Please help me solve this... (Exterior Angle theorem)

Mathematics

2 answers:

grigory [225]3 years ago

5 0

Answer:

x=12

Step-by-step explanation:

guajiro [1.7K]3 years ago

4 0

I believe that x equal 12

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For a field trip 29 students rode in cars and the rest filled eight buses. how many students were in each bus if 237 students we

Inessa [10]

So if 29 students rode in cars, we can subtract 29 from 237 because we don't need to know about the people in the cars, which means that 208 students rode on buses. If there were 8 buses, the we need to divide 208 by 8 which makes 26 students per bus.

I hope this helps!

4 0

3 years ago

Is x = 1 the solution to 3(x + 3) = 8 - 2x (show me why! Or maybe why not)

zimovet [89]

3(x+3)= 8-2x
3x +9 = 8 - 2x
3x + 1 =-2x
1 = -5x
x = -1/5

no

7 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Csqrt%7B6y%2B7%7D%3D5%2B%5Csqrt%7By-3%7D%20%5C%5CI%20get%20how%20to%20begin%20this%20but%20h

PilotLPTM [1.2K]

Answer:

$\sqrt{6y+7} -\sqrt{y-3} =5\\(\sqrt{6y+7} -\sqrt{y-3} )^2=5^2\\\sqrt{6y+7} ^2+\sqrt{y-3} ^2-2\sqrt{(6y+7)(y-3)} =25\\6y+7+y-3-25=2\sqrt{(6y+7)(y-3)} \\7y-21=2\sqrt{(6y+7)(y-3)} \\(7y-21)^2=(2\sqrt{6y^2-18y+7y-21} )^2\\49y^2+441-294y=4(6y^2-11y-21)\\49y^2+441-294y=24y^2-44y-84\\49y^2-24y^2+441+84-294y+44y=0\\25y^2-250y+525=0\\25(y^2-10y+21)=0\\y^2-10y+21=0\\y^2-7y-3y+21=0\\y(y-7)-3(y-7)=0\\(y-7)(y-3)=0\\y-7=0 or y-3=0\\y=7 ,y=3$