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3 years ago

I need help with number 2 and 3 I can't get this wrong and explain !!!!

Mathematics

2 answers:

mr_godi [17]3 years ago

7 0

Because on number two there is a right angle and a part of it is 66 you subtract 66 from 90 and then divide that by 31 and subtract 7. Hope that helped a little

Harlamova29_29 [7]3 years ago

3 0

2.) If the degree you are looking for is the angel, the answer would be 24.
31x-7+66=90
31x+59=90
-59 -59
31x=31 (divide that by each other)
and get 1. Plug in 1 to x and you get 24. 66+24 = 90

3.) 65x-12=43x+10 (Set them equal to each other since they will be the same measurement because of vertical angels)
65x-12=43x+10
-43x -43x
22x-12=10
+12 +12
22x=22 (divide and you get 1)
Plug those in and you get 35 degrees for your answer to number 3 :)

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Answer:

Step-by-step explanation:

step 1.
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Step 2.

8 + 10 = 18

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2 years ago

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Zielflug [23.3K]

Answer:

$2\frac{2}{5} + 2\frac{5}{8} \simeq 5$

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Step-by-step explanation:

Mixed fraction $a\frac{b}{c}$ can be converted into like or unlike fractions.

Here, $a\frac{b}{c} = \frac{ac +b}{b}$

So, convert all the given fractions as follows:

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$2\frac{2}{7} = \frac{2(7) +2}{7} = \frac{16}{7} =2.4$

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$2\frac{1}{10} = \frac{2(10) + 1}{10} = \frac{21}{10} =2.1$

$2\frac{5}{8} = \frac{2(8) +5}{8} = \frac{21}{8} =2.6$

Here, No Two fractions on addition gives a sum greater than 5.

But an approximate sum of 5 is given by adding 2.4 + 2.6 = 5

⇒ $2\frac{2}{5} + 2\frac{5}{8} \simeq 5$

or ⇒ $2\frac{2}{7} + 2\frac{5}{8} \simeq 5$

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Step-by-step explanation:

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