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3 years ago

9

sixty eight students are separated into two groups. the first group is 3 times as large as the second .how many students are in

each group?

1 answer:

xxMikexx [17]3 years ago

8 0

The first group will have 51 and the second will have 17 student

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How do you know which terms to combine and which terms not to combine

katrin2010 [14]

You know when for example they have the same variable or if there is no variable then you could combine them.For example, if it is 3x and 5x you could combine it to get 8x but if it is like 3x and 2y, you can’t combine it since it doesn’t have the same variable

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Rae earns $60 for playing music on Saturday nights at the local coffee house. She makes an average of $5.25 in tips per hour. Wr

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3 years ago

163. The sum of an odd number and an even number is --

crimeas [40]

Answer:

C

Step-by-step explanation:

I would say C because,

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4 years ago

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Tresset [83]

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Step-by-step explanation:

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4 years ago

Chord AB subtends two arcs with measures in the ratio of 1:5. Line l is tangent to a circle at point A. Find the measure of the

elena-14-01-66 [18.8K]

Answer:

30°

Step-by-step explanation:

If chord AB subtends two arcs with measures in the ratio of 1:5, then the measure of minor arc is x and the measure of major arc is 5x. Thus,

$x+5x=360^{\circ}\\ \\6x=360^{\circ}\\ \\x=60^{\circ}.$

Thus, the measure of the angle AOB is 60°. Consider isosceles triangle AOB (because AO=BO=radius of the circle). The angles adjacent to the base AB are congruent, thus

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Since line CD is tangent to the circle,

$\angle CAO=90^{\circ}.$

Hence,

$\angle CAB=\angle CAO-\angle BAO=90^{\circ}-60^{\circ}=30^{\circ}.$

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4 years ago