2 years ago

The difference of twice a number and 6 is at most 25

Mathematics

1 answer:

Hitman42 [59]2 years ago

6 0

This is your personal answer
2( x - 6) <= 28

x - 6 <= 14

x <= 20

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Aldos coffee shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Aldo $5.80 per pound, and type of

LuckyWell [14K]

Let A represent amount of Type A coffee pounds used.
Let B represent amount of Type B coffee pounds used

A + B = 156
B = 156 - A
A = 156 - B

5.80A + 4.65B = 826.60
580 (156 - B) + 4.65B - 826.60 = 0
904.8 - 5.80B + 4.65B - 826.60 = 0
904.8 - 1.15B - 826.60 = 0
78.2 - 1.15B = 0
78.2/1.15 = 1.15B/1.15
68 = B
B = 68 pounds of Type B coffee

There's many more steps you can take to check and etc but am too lazy to put down sorry.

5 0

2 years ago

If the instructions for a problem ask you to use the smallest possible domain to completely graph two periods of y = 5 + 3 cos 2

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The period of a sinusoid $\cos 2(x-c)$ is $\dfrac{2\pi}2=\pi$ , so any range such that $\mathrm{Xmax}-\mathrm{Xmin}=2\pi$ will give two complete periods.