Answer:
7*(n+4) =8
Step-by-step explanation:
seven times the sum
7*(
of an number and 4
7*( n+4)
equal 8
7*(n+4) =8
Answer:
12 quarters 23 dimes
Step-by-step explanation:
x(0.25)+(2x-1)(0.10)=5.30
0.25x+0.2x-0.10=5.30
0.45x=5.40
x=12
12 quarters
12(2)=24-1=23 dimes
So the division of a number and -9 or
x/-9
+10=11 or
(x/-9)+10=11
subtract 10 from both sides
x/-9=1
multiply both sides by -9
x=-9
12+(-6)-[(-21)/3]
=6-(-7)=6+7=13
I believe x=10.25 because of the pythagorean theorem.
