2 years ago

The French club is sponsoring a bake sale to raise at least $365. How many pastries must they sell at $2.80

1 answer:

7 0

Answer:

Step-by-step explanation:

Let the number of pastries is x.

<u>We have an inequality:</u>

The least whole number for x is 131.

Correct choice is D

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mart [117]

Answer:

2.0

Step-by-step explanation:

x = age

y = average systolic blood pressure

x₁ = 40 years old, y₁ = 110 systolic blood pressure

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$\text{Slope of a line}=m=\frac{y_2-y_1}{x_2-x_1}\\\Rightarrow m= \frac{130-110}{50-40}\\\Rightarrow\frac{20}{10}\\\Rightarrow m= 2.0$

∴ Slope of the regression line is 2.0

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