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LUCKY_DIMON [66]
2 years ago
14

Need help asap i’ll vote brain liest

Mathematics
1 answer:
seropon [69]2 years ago
6 0

Answer:

The answer is y=3x+1

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Solve for x. 3(x-15)=30<br>help!!!!
ankoles [38]

Answer:

3(x - 15) = 30 \\ multiply \: in \: between \: brcket \\ 3x - 45 = 30 \\ 3x = 30 + 45\\ 3x = 75 \\ x =  \frac{75}{3}  = 25 \\ thank \: you

5 0
3 years ago
Read 2 more answers
Two standardized​ tests, a and​ b, use very different scales of scores. the formula upper a equals 40 times upper b plus 50a=40×
Leona [35]
Adding (or subtracting) a constant to every data value adds (or subtracts) the same constant to measures of position such as center,percentiles, max or min.

Its shape and spread such as range, IQR, standard deviation remain unchanged.
When we multiply (or divide) all the data values by any constant, all measures of position (such as the mean, median, and percentiles) and measures of spread (such as the range, the IQR, and the standard deviation) are multiplied (or divided) by that same constant.
Part A:

The lowest score is a measure of location, so both addition and multiplying the lowest score of test B by 40 and adding 50 to the result will affect the lowest score of test A.

Thus, the lowest score of test A is given by 40(21) + 50 = 890

Therefore, the lowest score of test A is 890.



Part B:

The mean score is a measure of location, so both addition and multiplying the mean score of test B by 40 and adding 50 to the result will affect the lowest score of test A.

Thus, the mean score of test A is given by 40(29) + 50 = 1,210

Therefore, the mean score of test A is 890.



Part C:

The standard deviation is a measure of spread, so multiplying the standard deviation of test B by 40 will affect the standard deviation but adding 50 to the result will not affect the standard deviation of test A.

Thus, the standard deviation of test A is given by 40(2) = 80

Therefore, the standard deviation of test A is 80.



Part D

The Q3 score is a measure of location, so both addition and multiplying the Q3 score of test B by 40 and adding 50 to the result will affect the Q3 score of test A.

Thus, the Q3 score of test A is given by 40(28) + 50 = 1,170

Therefore, the Q3 score of test a is 1,170.



Part E:

The median score is a measure of location, so both addition and multiplying the median score of test B by 40 and adding 50 to the result will affect the median score of test A.

Thus, the median score of test A is given by 40(26) + 50 = 1,090

Therefore, the median score of test A is 1,090.



Part F:

The IQR is a measure of spread, so multiplying the IQR of test B by 40 will affect the IQR but adding 50 to the result will not affect the IQR of test A.

Thus, the IQR of test A is given by 40(6) = 240

Therefore, the IQR of test A is 240.
6 0
3 years ago
Find the greatest possible error and the percent error of 6cm
lora16 [44]

Answer:greatest possible error=6.5

Percent area=8.3

Step-by-step explanation:

3 0
3 years ago
Thrifty supply store normally sells candy bars for .59cents
Assoli18 [71]

Answer:

well that is a pretty good deal i might have to go there

Step-by-step explanation:

7 0
3 years ago
What is the distance between points (4,2) (6,-5)
egoroff_w [7]

Answer:

Exact form:

\sqrt{53}

Decimal Form:

7.280109889280518

Step-by-step explanation:

Use the distance formula to determine the distance between 2 points.

Distance = \sqrt{(x_{2} -x_{1}) ^2+(y_{2} -y_{1}) ^2

\sqrt{6-4^2+(-5-2)^2

\sqrt{(2)^2+(-7)^2}

\sqrt{4+49}

\sqrt{53} ≈ 7.280109889280518

5 0
3 years ago
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