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2 years ago

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Mathematics

2 answers:

Umnica [9.8K]2 years ago

4 0

The answer is 270 , because the problem says 9 Times as the Red Sox , and 30 times 9 equals 270

lbvjy [14]2 years ago

3 0

Y=9r, r=r

9r+r=30
10r=30
r=30/10
r=3(Red Sox)

yankee=9(3)=27

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Janna has three flat plates easy the same size. She stores them in an L shaped drawer as shown so that they fit snuggly inside w

Phantasy [73]

Answer:

258 square centimeters

Step-by-step explanation:

Consider the image attached below.

We can see that the length of each side of L shape is 40 cm and in 2 plates fit in between.

We need to find the are which is not covered by the plates. Let us calculate the area of L shape first.

We can see that it is a square with one fourth of its area missing. So the area of square with side length 40 cm is,

$A_1= 40 \times 40 = 1600 cm^2$ , where ' $A_1$ ' is the area of square.

Now, one fourth of the area is not there in the L shape, so one-fourth of $1600cm^2$ is,

$\frac{1600}{4}= 400 cm^2$

Therefore, the area of L shape drawer is,

$1600-400=1200 cm^2$

Now, we can see that the diameter of each circular plate is, 20 cm. So the radius of circular plate is 10 cm. Let $A_2$ be the area of each circular plate, so,

$A_2= \pi (10)^2=100\pi cm^2$

There are three plates so the total area is,

$A_3= 3\times 100 \pi = 300 \pi cm^2$

$A_3= 300\times 3.14 = 942 cm^2$

Hence, the area not covered by the plates is,

= $1200-942= 258 cm^2$

So, the area not covered by three flat plates is 258 square centimeters.

8 0

2 years ago

Khalid has $30 to take his brother and his friends to the movies. If each ticket costs $4.00, and he must buy tickets for himsel

Pachacha [2.7K]

Answer:

5 friends with money left over

Step-by-step explanation:

30/4=7.5

30-8=22

22/4=5.5

So therefore they can bring 5 friends with money left over

8 0

2 years ago

Read 2 more answers

Each year farmer records the number of pumpkins he sold for 5 weeks. The mean is 782 and the mean absolute deviation is 52. List

BARSIC [14]

Answer:

When we have a mean M and a standard deviation S, the values that are within the mean absolute deviation are all the values in the interval:

[M -S, M + S]

In this case, we have:

M = 782

S = 52

Then the interval is:

[782 - 52, 782 + 52]

[730, 834]

Then any number between 730 and 834 are possible answers to this question, for example, we can choose:

789 and 801

6 0

2 years ago

Select all expressions that are equivalent to 5n-30

mamaluj [8]

Answer: everything EXCEPT 5(n-30)

Step-by-step explanation:

8 0

2 years ago

Represent the set of numbers as decimals on the number line {5 3/10, 5 1/10, 5 and if you answer more than needed thank you

Alina [70]

Answer:

(0.53 > 0.51) both less than 1 while 5 is greater than both

Step-by-step explanation:

$\frac{53}{10} = .53, \frac{51}{10} = .51.$ and 5

the number line has two sides, with the left side for negative numbers while the right side is for positive numbers.

-5 -4 -3 -2 -1 -.53 -.51 0 .51 .53 1 2 3 4 5

By studying the number line above all decimal numbers greater than 0 but less than 1 are from 0, .1, .2,.........,.98, .99, 1.00 which is also the same as 1 because all numbers greater than 1 has an invisible point at its right side like 2., 3. which also means 2, 3 while negative number are all less than 0

7 0

2 years ago

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