika [276]

Answer:

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If 1% is 2.5 then 100% is 250.  Since 250 is half of a number, you went then multiply by 2 to double that number which is 500.

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