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STALIN [3.7K]
3 years ago
7

Please help sorry if it’s a little blurry! I’ll mark brainliest if you tell me why you got that answer.

Mathematics
1 answer:
In-s [12.5K]3 years ago
3 0

Answer:

the answer is c

Step-by-step explanation:

Since jane weighs 126 and is gaining 3 pounds per month that would make the part of the equation that is 126+3m and since Cynthia weighs 134 and is gaining 2 pounds every month that is what makes the 134+2m part of the equation. And since the equation is 134+2m=126+3m then the goal is to find how many months it would take for their weights' to be equal. Sorry that my explaining skills are terrible hopefully I helped a little.  

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A survey was taken of 2000 voters before an election.1650 of the ones surveyed said they would vote for candidate A.What percent
antiseptic1488 [7]
Total of 2000 voters......1650 said they would vote for candidate A

the percent who voted for candidate A is : 1650/2000 = 0.825
multiply that by 100 to get ur percent....0.825 * 100 = 82.5% <==
6 0
3 years ago
An unfair coin has a probability of coming up heads of 0.65. The coin is flipped 50 times. What is the probability it will come
Lady bird [3.3K]

Answer: the probability it will come up heads 25 or fewer times is 0.019

Step-by-step explanation:

Given that;

n = 50

p = 0.65

so, q = 1 - p = 0.35

np = 50 × 0.65 = 32.5 ≥ 10

nq = 50 × 0.35 = 17.5 ≥ 10

so, we need to use Normal Approximation for the Binomial Distribution

μ = np = 50 × 0.65 = 32.5

σ = √(npq) = √( 50 × 0.65 × 0.35 ) = 3.3726

now, the probability that it will come up heads 25 or few times will be;

⇒ P( x≤25)

{using continuity correction}

⇒ P[ z < (25.5 - 32.5)/3.3726 ]

⇒ P[ z < -2.0755 ]

using z-table

= 0.01923 ≈ 0.019  { 3 decimal places}

Therefore the probability it will come up heads 25 or fewer times is 0.019

4 0
3 years ago
Shaun had a collection of 840 matchbox vehicles. Of these vehicles, 15% are four-wheelers and 30% are convertibles. The rest are
lakkis [162]

Answer:

<h2>462</h2>

Step-by-step explanation:

15% of 840 is 126

30% of 840 is 252

 252

<u>+  126 </u>

<em> 378</em>

<em></em>

840 - 378 = <em>462</em>

or

--------------------------------------------------------------------------------------------------------------

55% of 840 is...

<em>462</em>

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<em>Hope this helps! <3</em>

5 0
3 years ago
Read 2 more answers
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gtnhenbr [62]

|x| > 10

x < - 10 or x > 10

The plot is open dots on -10 and 10 and shading to the left of -10 and to the right of 10.

Answer is the third choice.

8 0
4 years ago
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Svetradugi [14.3K]

Answer:

Se supone que hay una foto?

Step-by-step explanation:

7 0
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