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2 years ago

Please help with this! Show how you got it!!! Will mark brainliest!!

Mathematics

2 answers:

Ghella [55]2 years ago

8 0

Answer:

sum of interior angles of octagon is 1080 degrees

From figure ,

136 + 132 + 129 + 116 + 158 + 141 + 124 + x = 1080

so, x = 1080 - 936

= 144

Step-by-step explanation: Simply add the angles and substract the sum from 1080 which is the sum of interior angles of octagon

Leni [432]2 years ago

5 0

Answer:

144 degrees.

Step-by-step explanation:

There are 8 sides to this polygon so the total internal of

angles = 180( 8 - 2)

= 1080

Adding up the 7 given angle we get 936

So x = 1080 - 936

= 144.

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Kira, goran, & joe sent a total of 90 text messages during the weekend. Goran sent 5 fewer messages than Kira. Joe sent 3 ti

MissTica

Answer:

Kira sent 19 text messages, Goran sent 14 text messages and Joe sent 57 text messages.

Step-by-step explanation:

Let be "k" the number of text messages that Kira sent during the weekend, "g" the number of text messages that Gora sent during the weekend and "j" the number of text messages that Joe sent during the weekend.

We know know that they sent a total of 90 text messages then:

$k+g+j=90$

Goran sent 5 fewer messages than Kira. This is:

$g=k-5$

And Joe sent 3 times as many messages as Kira. Then:

$j=3k$

The steps to solve this are:

- Substitute the second equation and the third equatio into the first equation and then solve for "k":

$k+(k-5)+(3k)=90\\\\5k-5=90\\\\5k=90+5\\\\k=\frac{95}{5}\\\\k=19$

- Substitute this value into the second equation to find "g":

$g=19-5=14$

- Substitute the value of "k" into the third equation to find "j":

$j=3(19)=57$

4 0

3 years ago

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AysviL [449]

Answer:

Step-by-step explanation:

2/3 ÷ 1/3

=2/3 × 3/1 (recipracol)

=6/3

7 0

2 years ago

Read 2 more answers

Which is another way to write 42+63?

eduard

Forty two plus sixty three that's your answer

7 0

2 years ago

At Sunday’s Best Ice Cream in New Orleans, the price of Ice Cream was $4.00 for a large sundae. Due to the holidays, they are de

dimulka [17.4K]

the answer is $3.88

Step-by-step explanation:

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2 years ago

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aksik [14]

Answer:

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Step-by-step explanation:

because there are 2 blue marbles

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2 years ago