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Stella [2.4K]
3 years ago
8

Please help with this question.

Mathematics
2 answers:
Akimi4 [234]3 years ago
7 0

Answer:

\frac{y}{8}

Step-by-step explanation:

Given

\frac{x}{y} = \frac{5}{8} ( cross- multiply )

8x = 5y ( divide both sides by 5 )

\frac{8x}{5} = y ( divide both sides by 8 )

\frac{x}{5} = \frac{y}{8}

Lesechka [4]3 years ago
4 0
The answer to your algerbra question is eight over y
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lara31 [8.8K]

Answer:

5.678 liters in 1.5 gallons and 4.542 for 1.2 gallons in liters

7 0
3 years ago
Read 2 more answers
Find any points of discontinuity for the rational function... y=x-3/x^2-3x-10
vlabodo [156]

Answer:

x = -2 or 5

Step-by-step explanation:

y = (x-3)/((x-5)(x+2))

y is undefined when the denominator is zero.

5 0
3 years ago
Solve the system by graphing
Marta_Voda [28]

\left\{\begin{array}{ccc}-2x=2y-4\\2x-y=-5\end{array}\right\\\\2y-4=-2x\ \ \ \ |+4\\2y=-2x+4\ \ \ \ |:2\\y=-x+2\\for\ x=0\to y=-0+2=2\to(0,\ 2)\\for\ x=2\to y=-2+2=0\to(2,\ 0)\\\\2x-y=-5\ \ \ \ |-2x\\-y=-2x-5\ \ \ \ |\cdot(-1)\\y=2x+5\\for\ x=0\to y=2(0)+5=5\to(0,\ 5)\\for\ x=-2\to y=2(-2)+5=1\to(-2,\ 1)\\\\Answer:\ (-1,\ 3)\to\ x=-1,\ y=3

7 0
3 years ago
A survey of 132 students is selected randomly on a large university campus. They are asked if they use a laptop in class to take
ddd [48]

Answer:

For 90% CI = (0.428, 0.572)

For 98% CI = (0.399, 0.601)

The confidence interval (and Margin of error) reduces when 90% confidence level is used compared to when 98% confidence level is used.

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

p+/-z√(p(1-p)/n)

Given that;

Proportion p = 66/132 = 0.50

Number of samples n = 132

Confidence level = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

0.50 +/- 1.645√(0.50(1-0.50)/132)

0.50 +/- 1.645√(0.001893939393)

0.50 +/- 0.071589436011

0.50 +/- 0.072

(0.428, 0.572)

The 90% confidence level estimate of the true population proportion of students who responded "yes" is (0.428, 0.572)

For 90% CI = (0.428, 0.572)

For 98% CI = (0.399, 0.601)

The confidence interval (and Margin of error) reduces when 90% confidence level is used compared to when 98% confidence level is used.

7 0
3 years ago
If the math club collected 17,604 points and gave away 36 shirts, how many points were collected if 82 shirts were given away?
luda_lava [24]
17,604 points/36 shirts=<span>489 points per shirt
</span>82 shirts*489 points=<span>40,098 points</span>
4 0
2 years ago
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