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Brrunno [24]
3 years ago
13

Solve for 2/3(9 - 6) + 40 and 7/8 - (-1/10) + (-3/5)

Mathematics
1 answer:
masha68 [24]3 years ago
4 0

Answer:

first one is 42

second one is 3/8

Step-by-step explanation:

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What were the lengths of the legs of a right triangle in which measures 19 degrees and the hypotenuses 15 units long
Otrada [13]

Answer:



The legs of a triangle with a hypotenuse that measures 15 units long have lengths that are equal to 15 times the sine or cosine of the given angle.

                     leg 1 = (15 units) x (cos 19) = 14.18 units

                     leg 2 = (15 units) x (sin 19) = 4.88 units

The lengths of the legs are 14.18 units and 4.88 units.  

8 0
3 years ago
Given that the two triangles are similar, solve for x if AU = 20x + 108, UB = 273, BC = 703, UV = 444, AV = 372 and AC = 589. Yo
Arlecino [84]

If two triangles are similar then the corresponding sides are in proportion. Thus,

AB / AU = BC / UV = AC / AV

AB / (20x+108) = 703 / 444

Where AB is equivalent to:

AB = AU + UB

AB = 20x + 108 + 273

AB = 20x + 381

Therefore going back to the first equation:

(20x + 381) / (20x + 108) = 703/444

444 (20x + 381) = 703 (20x + 108)

8880x + 169164 = 14060x + 75924

14060x - 8880x = 169164 – 75924

5180 x = 93240

x = 93240 / 5180

<span>x = 18</span>

4 0
3 years ago
You have $55 and spend x dollars. How much money do you have left?
andreyandreev [35.5K]
Well how much is x worth lol
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Solve for x.<br><br> 2/5 x = 6/5
Alexxandr [17]

Answer: 15/5 or 3

Step-by-step explanation:

2/5x =6/5

1/5x = 3/5

5/5x = 15/5 or 3

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9 dived by 3 = 3
so he surfed for 3 hours = 1/3 of 9
and there are 6 hours left 

so he spent 6 hours building a sandcastle 
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3 years ago
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