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lara [203]
3 years ago
9

What is the median of 1.5 hours 30 minutes 1 hour 15 minutes and 1.25 minutes

Mathematics
1 answer:
mrs_skeptik [129]3 years ago
5 0
We have 1.5 hours 30 minutes = 120 minutes;
1 hour 15 minutes = 75 minutes;
1.25 minutes = 85 minutes;

75 < 85 < 120
The median is 85 minutes.
Finally, 1 hour 15 minutes is the median.
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Andrew took a math test with 40 questions. If he scored an 85%, how many questions did he get correct?
puteri [66]
Andrew answered 34 questions correctly.
I got the answer by divided the 85% by 100% (100% because it's the total percentage.) I received 0.85 when dividing that. Then, I took the 0.85 and divided it by the total of 40 questions, and that gave me the answer of 34.
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3 years ago
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romanna [79]

Answer:

yes? what do you need help with

Step-by-step explanation:

8 0
2 years ago
Use implicit differentiation to find the negative slope of a tangent to the circle x^2+y^2=16 at x=-2
SVETLANKA909090 [29]

Answer:

slope = - \frac{\sqrt{3} }{3}

Step-by-step explanation:

Differentiating implicitly with respect to x

2x + 2y \frac{dy}{dx} = 0

2y \frac{dy}{dx} = - 2x

\frac{dy}{dx} = - \frac{2x}{2y} = - \frac{x}{y}

\frac{dy}{dx} is the measure of the slope of the tangent

rearrange equation to find corresponding y-coordinate of x = - 2

y² = 16 - 4 = 12 = 2\sqrt{3} ⇒ y = ± 2\sqrt{3}

using x = - 2, y = - 2\sqrt{3}, then

\frac{dy}{dx} = - \frac{1}{\sqrt{3} } = - \frac{\sqrt{3} }{3}


3 0
3 years ago
Sandra wants to buy a dress that is on sale for 20% off. Sandra also gets a 5% discount for being a member of the store's buyer'
Paraphin [41]
0.25c - that’s 25% off the cost (c) of the dress
7 0
2 years ago
on monday mrs jones spent 32 dollars on 4 books. on tuesday she spent $16 on more books.each book cost the same amount. how many
Gala2k [10]
She bought 6 books in all because if you divide the whole number of all the books in all which is $32 divide that by 4 so..

32 
÷4=8

so thats just the 4 books then she buys 16 more dollars worth that which you then multiply 4 times 8 which give you 16 so you then add the 4 books to the other 2 books spent on the next day

ANSWER: 6 BOOKS IN ALL 
6 0
3 years ago
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