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3 years ago

If the sum of seven odd consecutive numbers is 231, find the middle number.

Mathematics

2 answers:

qaws [65]3 years ago

8 0

This is your answer, good luck buddy

andrew-mc [135]3 years ago

3 0

Answer:

Step-by-step explanation:

(1+x) + (3+x) + (5+x) + (7+x) + (9+x) + (11+x) + (13+x) = 231

7x + 49 = 231

7x = 231 - 49

7x = 182

x = 182/7

x = 26

To find the middle number;

7 + x

= 7+26

= 33

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Help pls is geometry

Burka [1]

Answer:

C) 16, 6

Step-by-step explanation:

Set AB and DC equal to eachother. 4x = x + 12.
Subtract x from both sides. 3x = 12
Divide by 3 to get x alone. x = 4
Plug this x value in the equation for AB. 4•(4) = 16
We know the AD equals 6, so that will be one of the values and we now know that AB equals 16.

7 0

3 years ago

How do you find the missing height of a triangle?

g100num [7]

Answer:

Use the Pythagorean theorem

Step-by-step explanation:

The pythagorean theorem is $a^{2} +b^{2} =c^{2}$ where a is a height, b is a height, and c is the hypotenuse, which is the longest side of a triangle. For example, if the triangle has two side with lengths of three and four we would put them into the equation to get:

$3^{2} +4^{2} =c^{2}$

Simplify the equation to get:

$9+16=c^2$

Add 16 and 9 to get 25 and take the square root of both sides:

$\sqrt{25} =c$

The sqrt of 25 is 5. Therefore, the length of the hypotenuse, or c, is 5.

8 0

3 years ago

Read 2 more answers

What is the answer on each of three days Derrick rose 6.45 km to school 150 meters to the library and than 500 meters back home

wolverine [178]

150=0.15
500=0.5
6.45
0.15
+0.5
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7.10

5 0

3 years ago

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Diane works at a gardening store, and today she is helping assemble gas trimmers to be sold. An employee from an earlier shift a

Oxana [17]

The linear function for the number of trimmers assembled is:

y = 7 + 4x.

--------------------------------

A linear function has the following format:

$y = ax + b$

In which:

a is the rate of change.
b is the fixed amount.

--------------------------------

In an earlier shift, 7 trimmers had already been produced, thus 7 is the fixed amount, that is, $b = 7$ .
Diane assembles 4 trimmers per hour, thus the rate of change is 4, that is, $a = 4$
The <u>amount of trimmers y produced after x hours</u> is given by: