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OpenStudy (anonymous):
This is the first picture
OpenStudy (anonymous):
This is the second
Vocaloid (vocaloid):
well, let's start off with the first problem (#17)
the shape is a quadrilateral, so we know that all the angles add up to 360
x + x + 95 + 35 = 360
solve for x
OpenStudy (anonymous):
95+35= 130
360-130= 230
OpenStudy (anonymous):
\[230\div2=115\]
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Vocaloid (vocaloid):
yup, so x = 115
Vocaloid (vocaloid):
ready for #18?
OpenStudy (anonymous):
Yup :)
Vocaloid (vocaloid):
well, this is a parallelogram, so we know that opposite sides are equal
all we have to do is write
3x + 12 = 18
and solve for x
OpenStudy (anonymous):
Wait I know the answer.... 18 is 2
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Vocaloid (vocaloid):
yup, x = 2
Vocaloid (vocaloid):
ready for #15?
OpenStudy (anonymous):
yes
Vocaloid (vocaloid):
well, again, this uses the same rule: opposite sides are equal
so 3x - 2 = 25
solve for x
OpenStudy (anonymous):
x=9?
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Vocaloid (vocaloid):
yup, ready for the last one?
OpenStudy (anonymous):
Yes. ^.^
Vocaloid (vocaloid):
this is a quadrilaterial, so we use the 360 rule again
3x + 2x + 44 + 86 = 360
x = ?
OpenStudy (anonymous):
Idk..... I'm struggling with this one
Vocaloid (vocaloid):
hm, ok, let's start by combining like terms
3x + 2x = ?
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OpenStudy (anonymous):
3x+2x=5x
44+84=130
OpenStudy (anonymous):
360-130=230
Vocaloid (vocaloid):
good so far.
right now we have 5x = 230
so x = ?
OpenStudy (anonymous):
230/5=46
OpenStudy (anonymous):
I think
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