1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Inessa05 [86]
4 years ago
13

A scientist is measuring the temperature change in a chemical compund. The temperature dropped 11 degrees per hour from the orig

inal. After 4 hours, the temperature was 90 degress. Find the compounds original tempature
Mathematics
1 answer:
Vitek1552 [10]4 years ago
8 0

Answer:

33.5

Step-by-step explanation:

let original temperature be T

If after 1 hr temperature drops by 11, then the rate of temperature drop is 11 per hr.

After 4 hours, temperature will drop to 4(T-11).

if temperature after 4 hrs is 90, then

4(T-11)=90

T-11=90/4

T=(90/4) + 11

T=33.5

You might be interested in
Mrs. Hall records the heights of 50 students in a spreadsheet. The mean height is 68 inches. After looking at the data again, sh
Vedmedyk [2.9K]
67.3 repeating. You multiply 68 times 50, subtract 82 and 86, them divide by 48. If that doesn't work, try dividing by 50. That should work. 
8 0
3 years ago
Read 2 more answers
For science class, a student recorded the high and low temperatures, in Fahrenheit, over a ten day period in September. The data
statuscvo [17]

Answer:

hdghjdguwa

Step-by-step explanation:

dznsdgb

5 0
3 years ago
How do u do this stuff I’m confused
Luba_88 [7]
Ok so I'll show u how to do number 7
So 12 and one third basically equals 12+(1/3)
Now in order to add this to another fraction, we need to make the mixed numbers in improper fractions
So 12 and (1/3)=(36/3)+(1/3)
And 9 and (2/3)=(27/3)+(2/3)
Ok so the first number (or 12 and (1/3)) basically equals (37/3)
The second number (or 9 and (2/3)) equals (29/3)

Now that we have the two numbers with common denominators, we can do the math.

(37/3)-(29/3) is the same as (37-29)/3
So simplifying would be
(8/3) or 2 and (2/3)
Hoped this helped
4 0
3 years ago
Now suppose instead that Jane withdraws $500 from her checking account and uses $300 of this money to pay her federal income tax
zysi [14]

Answer:

Step-by-step explanation:

a. Money held by individuals in savings accounts is part of the M2 money supply, but not part ofthe M1 money supply. Therefore, when Jane withdraws $500 cash from her savings account,the M1 money supply increases by $500. However, the M2 money supply does not changebecause the M1 money supply is included as part of the M2 money supply.b. Money held by banks and governments is not included as part of the money supply. Therefore,when Jane uses $300 to pay her income tax to the U.S. Treasury, that total of $300 is taken out ofboth the M1 and M2 money supplies. When Jane deposits the remaining cash ($80) into hersavings account, the M1 money supply is reduced by that amount, but it does not affect the M2money supply. Therefore, Jane's actions cause the M2 money supply to change by ­$300 (theamount used to pay her taxes) and the M1 money supply to change by ­$380 (the amount used topay her taxes plus the amount that was deposited into her savings account). Note that it does notmatter that Jane no longer has the $120 she used to pay for the gold clubs, as the funds remainsin someone else's checking account. So this amount is neither removed from the M1 moneysupply nor the M2 money supply.NumericResponseDifficulty: 03 HardLearning Objective: 14­02 List anddescribe the components of the U.S.money supply.5000­380­300References

5 0
3 years ago
A truck can be rented from Company A for $70.00 a day plus $0.00 per mile. Company B charges $40.00 a day plus $0.70 per mile to
inessss [21]
Sent a picture of the solution to the problem (s).

7 0
4 years ago
Other questions:
  • Monica runs on a treadmill at an average speed of 7.5 miles per hour for 15 minutes. If, the next day, she runs the same distanc
    12·1 answer
  • Find the inverse of f(x)=2x-5​
    12·1 answer
  • A line is drawn through (–7, 11) and (8, –9). The equation y – 11=-4/3 (x + 7) is written to represent the line. Which equations
    10·2 answers
  • Find the distance between Nashville and Memphis if they are 14 in apart on a map with a scale of 1 inches:18 miles
    14·1 answer
  • Why is lowering the interest rate on reserves considered an expansionary monetary policy? A. It encourages banks to lend money i
    6·1 answer
  • Ava arrived at a restaurant for dinner at 6:14. She placed her order, ate, and paid the bill.
    15·1 answer
  • What is the result when (2x+2)^2 is subtracted from 1
    8·1 answer
  • Help me with this plzzz
    5·2 answers
  • Line M is represented by the following equation: x + y = −1 What is most likely the equation for line P so the set of equations
    11·1 answer
  • Name the following polynomial: 4x^2 +8+16 cubic polynomial quartic trinomial quadratic trinomial cubic trinomial
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!