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3 years ago

A number divided by five is at least four

Mathematics

2 answers:

Mrrafil [7]3 years ago

7 0

Answer: 20

Step-by-step explanation: because you can divide 20 divided by 5 equals 4

tresset_1 [31]3 years ago

7 0

Answer:

x/5≥4

x≥20

Step-by-step explanation:

Multiply both sides by 5.

5x/5≥4*5

Simplify

x≥20

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In Mrs. Marsh's algebra class, 30 of the 36 students took the Chapter 4 test, and their mean score was $72 \%$. The next day the

hammer [34]

The new class mean of the given information in percent = 73%

<h3>What is algebra?</h3>

One of the many branches of mathematics is algebra. Algebra, which is a common thread throughout practically all of mathematics, is broadly defined as the study of mathematical symbols and the rules for manipulating these symbols in formulas.

<h3>According to the information :</h3>

A total of 2160 points would be earned if 30 students obtained an average grade of 72.

= 30 x 72

= 2160

If six students had an average of 78, their total points would be 6 x 78, or 468.

= 6 x 78

= 468

points are the result of adding the points from both groups.

2160 + 468

= 2628

An average of 73 is obtained by dividing 2628 by 36.

It represents a 73% proportion.

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I understand that the question you are looking for is:

In Mrs. Marsh's algebra class, 30 of the 36 students took the Chapter 4 test, and their mean score was $72 \%$. The next day the other six students took the test and their mean score was $78 \%$. What is the new class mean? Express your answer as a percent.

7 0

2 years ago

Answer questions a) and b)

Mariulka [41]

Answer:

$x\hookrightarrow -1\hookrightarrow 0\hookrightarrow 1\hookrightarrow 2\hookrightarrow 3\hookrightarrow 4\hookrightarrow 5$

$y\hookrightarrow 5\hookrightarrow 0\hookrightarrow -3\hookrightarrow -4\hookrightarrow -3\hookrightarrow 0\hookrightarrow 5$

The curve (B) matches the graph of y=x²-4x.

$----------\\Hope \ it\;helps$

4 0

3 years ago

A paddle boat can move at a speed of 2 km/h in still water. The boat is paddled 16 km downstream in a river in the same time it

MaRussiya [10]

<span>going downstream -

t = 14/(2 + v)

going upstream -

t = 7/(2 - v)

14/(2 + v) = 7/(2 - v)

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v = 2/3km/h</span><span>
</span>

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3 years ago

It is advertised that the average braking distance for a small car traveling at 65 miles per hour equals 122 feet. A transportat

madreJ [45]

Complete Question

The complete question is shown on the first uploaded image

Answer:

the null hypothesis is $H_o : \mu = 122$