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Semmy [17]
3 years ago
12

PLEASE ANSWER THIS!! 15 POINTS!

}{3}" alt="\frac{2}{3}" align="absmiddle" class="latex-formula"> (2) + \frac{1}{2}
Mathematics
2 answers:
nasty-shy [4]3 years ago
5 0

Answer:

1 5/6

Explanation:

-When quantifying numbers you must follow P.E.M.D.A.S.

Parentheses

Exponents

Multiplication/Division

Addition/Subtraction

2/3 * 2 is the same as 2/3 * 2/1

Now you have 4/3 + 1/2

- You must find the common denominator by Multiplying them together

Then you add

-hope this helps!

dolphi86 [110]3 years ago
4 0

Answer:

1 5/6

Step-by-step explanation:

Do 2/3 x 2/1 because 2/1 = 2 and you get 1 1/3. Make 1 1/3 into 1 2/6 (1/3 = 2/6) and add 3/6 (1/2 = 3/6)

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Kim also has a sink that is shaped like a half-sphere. The sink has a volume of 4000/3 π in3. One day, her sink clogged. She has
mestny [16]

Answer:

A. 44 times

B. 16 times.

Step-by-step explanation:

We know the volume of the sink, now we need to find the volume of the cup(s) she's using to empty it out. to find out how many scoops she'll have to do.  

We'll assume she can actually empty it all, even if it's unlikely he can scoop the last 5%-10% of it due to the shapes/sizes of the sink and the cup. We'll also assume she completely fills the cup (which is impossible due to angles).

The volume of the sink is 4000/3 π cubic inches

a - Conical cup, diameter 6 inches (radius = 3), height: 10 inches.

We remember the volume of a cone is found using this formula:

V = (π r² h) / 3

So, we have:

V = (π * 3²  * 10) / 3 = 90 π  / 3

So, how many times does Kim has to scoop (S):

S = \frac{4000 \pi /3 }{90 \pi /3 } = 44.44

Of course, she can't scoop 0.44 times... Normally we would round it up,  <u>but the question says to round it to the nearest whole number.</u>

So, Kim will have to scoop 44 times with this first cup.

b - Conical cup, diameter 10 inches (radius = 5), height: 10 inches.

We remember the volume of a cone is found using this formula:

V = (π r² h) / 3

So, we have:

V = (π * 5²  * 10) / 3 = 250 π  / 3

So, how many times does Kim has to scoop (S):

S = \frac{4000 \pi /3 }{250 \pi /3 } = 16

So, Kim will have to scoop 16 times with this second cup.

4 0
3 years ago
A spinner with six sections labeled A through F is spun. What is the probability of spinning the letter labled D?
choli [55]

Answer:

1/6

Step-by-step explanation:

I guess we are to assume each is equally likely.  There a 6 possible outcomes and one D so the answer is 1/6

5 0
3 years ago
Read 2 more answers
for each month of a year Selena saving an extra $100 from her paycheck by the end of the year she had saved 1800 write and solve
maxonik [38]
100+1800 would be good
8 0
3 years ago
Read 2 more answers
Kamila buys a notebook for $1.59 and pens for $0.29 each. She spends $5.07.
emmasim [6.3K]

Answer:

12 pens

Step-by-step explanation:

Let the variable that can be used to determine the number of pens that Kamila bought be represented by n.

Price of a notebook = $1.59

Price a pen = $0.29

Total amount spent = $5.07

But,

1.59 + 0.29 n = 5.07

So that,

0.29 n = 5.07 - 1.59

0.29 n  = 3.48

n = \frac{3.48}{0.29}

  = 12

Therefore, Kamila bought 12 pens.

6 0
3 years ago
A class has 4 boys and 10 girls. What is the ratio in the simplest form that compares a number of boys to a total number of stud
sergejj [24]

Answer:

4 to 14 should be the right answer

6 0
2 years ago
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