Dfuentes642:
The temperature at a mountain base camp was −4 degrees Celsius on Saturday. Sunday morning, the temperature was 2 degrees Celsius lower than it was on Saturday. By Sunday evening, the temperature was 1 degree Celsius lower than it was that morning. What was the temperature at the base camp Sunday evening? −9 degrees Celsius −8 degrees Celsius −7 degrees Celsius −5 degrees Celsius
Gdeinward:
solve this equation: (-4 - 2) - 1=
Dfuentes642:
ok
Dfuentes642:
give me a minute or two.
Gdeinward:
alright.
Dfuentes642:
-7
Gdeinward:
that is correct. GOOD JOB!!!
Dfuentes642:
ok whats next
Gdeinward:
that is your answer
Dfuentes642:
or is that straight up the answer
Dfuentes642:
A seagull can dive 45 meters below the surface of the water to reach a fish. It dives 11% of the total depth every 1 second. What is the depth of the seagull after 2 seconds? –2.475 meters –4.95 meters –9.9 meters –7.425 meters
Gdeinward:
All I did was take each amount subtracted from the origional, put it in equation form and then viola
Dfuentes642:
this is next question
Gdeinward:
Do you know how to calculate percentages?
Dfuentes642:
NO
Dfuentes642:
no
Dfuentes642:
no
Gdeinward:
Simpy take the percentage, put it in decimal form, and multiply by the total: 11 = 0.11, and 45 times 0.11
Dfuentes642:
so 45 timea 0.11
Dfuentes642:
that iws what i do cause im confused
Gdeinward:
which is 4.95, then you subtract that from the 45
Dfuentes642:
what?
Dfuentes642:
im not that smart
Gdeinward:
the seagull dives 45 meters, and 11 percent of the total depth each second.
Dfuentes642:
what do i do
Dfuentes642:
multiply?
Gdeinward:
so to find 11 percent of 45, you multiply 45 by 0.11 to get 4.95
Gdeinward:
so in 1 second he dives 4.95 feet.
Dfuentes642:
so thats the answer?
Dfuentes642:
Use long division to determine the decimal equivalent of 8 over 9. 0 point 3 bar 0 point 4 bar 0 point 5 bar 0 point 8 bar
Dfuentes642:
next questioon
Gdeinward:
then to figure out the next total depth, we subtract 4.95 from 45, because we want to know how deep he is after 2 seconds
Gdeinward:
we are not done with the last one.
Dfuentes642:
oh
Gdeinward:
next simply follow the steps again. 40.05 is what you get when you subtract 4.95 from 45.
Dfuentes642:
ok but that is not the options
Gdeinward:
so we must again find 11 percent of 40.05. Do you know how?
Dfuentes642:
no
Dfuentes642:
hello
Gdeinward:
If you saw what we did before, to find a percentage of a number, we turn the percent into a decimal. Then multiply the number by that decimal
Gdeinward:
so 40.05 times 0.11.
Dfuentes642:
ok
Dfuentes642:
4.445
Gdeinward:
so what is 40.05 minus 4.445?
Dfuentes642:
35.605
Gdeinward:
okay so we know what his depth is now, but they want to know how far from sea level, so we subtract 35.605 from 45.
Gdeinward:
which is?
Dfuentes642:
-9.395
Gdeinward:
your answer is C.
Dfuentes642:
ok
Dfuentes642:
Simplify negative 3 over 5 ÷ 7 over 6. negative 7 over 10 negative 18 over 35 18 over 35 7 over 10
Dfuentes642:
please hurry becaus ei have family business to attend
Dfuentes642:
we are almost done
Gdeinward:
so -3/5 / 7/6. Do you know how to go from fraction to decimal form?
Dfuentes642:
no
Dfuentes642:
hello
Dfuentes642:
hello
Gdeinward:
you must divide the top number by the bottom number
Dfuentes642:
ok
Gdeinward:
so -3/5 = -0.6
Gdeinward:
and 7/6 = 1.16
Gdeinward:
so -0.6 divided by 1.16 = -0.51724137931
Dfuentes642:
i still dont understand
Gdeinward:
you need to change all the fractions in the answer choices to decimals, and choose the answer that has the same decima that we just found.
Dfuentes642:
they arent decimals though
Gdeinward:
yeah but you turn the fractions into decimals like we did before.
Dfuentes642:
which is how
Gdeinward:
the answer is B.
Dfuentes642:
ok
Dfuentes642:
thanks
Gdeinward:
divide the top nuber by the bottom
Dfuentes642:
Convert 7 over 8 to a decimal. 0.375 0.875 0.925 0.965
Gdeinward:
Hey hey, like we did before, divide the top number by the bottom.
Dfuentes642:
ok
Dfuentes642:
0.875
Gdeinward:
so the answer is B.
Dfuentes642:
ok
Dfuentes642:
Convert 1 over 8 to a decimal and tell whether it terminates or repeats. 0.125, a number that terminates 1.8, a number that terminates 1.8 with a repeating bar over 8., a number that repeats 0.875 with a repeating bar over 875., a number that repeats
Gdeinward:
so turn it into a decimal like we did before. Terminating numbers dont have decimals with the same repeating number, and non terminating decimas do.
Dfuentes642:
can u please clearly explain to me again
Gdeinward:
to turn a fraction into a decimal, divide the top number by the bottom.
Gdeinward:
do that and tell me what you get.
Dfuentes642:
0.125
Gdeinward:
Tell what the decimal is doing. Does it have any repeating numbers?
Dfuentes642:
no
Gdeinward:
then it is a terminating decimal number.
Gdeinward:
A non terminating decimal is a decimal that is repeating.
Gdeinward:
so the answer is A
Dfuentes642:
ok
Dfuentes642:
Jacob is showing his steps to solve the expression −27.8 ÷ 1 over 7. In which step did Jacob make an error? Step 1: −27.8 ÷ 1 over 7 Step 2: −27.8 ⋅ 7 Step 3: −194.6 Step 1 Step 2 Step 3 There is no error.
Gdeinward:
Do you have any clue?
Dfuentes642:
no
Gdeinward:
there is no error.
Dfuentes642:
ok
Dfuentes642:
Matt is making cookies. He adds 3 over 4 cup of sugar to a bowl. He then removes two 1 over 8 cups of sugar. Which of the following best explains the amount of sugar left in the bowl? 3 over 8, because 3 over 4 minus 2 times 1 over 8 equals 3 over 4 minus 2 over 8 3 over 8, because 3 over 4 minus 2 times 1 over 8 equals 3 over 4 minus 3 over 8 4 over 8, because 3 over 4 minus 2 times 1 over 8 equals 3 over 4 minus 3 over 8 4 over 8, because 3 over 4 minus 2 times 1 over 8 equals 3 over 4 minus 2 over 8 You must check the box below prior to submitting your exam! Check this box to indicate you are ready to submit your exam Submit Exam Explorer Toolbox Workload My Folders Current course: Instructors monitor ALL areas of a student's account Student e-mail accounts are to be used for FLVS course-related email only and not for general introductions or spamming of people in your address book. Please remember to click the Logoff link when you have completed your work in the course. FDK391.03 Previous QuestionNext Question
Gdeinward:
what is 3/4 - 2/8 ?
Dfuentes642:
i dont kn ow
Gdeinward:
you must utelize gcf turn 3/4 into 6/8: 3/4. 3 times 2 = 6 4 times 2 = 6 3/4 = 6/8 6/8 - 2/8 = 4/8
Dfuentes642:
so which one
Gdeinward:
the answer is D.
Dfuentes642:
thank you
Dfuentes642:
i will tell you what i get
Gdeinward:
Your Welcome.
Gdeinward:
sounds good
Dfuentes642:
83.33 percent
Dfuentes642:
a B
Gdeinward:
For future reference, we are not allowed to complete tests for you. Did you do any on your own, or did I answer every question?
Gdeinward:
Thanks Evo, but thats not necessary.
Gdeinward:
d
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