larry5007
23.08.2019 •
Mathematics
The measure of angle jkl can be represented using the expression 3x + 5.
what is the degree measure of jkl?
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Ответ:
∠JKL = 65°
Explanation:
We are given that:
∠JKL = 3x + 5
∠JKM = 45°
∠MKL = x°
Now, we know that ∠JKL is the summation of ∠JKM and ∠MKL
Therefore:
∠JKL = ∠JKM + ∠MKL
Substitute with the givens in the above equation and solve for x:
∠JKL = ∠JKM + ∠MKL
3x + 5 = 45° + x
3x - x = 45 - 5
2x = 40
x = 20
This means that:
∠JKL = 3x + 5 = 3(20) + 5 = 65°
∠JKM = 45°
∠MKL = x° = 20°
Check:
∠JKL = ∠JKM + ∠MKL
∠JKL = 45° + 20° = 65° > verified
Hope this helps :)
Ответ:
The measure of ∠JKL is 65°
Step-by-step explanation:
Consider the provided diagram.
We need to find the degree measure of ∠JKL.
It is given that ∠JKM=45° and ∠MKL=x°
Also it is given that the measure of angle JKL can be represented using the expression 3x + 5.
Thus ∠JKL=3x+5
From the figure it can be concluded that ∠JKL is equal to the sum of ∠JKM and ∠MKL
This can be written as:
∠JKL = ∠JKM+∠MKL
Substitute the respective values in the above equation.
3x+5 = 45+x
Subtract x and 5 from both the sides.
3x+5-x-5 = 45+x-x-5
2x = 40
x = 20
Thus, the measure of ∠MKL=20°
Substitute the value of x in ∠JKL = 3x+5.
∠JKL = 3(20)+5
∠JKL = 60+5
∠JKL = 65
Hence, the measure of ∠JKL is 65°
Ответ:
Step-by-step explanation:
since Chelsea can paint in 9hrs and Greg in 7, add the hrs and divide by 2 i.e (9+7)/2 =8 hrs
~10 hrs
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