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nataly862011 [7]
4 years ago
7

Which of these best describes rt?

Mathematics
1 answer:
olchik [2.2K]4 years ago
3 0

Answer:

uhhhh... i thinks its D or A

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The ratio of girls to boys in a particular classroom is 8: 7. How many boys are in the class if there are 45 students?
Dmitry [639]

9514 1404 393

Answer:

  21

Step-by-step explanation:

Rearranging the given ratio, we can find the ratio of boys to the total.

  boys : (boys +girls) = 7 : (7+8) = 7 : 15

Then the number of boys is ...

  (7/15)(45) = 21

There are 21 boys in the classroom.

8 0
3 years ago
Below is data collected form a random sample of 80 students regarding their elective preference.
trasher [3.6K]

If the entire school has 400 students, then what is a reasonable estimate for the number of students who prefer music

5 0
2 years ago
The table shows revenue R (in millions of dollars) of a company when it spends A (in millions of dollars) in advertising.
Orlov [11]
Advertising is x and revenue is y

(0,2)(2,6)
slope = (6 - 2) / (2 - 0) = 4/2 = 2

y = mx + b
slope(m) = 2
(0,2)...x = 0 and y = 2
now we sub and find b, the y int
2 = 2(0) + b
2 = b

so ur equation is : y = 2x + 2

spends 10 mill on advertising.....so x = 10
y = 2x + 2
y = 2(10) + 2
y = 20 + 2
y = 22.....so the revenue (y) of the company is 22 (million)
7 0
3 years ago
M(−6, 7) is the midpoint of DF¯¯¯¯¯ . The coordinates of point D are (−14, 13) .
Helen [10]
(2, 1) is the answer
4 0
3 years ago
Read 2 more answers
Question about decimals
meriva

Answer:

  • Both are terminating decimals

Step-by-step explanation:

<u>Answer to your questions:</u>

  • First of all, both A and B are correct and both quotients are terminating decimals.
  • To find out if the decimal is terminating or not, multiply the quotient by divisor. If you get exactly the same number as dividend, then it is terminating otherwise it is non-terminating.
  • The fraction may have greater numerator than denominator, in this case the quotient will be greater than one.
  • Now regarding simplification. You would be asked to give an answer rounded to some extend.  One decimal place, two decimal places, 3 significant numbers etc. For the first operation you would get 34.8 (rounded to nearest tenth).
  • Or you may be asked to have a best estimated result. In this case you would round the initial numbers and find results. 205/714 ≈ 0.29

4 0
3 years ago
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