3 years ago

A spinner is divided into 8 equal sections. Two of the sections are red, 3 are green, and 3

Mathematics

1 answer:

Marina86 [1]3 years ago

3 0

Answer:

part a: 1/2, two red, probability is 1/2

part b: 450, 150 times 3 =450, hope it helps

please make me brainliest

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Renee calculated 3/6 plus 2/4 and said the answer equaled 5/10. Amanda solved the same problem and said the answer equaled one w

Yuliya22 [10]

Answer:

Amanda's

Step-by-step explanation:

Given :

3/6 + 2/4

The L. C. M of 6 and 4 = 12

(6 + 6) / 12

12 / 12

= 1

Renne's result = 5/10

Amanda's result = 1 whole

Hence, Amanda's result makes more sense.

5 0

2 years ago

Determine the value of r so that a line through the points (r,3) and (5,-4) has a slope of -1/2

CaHeK987 [17]

$\bf (\stackrel{x_1}{r}~,~\stackrel{y_1}{3})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{-4}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-4-3}{5-r}=\stackrel{\stackrel{slope}{\downarrow }}{-\cfrac{1}{2}}\implies \cfrac{-7}{5-r}=\cfrac{1}{-2} \\\\\\ 14=5-r\implies 9=r$