SOLUTIONS VERIFIED GRADED A+
The graph shows changes over time in a population of bacteria added to a test
tube of growth medium. What activity characterizes the growth cycle during
phase 2?
Bacteria are dividing regularly by binary fission
Which of the following is a true principle of inertia?
It is proportional to the mass of an object.
Which human system contains the thyroid gland?
Endocrine
At an airport, 25% of the flights arrive from within the state, 35% from out of state,
and the rest from other countries. How many flights arrived from out of state if a
total of 240 flights arrive?
84
Equation to find the percent of a number
make the percentage a decimal (35% = 0.35 or 79% = 0.79) then forget the decimal and
multiply the percentage by the number you are trying to get a percentage from (35 x 240
= 8,400) then move the answer back the same number of decimal points you had
before which in this case would be two (8,400 to 84.00) 84 is your answer.
A friend gives a neighbor 13 2/3 feet of twine from a brand new spool, leaving 38
2/5 feet of spine on the spool. How many feet of twine were originally on the
spool?
,52 1/15
If an employee invests 5% of his pre-tax salary into a retirement plan, the
company will match 25% of that amount. How much will the company contribute
to the plan if the employee earns $50,000 before taxes?
625
Two tanks are each partially filled with 96 gallons of water, as shown in the
illustration. Tank A is 4/5 full, and Tank B is 2/3 full. What is the maximum amount
of water that can be held in both tanks together?
264 (/5, 80%, or 0.80 = 120) and (/3, 66%, or 0.66 = 144) (144 + 120 = 264)
A wooden box is 1 foot high, 3 feet wide, and 5 feet long. Bob is going to use it for
a table top and plans to paint the 4 sides and the top. How many square feet will
be painted?
31
What is the approximate surface area of a box that is 8 inches wide, 12 inches
long, and 9 inches tall?
552 ( 2(lw + lh + hw) )
A structure in 1:20 scale drawing has a height of 36 cm. If the ratio of the height
of the structure to the width is 4:1 What is the width of the actual structure, to the
nearest tenth of a meter?
1.8
Julia earns $68,000 per year and wants to begin investing her money. She figures
she can afford to invest 40% of her annual salary. Of that, 60% will be invested in
corporate bonds, while 40% will be invested into securities. If the corporate
, bonds and securities yield 7% and 12% annual interest, respectively, how much
interest will Julia earn in 1 year.
$2,448
A $15 minimum payment was made on a credit card balance of $480. The card
was not used the following month, but the new statement showed an ending
balance of $548.70 What percent is the credit card company charging to carry the
balance?
18%
Maria exercises for 1 5/6 every Saturday. If she runs for 3/4 of that time, how
many hours does she run each Saturday?
1 3/8
A decorator removes equal-sized corners from a rectangular piece of fabric to
create a tablecloth, as shown in the illustration. What is the area of the
tablecloth?
24 square feet
Zeke and Brandon each get $5 from their grandmother every Saturday. After 13
weeks, Zeke had a total of $13, and Brandon had $55. Approximately what percent
of his 13-week allowance did Zeke spend?
80%
A house sold for $480,000 and the realtor received a $31,200 commission. What
percent of the selling price did the realtor earn?
6.5%