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Vladimir [108]
3 years ago
13

What is the result when −2/3 subtracted from −14/15?

Mathematics
1 answer:
disa [49]3 years ago
7 0

Step-by-step explanation:

14/15 - 2/3 =

14/15 and 2/3 lcm is 15

so 14/15 becomes 14/15

- 2/3 become 10/15

15÷5=3 and 10÷5=2

so 14/15

-10/15=4/15

14-10 = 4

answer is 4/15 and since 15 can't be divided by 4 equally it is in simplest form at 4/15

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What is m∠V ? Round only your final answer to the nearest tenth. 53.9º 56.1º 61.9º 70.0º The figure shows acute triangle U V W.
IrinaVladis [17]

The correct option is:  53.9°

<em><u>Explanation</u></em>

According  to the below diagram,  \triangle UVW is acute triangle, in which \overline{UV}= 7.6 inches, \overline{VW}= 8.6 inches and \overline{WU}=7.4 inches

If we <u>apply cosine rule</u> here, then we will get.....

cos(V) = \frac{(UV)^2+(VW)^2 -(WU)^2}{2(UV)(VW)}

Now, plugging the given values, we will get....

cos(V)=\frac{(7.6)^2+(8.6)^2-(7.4)^2}{2(7.6)(8.6)}\\ \\ cos(V)= \frac{76.96}{130.72}=0.58873...\\ \\ V= cos^-^1(0.58873...)=53.932.... \approx 53.9 degree

So, the measure of \angle V is 53.9°


5 0
3 years ago
PLEASE HELP ME SOLVE THIS IS MY 3RD ATTEMPT ON HERE.
Tcecarenko [31]

Answer:

58 degrees.

Step-by-step explanation:

m<3=180-119=61

Write the equation :

61+(10x-22)+(9x-11)=180

x=8

m<1= 58 degrees

6 0
3 years ago
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A shoe store was having a back to school sale were you could buy 6 pairs of shoes for 52.62 If a large family decided to buy 3 p
Black_prince [1.1K]

Answer:

$26.31

Step-by-step explanation:

Since 3 is half of 6, 3 pairs of shoes would cost half the price.

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52.62/2=$26.31

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Change each decimal to a percent 6.215 show work and steps listed on the side
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Answer:

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Step-by-step explanation:

To convert 6.215 to a percent, multiply 6.215 by 100%:  6.215(100%) =  621.5%

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