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3 years ago

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

MakcuM [25]3 years ago

7 0

Answer:

m∠A= 52 degrees

Step-by-step explanation:

(Every triangle equals 180 degrees)

First you have to find angle C.

Step 1- Subtract

180-105= 75 *The line is a 180 degree angle

Now that you have the measure for two angles, you subtract.

53+75+x=180

128+x= 180

-128 -128

x=52

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Compare- 6 broken bulbs out of 20 or 7 broken bulbs out of 30

9966 [12]

Answer:

well 6/20 has more absolute value than 7/30

Step-by-step explanation:

also 7/30 is closer to zero

5 0

4 years ago

Think and record

erma4kov [3.2K]

A. 1.42152403
B. Repeating
C. 76/100

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3 years ago

samuel pulls two coins out of his pocket randomly without replacement. if his pocket contains one nickel one dime and one quarte

levacccp [35]

An Easy Way to do this is to write out the sample space.

5 10
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10 5
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25 5
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Then, check which ones, add to over 20
5 25
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Therefore, it's 4/6 or 2/3

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4 years ago

The interior angles of a triangle have measures (2x -5) degrees , (4x -1) degrees , and 30 degrees

N76 [4]

Umm... I really dont get maths in my brain. Dont mind me though :P .
but i can sure tell u a little i know .
4x-1+2x-5+30=180 (sum of interior angles of triangle)
or, 6x+24=180
or, 6x=156
therefore, X=26 degrees
thankyou :D

5 0

3 years ago

There is a mountain with 30 bat caves in a row that contain 340 bats in all. Any 7 caves in a row contain exactly 77 bats. Suppo

Anna007 [38]

Answer:

The 29th cave has 28 bats.

Step-by-step explanation:

It is given that any 7 caves in a row contain 77 bats.

So, out of the 30 caves, let us start counting from the second cave till the 29th cave(counting 28 caves).

7 times 4 gives us 28, which has $77\times4=308$ bats. We have not counted the first and last cave.

Let the number of bats in the last cave be $x$ , then according to the question:

$7x+x=340-308=32$ (First cave has 7 times more bats than the last cave)

Hence, $x=4$ (number of bats in the 30th cave)

Now we shall again count, but this time from the first cave, leaving out the last 2 caves. So the total number of bats in the first 28 caves is 308 and 32 in the last 2 caves.

So, the number of bats in the 29th cave = 32 - 4 = 28

7 0

3 years ago