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denis23 [38]
3 years ago
9

What is the value of x in the equation 4x + 8y =40, when y=0.8

Mathematics
1 answer:
Naily [24]3 years ago
3 0

Answer:

x= 8.4

Step-by-step explanation:

y=0.8

4x + 8y =40

4x + ( 8 x 0.8) = 40

4x + (6.4)  =40

4x = 40 - 6.4

4x = 33.6

x = 8.4

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A response variable you are trying to measure once you've done the experiment.

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10 people and 10 weeks don't change. Those two are not a choice for an answer. Now you come to the crunch of the question. Is it the sunglasses you are trying to measure or is it what your eyes have done because you were wearing sun glasses.

So we need an answer. If you say sun glasses, how did you measure what they did. THAT's the answer. The answer is not the sunglasses.

8 0
3 years ago
Please help me answer this question.
charle [14.2K]
\bf \textit{hmm how much is 0.25 of the pizzas?}\quad 0.25\cdot 40\implies \boxed{10}\leftarrow  Ronnie
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\textit{we know Mack stacked only \boxed{9}}
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\textit{what is the 35\% of 40?}\quad \left(\frac{35}{100}  \right)\cdot 40\implies \boxed{14}\leftarrow Kim
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\textit{how many remain?}\quad 40-(10+9+14)\implies \boxed{7}\leftarrow Ada

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4 0
3 years ago
Help me please
blsea [12.9K]

Answer:

1 is biased, 2 isn't, 3 is biased, 4 isnt

Step-by-step explanation:

If you ask a question to people in a group who are already clearly for a certain topic then it is biased. For survey to not be biased, the people need to be chosen at random. Ask students what their favorite class is, or ask flight attendants where their favorite destination to travel to is. Dont use a group who has any relation to the survey at hand. Asking band students about funding for band is biased, as well as asking people who are at a SOCCER GAME what their favorite sport is.

5 0
3 years ago
For the function F(x) = 1/x+2, which of these could be a value of F(x) when xis
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Answer:

B 2

Step-by-step explanation:

The computation of the value of f(x) in the case when x = 2 is shown below

As per the question, following function is given

F(x) = (1 ÷ x) + 2

Based on this, the x = 2

Now put the x value in the above equation

So,

= (1 ÷ 2) + 2

= (1 + 4) ÷ 2

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= 2.5

Hence the closet number is 2

Therefore the value of f(x) in the case when x = 2 is 2

Hence, the correct option is b.

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3 years ago
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Which of the following are solutions to equation below.(check all that apply)
swat32
That would be C and  D.
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3 years ago
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