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leonid [27]
2 years ago
12

Which number line model represents the expression -2+ (- 7/2)

Mathematics
2 answers:
olga55 [171]2 years ago
8 0

Answer: -5.5

Step-by-step explanation:

Ostrovityanka [42]2 years ago
4 0

(; -2= 7/2

-5+ 7 =12

12/2=5

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The product of two rational numbers is -28/75. If one of the numbers is 14/25, find the other
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Answer:

-3/2

Step-by-step explanation:

Let x be the missing number

  • x*\frac{14}{25} = \frac{-28}{75}
  • x = \frac{-28}{75} * \frac{25}{14}          inverse 14/25 since it's a fraction
  • x = \frac{-28*25}{75*14}
  • x = \frac{-4*7*25}{25*3*7*2}          write 75 as 25*3 and -28 as -4*7 to simplify
  • x = \frac{-4}{6}            -4 is left on the top and 6 = 3*2
  • x = \frac{-3*2}{2*2}
  • x=   \frac{-3}{2}      
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2 years ago
The owner of a sandwich shop researches the cost of buying different numbers of pounds of sandwich meat. The owner creates a sca
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Step-by-step explanation:

3 0
2 years ago
Stephen spent $4 on milk, $6 on eggs, and $11 on cereal. He wrote the ratio 6/11 to describe some of his purchases. Explain why
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Attached the solution and work.

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2 years ago
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Shanti wrote the predicted values for a data set using the line of best fit y = 2.55x – 3.15. She computed two of the residual v
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<span>Residual value is the difference between the observed value of the dependent variable (y) and the predicted value (ŷ) in a data set.

i.e. Residual value = given value - predicted value

From the table, the residual value corresponding to a has 4.1 as the given value and 4.5 as the predicted value.
Therefore, a = 4.1 - 4.5 = -0.4

Similarly, </span><span>the residual value corresponding to b has 7.2 as the given value and 7.05 as the predicted value.
Therefore, b = 7.2 - 7.05 = 0.15
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Therefore, a = -0.4 and b = 0.15
4 0
2 years ago
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students at river view middle school are allowed to wear two different colors of uniform shirts. A survey of students at the sch
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Answer:

18 students are likely to be wearing red

Step-by-step explanation:

From the question, we know a student either wears red , or blue, with the probability of a student wearing red is 3 times more probable than wearing white.

So, let’s say out of the 24 students, x of them are wearing white. What this practically mean is that 3 * x = 3x of the students would be expected to be wearing red.

Now, adding the number of people wearing red and white together in terms of x, we have x + 3x = 4x

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The number wearing red probably is 3 * x = 3 * 6 = 18 people

5 0
2 years ago
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