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madam [21]
4 years ago
10

The equal sign is confusing me ? Do I combine then solve or just combine

Mathematics
2 answers:
Crank4 years ago
8 0
I would combine then solve.
Dahasolnce [82]4 years ago
8 0
Yes you have to writw the letters on one side amd numbers to the other side always changing signs for example

2X+3X-4=6X+1

2X+3X(-6X)=1+(4)
5X-6X=5
-X=5
X=-5
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What is the actual area of the plot of land ? Write the area in square feet
AlekseyPX
The area is 645504 square feet
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3 years ago
Brianna typically sells candy bars for $4.70. During a sale she prices them at $3.30. What is the approximate percent discount o
Elena-2011 [213]

Answer:

30%

Step-by-step explanation:

One simple way of finding out discounts is to simplify our answer by starting with 10% and subtracting from that.

If the original price were to have a 10% discount, it would be 4.70/10 for .47 per 10% off.

10% gives us 4.23, so let's take another 10% off by doing 4.23-.47, which is equal to 3.76. While lower, it's not our answer so lets do another 10%

3.76-4.7 = $3.29

With a total of 3 10%'s taken off, or in this case, 30% off, we can conclude that the discounted prices of $3.29 is 30% of the original price.

4 0
2 years ago
Read 2 more answers
Help needed! (will mark as brainliest)
Aloiza [94]

Answer:

it is the 3rd option

Step-by-step explanation:

4 0
3 years ago
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Americans receive an average of 20 Christmas cards each year. Suppose the number of Christmas cards is normally distributed with
soldier1979 [14.2K]

The distribution of X is X ~ N (20 , 6) and the probability that this American will receive no more than 24 Christmas cards this year is 0.7486.

<h3>Probability</h3>

a. Distribution

X ~ N (20 , 6)

b. P(x ≤24)

= P[(x - μ ) / σ  (24 - 20) / 6]

= P(z  ≤0.67)

=  0.74857

=0.7486

Hence:

Probability = 0.7486

c. P(21 < x < 26)

= P[(21 - 26)/ 6) < (x - μ  ) / σ   < (24 - 20) / 6) ]

= P(-0.83 < z < 0.67)

= P(z < 0.67) - P(z < -0.)

=  0.74857- 0.2033

= 0.54527

Hence:

Probability =0.54527

d. Using standard normal table ,

P(Z < z) = 66%

P(Z < 0.50) = 0.66

z = 0.50

Using z-score formula,

x = z×  σ +  μ

x = 0.50 × 6 + 20 = 23

23 Christmas cards

Therefore the distribution of X is X ~ N (20 , 6) and the probability that this American will receive no more than 24 Christmas cards this year is 0.7486.

Learn more about probability here:brainly.com/question/24756209

#SPJ1

8 0
2 years ago
Seth can also get dropped off at Bus Stop #2, which is closer to his school.
ipn [44]

Answer: bus stop #2, by 6.5 minutes

Step-by-step explanation: Took the quiz on edge2020

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3 years ago
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