24jameb
05.01.2020 •
Mathematics
Complete the statements about the number 7,777.777. the value of the 7 in the hundredths place is times the value of the 7 in the thousandths place. the value of the 7 in the place is times the value of the 7 in the ones place. the value of the 7 in the hundreds place is 10 times the value of the 7 in the
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Ответ:
The value of the 7 in the hundredths place is 10 the value of the 7 in the thousandths place. The value of the 7 in the tens place is 10 times the value of the 7 in the ones place. The value of the 7 in the hundreds place is 10 times the value of the 7 in the tens place.
Hope this helped!
Nate
Ответ:
4x=3+3y2
from equation 2
X=3+3y/4
substitute for the value of X in equation1
y=7/6(3+3y)/4
y=7 x4/6(3+3y)
y=28/18+18y
y(18+18y)=28
18y²+18y-28=0
9y²+9y-14
X=-b±√b² - 4ac/2a
X=-18±√18²-4(-28x18)/2x18
x=-18±√324+2016/36
X=-18±√65
X=-18+8.06
x=9.94
X=-18-8.06=-26.0 6
X=9.9 ; X=-26.06