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Zanzabum
2 years ago
12

Brian scored 1/10 of the points for his basketball team in the state championship game. Joe scored 1/4 of the points. Together t

hey scored 21 points. Write an equation to represent the situation. What was the total number of points the team scored?
Mathematics
2 answers:
irga5000 [103]2 years ago
6 0
Lets get common fractions between 1/10 and 1/4, so we now have the fractions 2/20 and 5/20. After we add them we have 7/20. If 35% (7/20) of the points scored is 21, then total points scored is 60. (21 / .35)
salantis [7]2 years ago
4 0

Answer:5

Step-by-step explanation:

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A car uses 1 liter of gas every 12 kilometers.
Alexxandr [17]
The answer is 36,000 because 1 km=1,000 m. Since 1 liter is used every 12 km and you are finding out how many m you will go, you change the km to m and you will multiply it by 3.

12,000x3=36,000 m
4 0
2 years ago
Read 2 more answers
41 packages are randomly selected from packages received by a parcel service. the sample has a mean weight of 20.6 pounds and a
lina2011 [118]
Using normal distribution \alpha = 1-0.95=0.05
critical probability p^{*} = 1 -  \frac{ \alpha }{2}
critical value for the critical probability is CV = 1.96
standard error SE =  \frac{3.2}{ \sqrt{41} } = 0.5
margin of error = CV*SE = 1.96 * 0.5 = 0.98
95% confidence interval is between μ + 0.98 and <span>μ - 0.98, which is (19.62, 21.58)</span>
6 0
2 years ago
A teacher is interested in performing a hypothesis test to compare the mean math score of the girls and the mean math score of t
tamaranim1 [39]

Answer:

d. Two-sample t-test. There is no natural pairing between the two populations.

Step-by-step explanation:

A two-sample t - test is a test performed on the data of two random samples, each independently obtained from a different given population. The purpose of the test is to determine whether the difference between these two populations is statistically significant.

Independent samples are samples that do not affect one another. The mean math scores of the samples of boys and girls do not affect each other. They are independent samples, hence the correct test procedure is two - sample t - test

8 0
2 years ago
Your neighbor has a square shaped pool with side lengths of 3a5 what is the area of the pool
Anvisha [2.4K]

If a square-shaped pool with side lengths are 3a^5 then find the area of the pool

solution:

A = (3a^5) x (3a^5)

   = 9a^5+5

   = 9a^10

The area of the square-shaped pool are 9a^10 based on the given side length which is 3a^5

7 0
2 years ago
Read 2 more answers
The right arrow symbol used to show the transition from a point to its image after a transformation is not contained within the
Bumek [7]

Given:

Vertices of triangle ABC are A (1,4), B(3,−2) and C(4,2).

Triangle ABC reflected over the x-axis to get the triangle A'B'C'.

To find:

The coordinates of the image A'B'C'.

Solution:

If a figure reflected over the x-axis, then rule of transformation is

(x,y)\to (x,-y)

Now, using this rule, we get

A(1,4)\to A'(1,-4)

B(3,-2)\to B'(3,2)

C(4,2)\to C'(4,-2)

Therefore, the coordinates of the image  A'B'C' after a reflection over the x-axis are A'(1,-4), B'(3,2) and C'(4,-2).

7 0
2 years ago
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