You have it correct those lines on either side means absolute value so l-15l = 15
Answer:
x = -7
Step-by-step explanation:
6/x + 8/x + 5 =3
5x + 14 /x =3
Step 1: Multiply both sides by x.
5x+14=3x
5x+14−3x=3x−3x(Subtract 3x from both sides)
2x+14=0
2x+14−14=0−14(Subtract 14 from both sides)
2x=−14
2x
2
=
−14
2
(Divide both sides by 2)
x=−7
Check answers. (Plug them in to make sure they work.)
x=−7(Works in original equation)
Answer:
109.6%
Step-by-step explanation:
<u>Last year:</u>
Company A stock + Company B stock = total amount of stock:
$3160 + $5800 = $8960
<u>This year:</u>
Company A stock: $3160 + ($3160*0.20) = $3792
Company B stock: $5800 + (5800*0.04) = $6032
Company A stock + Company B stock = total amount of stock:
$3792 + $6032 = $9824
<u>Total amount of increase from last year:</u>
(9824/8960)*100 = 109.6 percent
Answer:
After 17 hours there will be about 143 bacteria.
Step-by-step explanation:
Given that in a lab experiment, 80 bacteria are placed in a petri dish, and the conditions are such that the number of bacteria is able to double every 19 hours, to determine how many bacteria would there be after 17 hours, to the nearest whole number, the following calculation must be performed:
80 x ((2/19) x 17) = X
80 x (0.1052 x 17) = X
80 x 1.7894 = X
143.15 = X
Thus, after 17 hours there will be about 143 bacteria.
Step-by-step explanation:
9 × 10 + 22 = 112
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