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Cerrena [4.2K]
3 years ago
14

An adult blinks about 450 times in 30 minutes. A 12 year old blinks about 150 times in 15 minutes. How many more times does an a

dult blink in 60 minutes that a 12-year-old?
Mathematics
1 answer:
kaheart [24]3 years ago
5 0

Answer:

300

Step-by-step explanation:

An adult blinks

450 in 30 minutes

900 in 60 minutes (multiply 2 on both sidds)

A 12-year-old blinks

150 times in 15 minutes

600 times in 60 minutes (multiply 4 on both sides)

Difference:

900 - 600 = 300.

An adult blinks 300 more times.

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you deposit $2,000 in an account that earns simple interest. after 6 months the account earns $210 in interest. what is the annu
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Answer:

21%

Step-by-step explanation:

210 is 10.5% of the amount that is for 6 months doubling it will make it 420 that is 21% of the total amount of 2000.

8 0
2 years ago
Ill give brainliest to whoever answers 1st
salantis [7]

Answer:

0, 5, 8, 9, 8, 5, 0

Step-by-step explanation:

4 0
2 years ago
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What’s.the perimeter of a square with an area of 49 cm2
Free_Kalibri [48]

Answer:

<h3>28</h3>

Step-by-step explanation:

Area of a square =

s^2

Perimeter =

4\times s

Where s = side

Solve for s using the area

A =49\\\\49 = s^2\\\\Square\:root \:both\:sides\:of\:the\:equation\\\\\sqrt{49} = \sqrt{s^2} \\\\7 =s\\\\s =7

Find the perimeter

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8 0
3 years ago
PLEASE HELP ME! I BEG YOU! ILL EVEN GIVE BRAINLIEST!! HELP ASAP!!!
andreev551 [17]
D because u have to look the fraction
6 0
2 years ago
Help pls im confused and i will give you brainliest
MrRissso [65]

Answer: the answer is b

Step-by-step explanation:

Given two points, the equation of the line may be determined by,

                           y - y1 = ((y2 - y1) / (x2 - x1))(x - x1)

Substituting the given values,

                               y - 7 = ((9 - 7) / (6 - 3))(x - 3)

Simplification will yield to an answer of,

                                    y = 2x/3 +5

Thus, the answer is the second choice.

hope this helps :)

8 0
3 years ago
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