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3 years ago

"Quick question.

Mathematics

2 answers:

givi [52]3 years ago

8 0

Based on the given figure of a plate above, the inner and the outer rims are called CONCENTRIC CIRCLES. By definition, concentric circles are circles having the same or common centers. And in the figure, both the outer and the inner rims have a common center. In addition, the part between two concentric circles of different radii is called an annulus. Hope this is the answer that you are looking for.

Eddi Din [679]3 years ago

6 0

Answer:

Step-by-step explanation:

The answer is concentric circles because the other options just don't make sense. Concentric secants, radius, and chords do not look like that. They have different meanings and also I took a test for FLVS and got it right I did a lesson on how it explains the meanings of each of the terms I just said and it does not match the explanation.

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1. Gummy worms are $3.50 per pound

Alexxandr [17]

The constant of proportionality is 3.50 since gummy worms are sold at the same rate per pound.

3.50x, equation
3.50(2.5) = $8.75 for 2.5 pounds

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3 years ago

The numerator of a certain fraction is four times the denominator. If 10 is added to both numerator and denominator the resultin

Ronch [10]

20/5 4x/x adding 10 to each 4x+10/x+10 =2 Multiple x+10 to each side 4x+10=2x+20 Then subtract and get 2x=10 Divide X=5 Now plug it back in 20/5

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3 years ago

In the pictures down below Can anyone help? Fractions and percents

wariber [46]

1st Picture:
$3)- \frac{6}{7} +\frac {10}{11}
\\\\LCD:77
\\\\\frac{6}{7}* \frac{11}{11} + \frac{10}{11}*\frac{7}{7}= \frac{66}{77} + \frac{70}{77} = \frac{136}{77} = 1\frac{59}{77} 
 \\ \\ 4) 3\frac{6}{7}* 2 \frac{1}{10}= \frac{27}{7} * \frac{21}{10} = \frac{567}{70} =\frac{81}{10} = 8\frac{1}{10}
\\\\5)2\frac{1}{2}+3\frac{1}{3}
\\\\LCD: 6
\\\\ 2\frac{3}{6} + 3\frac{2}{6} =5\frac{5}{6}
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2nd Picture:

$1)80 percent of 80 = .8*80 =64
\\\boxed{64}
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\\\boxed{95}$

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3 years ago

Sphere a has a radius of 2cm. Sphere b has a radius of 4cm. Calculate the volume of sphere a.

kykrilka [37]

Answer:

sphere a: 33.51 and sphere b: 268.08

Step-by-step explanation:

math

6 0

3 years ago

A large university accepts 60% of the students who apply. Of the students the university accepts, 40% actually enroll. If 30,

kykrilka [37]

Answer:

7,200

Step-by-step explanation:

Let's start by calculating how many students the university accepts. The problem says they accept 60% of the students. 60% as a decimal is 0.6. To calculate 60% of something, you multiply .60 by whatever quantity. In this case, it would be the students.

Number of accepted students = $.6 * 30000$ = 18,000

The university accepts 18,000 students.

Now, the next problem is that of those accepted students, we need to find out how many actually enroll. The problem says they accept 40% of the accepted students. Applying the same principle,

Number of enrolled students = $.4 * 18000$ = 7,200

The number of students that actually enroll is 7,200.

Alternatively, $.6 * 30000 * .4$ would give you the same result.

Combining the pieces together, we are asking for 60% of 30,000. Then getting 40% of that 60%.

3 0

3 years ago