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IrinaK [193]
3 years ago
14

A quality-control center finds that 2 out of 250 toy trains are defective. How many trains would they expect to be defective in

a batch of 10,000?
A.80

B.40

C.250

D.125
Mathematics
1 answer:
solmaris [256]3 years ago
5 0
Its A. 10,000 divided by 250 is 40. Then multiply 40 by 2 and you get 80

10,000 / 250 = 40 
40 * 2 = 80
80= A.
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The number of students who attended Lincoln Middle School last year was 860. This year, the attendance has increased to 1032 stu
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Answer:

120 %.

Step-by-step explanation:

That is (1032 * 100) / 860 %

= 120 %

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A yearly subscription to the monthly magazine cost $41.40. The regular news stand price is $4.25 per issue. How much is saved pe
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Please explain and answer Part C. I will give 20 points
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Simplify the numerical expression 5.75 - 1/2 (20÷2.5) ÷ 2+6
svet-max [94.6K]

Answer:

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Step-by-step explanation:

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3 years ago
Which two points are on the graph of M(a) = - 3/4a-12?
sertanlavr [38]

Answer:

(-16, 0) and  (0,-12)  are exactly two points on the graph of the given equation.

Step-by-step explanation:

Here, the given expression is : M(a) = -\frac{3}{4} a-12

Here, let M(a)  = b

⇒The equation becomes b = -\frac{3}{4} a-12

Now, check for all the given points for (a,b)

<u>1) FOR (-9,0)</u>

RHS  is  -\frac{3}{4} (-9)-12  =   -5.25 \neq 0

Hence, (-9,0) is NOT on the graph.

<u>2) FOR (-16,0)</u>

Here, LHS = b = 0

andRHS  =   -\frac{3}{4} (-16)-12  = 12-12  = 0

Hence, LHS  =  RHS = 0  So, (-16,0) is  on the graph.

<u>3) FOR (0,12)</u>

Here, LHS = b = 12

RHS  is  -\frac{3}{4} (0)-12  =   -12  \neq 12

Hence, (0,12) is NOT on the graph.

<u>4) FOR (0,-12)</u>

Here, LHS = b = -12

RHS  is  -\frac{3}{4} (0)-12  =   -12

and LHS = RHS = -12

Hence, (0,-12) is  on the graph.

Hence, (-16, 0) and  (0,-12)  are exactly two points on the graph of the given equation.

6 0
3 years ago
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