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Nostrana [21]
3 years ago
10

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

ink in 60 minutes than a 12-year-old?
Mathematics
2 answers:
Scilla [17]3 years ago
5 0

Answer:

1.5 times

Step-by-step explanation:

450=30 minutes

450*2=900=60 minutes

150=15 minutes

150*4=600=60 minutes

900/600=1.5 times

kumpel [21]3 years ago
4 0

Answer:

An adult blinks 300 times more in 60 minutes than a 12 year old

Step-by-step explanation:

450 x 2 = 900

150 x 4 = 600

900 - 600 = 300

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allsm [11]

Answer:

FV= $669.11

Step-by-step explanation:

Giving the following information:

Purchase price (PV)= $800

Decrease value (d)= 1.5% per year

Number of periods (n)= 12 years

<u>To calculate the value of the card after 12 years, we need to use the following formula:</u>

FV= PV / (1 + d)^n

FV= 800 / (1.015^12)

FV= $669.11

6 0
2 years ago
Please help me if you can. Please also write how you got the answer thank you.
babunello [35]

Answer:

Question 9: Variables: (smallest) s, q, r (largest)

Question 10: 5 whole numbers (7, 8, 9, 10, and 11)

Step-by-step explanation:

For question nine, there are two given statements... s=q-2 and q<r. Say we plug in 10000 (a really big #) in for q, then we would get s=9998 and r>10000. This way, we can see that s would be the smallest, then q, and r is the largest. <em>(q<r can be written as r>q)</em>

<em />

For question 10, it states \frac{1}{4}. This can be split into \frac{3}{x} and \frac{3}{x} . When x is 12 in the first equation then \frac{3}{12} = \frac{1}{4} and when x is 6 in the second equation \frac{3}{6} =0.5 (0.5 is also  \frac{1}{2}). Therefore, x must be a whole number less than 12 and greater than 6, and it cannot be either 12 or 6. Whole numbers between 6 and 12 are 7, 8, 9, 10, and 11  or  5 whole numbers.

4 0
3 years ago
Which of these expressions are equivalent to −5+(2.5+315)⋅4.25 ? Choose the TWO correct answers.
qaws [65]

Answer: A and D

Step-by-step explanation:because my teacher told me

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3 years ago
Trina had 50 eggs. After using some of her eggs to make 12 batches of brownies, she has 14 eggs remaining. How many eggs did Tri
Alexeev081 [22]

Step-by-step explanation:

eggs used : 50-12= 38 eggs

\frac{38 \: eggs}{12 \: batches}  = 3.1667eggs \: per \: batch

8 0
2 years ago
PLEASE ANWSER CORRECTLY!! I WILL MARK BRAINIEST!!!
Greeley [361]
Z=82 vertical or opposite angle theorem
15x-7 + 82=180 supplementary angles theorem
so 15x +75 =180
15x=180-75
x=105/15
x=7
7 0
2 years ago
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