Answer:
<h2>x + 5 < 13</h2>
Step-by-step explanation:
x < 8 <em>add 5 to both sides</em>
x + 5 < 8 + 5
x + 5 < 13
Let the initial number of girls be x, this represents 40% of the dancers.
Total number of dancers will therefore be:
100/40*x=2.5x
When 15 more girls joined, the new number of girls was:
x+15 this represents the total percentage of 52%. The new number of dancers became:
2.5x+15:
therefore the new percentage of girls can be expressed as follows:
(new number of girls)/(new number of dancers)×100
(x+15)/(2.5x+15)×100=52
(x+15)/(2.5x+15)=0.52
x+15=0.52(2.5x+15)
x+15=1.3x+7.8
15-7.8=1.3x-x
7.2=0.3x
x=7.2/0.3=24
The number of students after additional number of girls will be:
2.5x+15
=2.5×24+15
=60+15
=75 students
Answer:
A - monthly payment: $1,580.89
Step-by-step explanation:
175 + 129 + 283 = 587
2,250 - 587 = 1,663
1989.23 (More then she has left
1790.25 (More then she has left
1580.89 (less then she has left
A > monthly payment: $1,580.89
V=
note, r and R are differnt
so multipl both sides by (r+R)
V(r+R)=12R
distribute
Vr+VR=12R
minus VR from both sides
Vr=12R-VR
undistribute R
Vr=R(12-V)
divide both sides by (12-V)
or
The answer is x=-21 im absolutly positive
