If m∠XWZ = 90, what is x?
2 answers:
Answer:
X=11
Step-by-step explanation:
(5x+5)+(2x+8)=90
combine like terms
7x+13=90
subtract 13 from both sides
7x=77
divide 7 on both sides
x=11
check work
(5(11)+5)+(2(11)+8)=90
Answer: The value of x = 11
Step-by-step explanation:
Given : ∠XWZ = 90°
From the picture it can be seen that ∠XWY = (5x+5)° and ∠WYZ=(2x+8)°
And ∠XWY+ ∠WYZ=90°
![\Rightarrow\ (2x+8)^{\circ}+(5x+5)^{\circ}=90^{\circ}\\\\\Rightarrow\ 2x+8+5x+5=90\\\\\Rightarrow\ 7x+13=90\\\\\Rightarrow\ 7x=90-13\ \ \ \text{[Subtract 13 both sides]}\\\\\Rightarrow\ 7x=77\\\\\Rightarrow\ x=\dfrac{77}{7}=11\ \ \ \ \text{[Divide 7 both sides]}](https://tex.z-dn.net/?f=%5CRightarrow%5C%20%282x%2B8%29%5E%7B%5Ccirc%7D%2B%285x%2B5%29%5E%7B%5Ccirc%7D%3D90%5E%7B%5Ccirc%7D%5C%5C%5C%5C%5CRightarrow%5C%202x%2B8%2B5x%2B5%3D90%5C%5C%5C%5C%5CRightarrow%5C%207x%2B13%3D90%5C%5C%5C%5C%5CRightarrow%5C%207x%3D90-13%5C%20%5C%20%5C%20%5Ctext%7B%5BSubtract%2013%20both%20sides%5D%7D%5C%5C%5C%5C%5CRightarrow%5C%207x%3D77%5C%5C%5C%5C%5CRightarrow%5C%20x%3D%5Cdfrac%7B77%7D%7B7%7D%3D11%5C%20%5C%20%5C%20%5C%20%5Ctext%7B%5BDivide%207%20both%20sides%5D%7D)
Hence, the value of x = 11
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x = 15 + 4y that is what I got out of it
0.93m= 93 cm
15mm= 1.5 cm
7.5 cm
93x1.5x7.5=1046.25 cm3
Answer:
Step-by-step explanation:
<u>Given system:</u>
<u>Multiply the first equation by 7 and add up the equations:</u>
- -7x + 7y + 7x + 3y = 7*8 - 16
- 10y = 40
- y = 4
<u>Find y:</u>
Answer:200
Step-by-step explanation:is the answer
So let's find the unit rate of these.
18 mi/ 2 hrs = 9 mi/ 1hr
45 mi / 5 hrs = 9 mi/ 1 hr
So you are running 9 miles an hour.
If you have any questions please comment! :)
