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2 years ago

The name of every student taking Algebra was listed alphabetically and numbered. The teacher uses

Mathematics

1 answer:

baherus [9]2 years ago

4 0

Answer:

The number will be -63

Step-by-step explanation:

Here, we want to give the number of the chosen 25th student

We can see that the numbering follows an arithmetic sequence where a = 9 and d which is the common difference is (6-9) = -3

Mathematically, we can calculate the nth term using the equation below;

Tn = a + (n-1)d

in this case, n = 25, a = 9 and d = -3

So we have

Tn = 9 + (25-1)-3

Tn = 9 -3(24)

Tn = 9-72

Tn = -63

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Answer:

Step-by-step explanation:

Given that he has sold 40% then he still has to sell (100 - 40)% = 60%

60% of 70

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3 years ago

Emily says that a square is always a rectangle. Jenna says a rectangle is always a square. Who is correct and why are they corre

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Answer:

Jenna is right

Step-by-step explanation:

Jenna is right because what makes up a square is its four sides. When calculating the area of a rectangle you use the same formula as you would for a square. A rectangle is just an elongated square.

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2 years ago

2) This is a line segment between the center and a point on the circle or sphere.

Dima020 [189]

Answer:

Radius

Step-by-step explanation:

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3 years ago

On the first day of June, there were about 17.71 h of daylight in a city. Five months later, there were about 5.30 h of daylig

Andru [333]

Answer:

Percentage increases and decreases, are found by setting the problem up proportionally.

You are trying to find what percentage of 17.37 is 8.30 first.

so What %/100 = 8.30/17.37

Now define a variable:

Let x = What%

x/100 = 8.30/17.37

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x = 830/17.37

x ≈ 47.78

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The percentage decrease is approximately 52.22%

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3 years ago

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Zigmanuir [339]

Answer:

Step-by-step explanation:

The formula for volume of a box is length×width×height = volume

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3 years ago