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3 years ago

I just need an expiation for my corrections

Mathematics

2 answers:

devlian [24]3 years ago

6 0

You could simply 21 and 28 both by 7 and when you do that you would get 3 and 4.

since the ratio is Jeanne to Jakes tickets it would be 3:4 or 3/4

final answer should be A

Ber [7]3 years ago

3 0

Answer:

You compared the Jeanne to Jake in the correct order 21/28. Now you need to simplify your fraction. What is the largest number, also known as the the highest common denominator, you can divide both 21 and 28 by? Once you figure that out, divide both 21 and 28 by that highest common denominator and you will have your answer.

Step-by-step explanation:

21/1=21 28/1=8

21/3=7 28/2=14

21/7=3 28/4=7

28/7=4

What is the largest common number in both columns? That is your largest common denominator.

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Please help me with a math question

tankabanditka [31]

Idk i have the same problem ugh i hate geometry

7 0

4 years ago

What is the solution to log2 (9x)- log2^3=3?

Svet_ta [14]

Answer:

x = $\frac{8}{3}$

Step-by-step explanation:

Using the rule of logarithms

log x - log y = log ( $\frac{x}{y}$ )

$log_{b}$ x = n ⇒ x = $b^{n}$

Given

$log_{2}$ (9x) - $log_{2}$ 3 = 3

$log_{2}$ ( $\frac{9x}{3}$ ) = 3

$log_{2}$ 3x = 3

3x = 2³ = 8 ( divide both sides by 3 )

x = $\frac{8}{3}$

3 0

4 years ago

The formula can be used to work outthe cost, in riyals, of hiring a helmet inQatar for a number of days.Kasun wants to hire a bi

Margaret [11]

Answer:

The answer is below

Step-by-step explanation:

a) Cost of hiring the bicycle for 14 days is:

Cost = 65 * 14 days + 44 = 954 riyals

b) The number of days the bicycle is hired is to be the same as the number of days the bicycle is to be hired. Let us assume that the bicycle and helmet is to be hired for x days, hence:

Cost of bicycle = 65 * x + 14 = 65x + 44

Cost of helmet = 12.5 * x = 12.5x

Total cost = 65x + 44 + 12.5x = 77.5x + 44

Since 750 riyals is available, hence:

750 = 77.5x + 44

77.5x = 706

x = 9.11

Therefore the maximum number of days is 11. The total cost for 11 days is:

Total cost = 77.5(9) + 44 = 741.5 riyals

Money not spent = 750 riyals - 741.5 riyals = 8.5 riyals

6 0

3 years ago

Find EF if EM= x^2+25 and MF = 10x

N76 [4]

Answer:

x^2 + 10x + 25; (x + 5)^2.

Step-by-step explanation:

When we're talking about line segments, we just have to find the sum of the two parts of the line segment to find the value of the whole. In this case, we have x^2 + 25, and 10x. So, we add them together.

x^2 + 25 + 10x

= x^2 + 10x + 25

Since this can be immediately factored into (x + 5)^2, you have your answer.

Hope this helps!

7 0

3 years ago

The weights of steers in a herd are distributed normally. the standard deviation is 200 lbs and the mean steer weight is 1300 lb

Olin [163]

<span>Given a mean = 1300 and a Ď = 200, we can calculate that the lower bound of 1000 is (1000 - 1300) / 200 = -1.5 standard deviations below the mean. The upper bound is (1437 - 1300) / 200 = 0.685 standard deviations from the mean. Using the cumulative distribution function, we can calculate that the probability a randomly chosen steer lies on the interval [1000, 1437] is CDF(0.685) - CDF(-1.5) = 0.68652083824480004 p = 0.6865</span>

6 0

4 years ago