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svetlana [45]
3 years ago
5

What is the value of 15/124•230/30 divided by 230/124

Mathematics
1 answer:
suter [353]3 years ago
3 0
Okay, the first thing to do is to make it so you're multiplying everything instead of dividing by that last fraction. To divide by a fraction, you just multiply by its reciprocal. So then, it's 15/124 x 230/30 x 124/230. After that, let's organize it into one single giant fraction since order of operations allows us to arrange division and multiplication however we want. Then it's 15x230x124 / 124x30x230. Then, you'll notice that the 230s and 124s can both be canceled out, leaving 15/30. After simplifying, your final answer is 1/2.

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An elementary school teacher wants to know if the words in a book are too difficult for her students. She reads the first senten
raketka [301]

Answer:

d.every word in the first sentence of the first page of every chapter.

Step-by-step explanation

  • the sample space means the set of total possible outcomes or ALL possible outcomes.
  • so here, the situation is about the teacher reading a sentence.
  • the favorable outcome is the set which has all the words that the students would not know from all the words read  by the teacher or simply from the sample space.
  • since the teacher reads  the first sentence on the first page in every chapter , all the words in that sentence will be sample in this situation.
7 0
3 years ago
The angle looking up at the sun is 70°. A flagpole casts a shadow of 15 ft. Draw a diagram and find the height of the flagpole
dangina [55]

Answer:

The length of the flagpole be 41.2 ft .

Option (A) is correct .

Step-by-step explanation:

As given

The angle looking up at the sun is 70°.

A flagpole casts a shadow of 15 ft .

Now by using the trignometric identity .

tan \theta = \frac{Perpendicular}{Base}

\ theta = 70^{\circ}

tan\ 70^{\circ} = \frac{AB}{BC}

BC = 15 ft

tan 70° = 2.75 (Approx)

2.75 = \frac{AB}{15}

AB = 2.75 × 15

     = 41.2 ft

Therefore the length of the flagpole be 41.2 ft .

Option (A) is correct .

5 0
3 years ago
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There are 36 feet of ribbon in
Dafna11 [192]

Answer:

63 feet of ribbon

Step-by-step explanation:

First, you find the unit rate by dividing 36 by 12. That gets you 3 feet of ribbon per package. Since you need to find how many feet of ribbon are in 21 packages, you multiply 21 and 3. 21x3= 63

5 0
3 years ago
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There was a triangle that had sides that were 5. 6, 6. 5, and 8.7 inches in length If Rochelle wanted to create a larger triangl
r-ruslan [8.4K]

Answer:

The answer is: 11.2, 13 and 17.4

Step-by-step explanation:

The scale factor of 2 means that we will build a triangle with sides of double lenght than original one.

So sides will be

5.6\times 2=11.2

6.5\times 2=13

8.7\times 2=17.4

6 0
3 years ago
QUICKKKKKK 12 points !!!
Rus_ich [418]

Answer:

y = 3x + 5

Step-by-step explanation:

First start  at your y intercept (5) and use the rise to run ratio (rise 3, run 1) and there is a point on every single one.

1/3 wouldn't work because you rise 1 and go right 3 and that does not match any of the points

Using the two points first gives us a slope of 3

(1, 8) (2, 11)

m(slope) = (y2 - y1)/(x2 - x1)

m = (11 - 8)/(2 - 1)

m = 3/1

m = 3

We also know that 8 cannot be the intercept being as it is the point at x = 1. Therefore, we know that y = 3x + 5 must be the only possible answer.

6 0
3 years ago
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