A value equal to -(-3.7) is 3.7
The negative signs outside and inside zero out each other, which means you will get a positive. Think of (negative) as opposite. The opposite of an opposite will cancel out and give you what you had.
<span>We write the equation in the standard form which is:
ax^2 + bx + c = 0
(x + 15)(x) = 100
x^2 + 15x - 100 = 0
(x + 20) (x-5) = 0
The solutions are
x = -20 and x = 5
Therefore, the correct answer is option B. </span><span>The solution x = 5 should be kept, but x = –20 is unreasonable.</span><span>
</span>
Answer:
140000
Step-by-step explanation:
Answer:
1st option
Step-by-step explanation:
turn 15% into a decimal:
%15 -> 0.15
multiply $7 by 0.15 then add together:
7 x 0.15 = 1.05
$7 + $1.05 = $8.05
20 hours x $8.05 hour = $161
$161 x 10 weeks = $1610 total by the end of summer
<em>the question does not say how many hours she works normally so the answer might be off...</em>
if she continued with $7, assuming she works 20 hours/week:
20 hours x $7 = $140
$140 x 10 weeks = $1400
$1400 + $200 = $1600 total by the end of summer
Step-by-step explanation:
0.1212 < 0.132< 0.140 < 0.1412 <0.148 <0.150 < 0.152
