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3 years ago

12

PLS ANSWER ASAP I WILL MAKE YOU BRAINLIEST ( Number 10.)

2 answers:

OLEGan [10]3 years ago

6 0

Answer:

x=160°

since the sum of angles of the shape measures 540°

by summing up the values, we have

3x=480 divide both sides by 3

x=160°

Alecsey [184]3 years ago

4 0

Answer:

<h2>160°</h2><h2>I hope i am not too late </h2><h2 />

Step-by-step explanation:

$Sum\:of\:angles\: = 540\\\\\frac{1}{2}x +\frac{1}{2} x +(x-15)+(x-25)+100=540\\\\=\frac{1}{2}x+\frac{1}{2}x+x-15+x-25+100=540\\\\Group\: like \:terms\\\frac{1}{2}x+\frac{1}{2}x+x+x-15-25+100=540\\\\Add\:similar\:elements \::\frac{1}{2}x+\frac{1}{2}x=2\times\frac{1}{2}x\\2\times\frac{1}{2}x+x+x-15-25+100=540\\\\Simplify\\x+2x-15-25+100=540\\Simplify\\3x +60 = 540\\\\3x = 540-60\\3x = 480\\Divide \:both\:sides\:of\:the\:equation \:by\:3\\\\\frac{3x}{3} = \frac{480}{3}\\ x =160$

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An ant population starts at 1200 for a certain colony. As each month goes by in the winter, 6.5% of the population dies off. How

Nitella [24]

Answer:

There will be 916 ants alive after 4 months.

Step-by-step explanation:

Step 1

Let's change the percentage to a decimal by dividing by a 100.

6.5% / 100 = .065

Step 2

So, for the first month we will multiply the initial amount of ants by .065 and this will give us the number of ants that die.

1200 * .065 = 78

This means that after the first month, 1200 - 78 = 1122 ants will be alive.

Step 3

Now for the second month: 1122 * .065 = 72.93 (rounded to 73)

1122 - 73 = 1049 ants will be alive

Step 4

For the third month 1049 * .065 = 68.185 (rounded to 68)

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Step 5

For the fourth month 981 * .065 = 63.765 (rounded to 64)

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Hope this helps!

5 0

2 years ago

Read 2 more answers

6 is what percentage of 10?

yaroslaw [1]

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Step-by-step explanation: Your welcome!

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3 years ago

Read 2 more answers

Question: Solve it using the proportion method.

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60% of what number is 348?

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2 years ago

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ahrayia [7]

Answer:

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Step-by-step explanation:

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$ME=\frac{Upper \ Bound-Lower \ Bound}{2}\\\\=\frac{0.878-0.412}{2}\\\\=0.233$

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