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postnew [5]
3 years ago
11

Please help picture included will give brainliest

Mathematics
2 answers:
BaLLatris [955]3 years ago
5 0

a = 4x/t -p

add p to each side

a+p= 4x/t

multiply each side by t

t(a+p) =4x

divide each side by 4

t/4 * (a+p) =x


Leto [7]3 years ago
5 0
A= 4x/t -p
+p
a+p = 4x/t
*t
t(a+p) = 4x
/4
t(a+p)/4 = X (in the first half it's all over 4).
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What is the best prediction of the amount of money earned when the lemonade stand has been open for 9 hours
abruzzese [7]

Answer:  $50

Step-by-step explanation:  Draw a line through the apparent center of the scattered dots. See where that line intersects 9 in the time scale (x-axis numbers) and the dollars earned scale (y-axis numbers)

It could be 50 or 55, but since there are a few more dots below the apparent midline, it may be best to use the lower estimate.

7 0
3 years ago
What addition expression is equivalent to<br> 3-(-7)?
Lesechka [4]

Answer:

3 - (-7)

= 3 + 7.

Step-by-step explanation:

A double negative  is equivalent to a plus.

4 0
3 years ago
Read 2 more answers
1. round the result to 2 decimal places. -0.9x+2.8=4.1
lora16 [44]
1. <span>-0.9x+2.8=4.1
First subtract 2.8 from both sides.
-0.9x = 1.3
Now divide both sides by -0.9.
x = -1.4444..
This can be rounded to -1.44
</span><span>c) -1.44

2. Jordan has 650 pennies. He'll give 85 to his brother and split the rest with his sister.
</span>d) 85+2x=650
5 0
3 years ago
Can you please help me
Karolina [17]

Answer:

214d or (159+55)d

Step-by-step explanation:

150 + 9 = 159

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d = how many days.

5 0
2 years ago
Read 2 more answers
What is the probability a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean
Elena-2011 [213]

Answer:

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

Step-by-step explanation:

The following information is missing:

The standard deviation of population is 100.

We are given the following information in the question:

Population mean, μ = 502

Standard Deviation, σ = 100

Sample size, n  = 90

Standard error =

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Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(test score within 10 points)

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P(492 \leq x \leq 512) = 65.8\%

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

7 0
3 years ago
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