Answer:
i realy try my best here it
Rewrite the equation as
7
x
+
5
y
=
z
.
7
x
+
5
y
=
z
Subtract
5
y
from both sides of the equation.
7
x
=
z
−
5
y
Divide each term by
7
and simplify.
Tap for more steps...
x
=
z
7
−
5
y
7
Step-by-step explanation:
Since there are 14 boys and the whole class has 31 students
We get, the ratio of the part-to-whole relationship for boys is 14/31.
And since there are 17 girls
We get, the ratio of the part-to-whole relationship for girls is 17/31.
Answer:
<h2><em><u>x = -17.5</u></em></h2>
Explanation:
-8x = 140
-8x / -8 = 140 / -8
x = ⁻³⁵⁄₂
x = -17.5
Pretty sure that it is 9/7.
