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ycow [4]
3 years ago
14

In a country where prices are rising quickly, bread that now costs $1.39 will cost 2.4 times as much next year. How much will th

e bread cost next year? (Round your answer to the nearest cent
Mathematics
2 answers:
alekssr [168]3 years ago
8 0
3.336 is the answer!
Olegator [25]3 years ago
3 0
To find this you multiply 1.39 by 2.4. This gives you 3.336, which you round to 3.34. So it will cost $3.34
Hope this helps
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cupoosta [38]

A stuntman jumping off a 20-m-high building is modeled by the equation h = 20 – 5t2, where t is the time in seconds. A high-speed camera is ready to film him between 15 m and 10 m above the ground. For which interval of time should the camera film him?

Answer:

1\leq t\geq \sqrt{2}

Step-by-step explanation:

Given:

A stuntman jumping off a 20-m-high building is modeled by the equation

h =20-5t^{2}-----------(1)

A high-speed camera is ready to making film between 15 m and 10 m above the ground

when the stuntman is 15m above the ground.

height h = 15m  

Put height value in equation 1

15 =20-5t^{2}

5t^{2} =20-15

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height h = 10m  

Put height value in equation 1

10 =20-5t^{2}

5t^{2} =20-10

5t^{2} =10

t^{2} =\frac{10}{5}

t^{2} =2

t=\pm\sqrt{2}

t=\sqrt{2}

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Answer:

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