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
Mariana [72]
3 years ago
6

Please help ! !!!!!!!!

Mathematics
2 answers:
Lostsunrise [7]3 years ago
7 0

Answer:90

Step-by-step explanation:

20- 120

antiseptic1488 [7]3 years ago
3 0

Answer:

c, 50

Step-by-step explanation:

120-24= 96

Since we are measuring the size of one of the halves, you have to split that number in half, so 96 ÷ 2= 48.

48 rounds up to 50, so 50 is the answer

You might be interested in
A group of friends go to the movies. The function h(x) represents the amount of money spent, where x is the number of friends at
djverab [1.8K]

This answer does not make sense because you can't buy half a movie ticket

7 0
3 years ago
Read 2 more answers
Bronxville middle school is going to rent some vans
ohaa [14]
Don't get what u asking

3 0
3 years ago
Set E = { three-digit numbers divisible by 8 }<br> Find n(E) = ? ( don't mind the nos. 3 )
Julli [10]
624 is divided by 8. Hope this helps.
4 0
3 years ago
Read 2 more answers
A concentric-tube heat exchanger cools hot water owing at 1 kg/s from 80C to 30C. It uses air owing at 5 kg/s to perform this co
nordsb [41]

Answer:

The log-mean-temperature-difference is 24.03⁰C

Step-by-step explanation:

First we need to know if the heat exchanger is in parallel flow or counter-flow. However, counter flow arrangement is best used to recover heat.

L.M.T.D for counter flow is given as;

L.M.T.D =\frac{(T_h_f_1 -T_c_f_2)-(T_h_f_2 -T_c_f_1)}{2.3log[\frac{T_h_f_1 -T_c_f_2}{T_h_f_2 -T_c_f_1}]}

where;

Thf₁ is the initial temperature of the hot fluid = 80°C

Tcf₂ is the final temperature of the cold fluid = 51.5°C

Thf₁ - Tcf₂ = 80 - 51.5 = 28.5⁰C

Thf₂ is the final temperature of the hot fluid = 30°C

Tcf₁ is the initial temperature of the cold fluid = 10°C

Thf₂ - Tcf₁ = 30 - 10 = 20⁰C

L.M.T.D = \frac{28.5 -20}{2.3Log[\frac{28.5}{20}]} \\\\L.M.T.D = \frac{8.5}{0.3538} =24.03^oC

Therefore, the log-mean-temperature-difference is 24.03⁰C

3 0
3 years ago
Read 2 more answers
Human hair grows at the average rate of 1/3 inch per month. Sara wants her hair to grow 4 2/3 inches longer. About how many mont
SVETLANKA909090 [29]

Answer:

14 months

Step-by-step explanation:

1/3 x 12 = 4.

1/3 x 2 = 2/3.

12 + 2 = 14.

It will take her 14 months.

Hope this helps! :)

6 0
3 years ago
Other questions:
  • Write an equation to solve the problem.
    11·2 answers
  • How to do this ? Can anyone help me ?
    8·1 answer
  • Convert 14 hours into seconds
    14·2 answers
  • Solve the equation. If there is not solution, write no solution. 4 times the absolute value of the quantity x plus one third end
    6·1 answer
  • Is 14 times 10 to the power of 8 in scientific notation?
    9·2 answers
  • What’s the value of u , help please
    11·1 answer
  • Help plz plz plz i need help
    9·1 answer
  • PLEASEEE HELPP SOMEONE WITH PART C ONLY WITH EXPLANATION THANK YOU!!!
    8·1 answer
  • Someone please help I’m so confused
    11·2 answers
  • 5x² - 4x + 7 - (2x² - 2x - 3)<br> resolver paso a paso <br> xfas
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!