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
Gwar [14]
2 years ago
8

Robert takes a roast out of the oven when the internal temperature of the roast is 165°F. After 15 minutes, the temperature of t

he roast drops to 135°F.
The temperature of the room is 70°F.

How long does it take for the temperature of the roast to drop to 110°F?
Mathematics
1 answer:
faust18 [17]2 years ago
6 0

Step-by-step explanation:

Rate of drop of temperature = Change in temperature/Rate

=> (165 - 135)/15

=> 30/15

=> 2 ⁰F/min

Now, The time at which the temperature of will be 70⁰F = 70/Rate

=> 70/2

=> 35 min

Time for 110⁰ F

=> 110/2

=> 55 min

You might be interested in
Lorenzo recorded the favorite food of students in his class. According to the results of the survey, what percent of the student
nalin [4]

Answer:

30%

Step-by-step explanation:

Before starting to solve this question we have to understand the following. 1% is equal to one hundredth of something whole, and can be write as \frac{1}{100} .

Now in order to solve this question we will first have to find a fraction that represent how much student out of the whole class choose hamburgers. We can easily find this fraction since the numerator of the fraction will be equal to the number of people that choose hamburgers and the denominator will be equal to the number of all students in the class. So we get......

\frac{12}{8 + 12 + 14+6} = \frac{12}{40}  = \frac{3}{10}

Now in order to find out what percentage will this fraction equal to we will have make a fraction with the same value but with a denominator being 100. To do that we will have to understand the following......

\frac{a}{b} = \frac{am}{bm} (m is any number except 0)

The main I idea of this rule is that if we multiply the numerator and the denominator by the same number (any number except 0) we will get a fraction with the same value but with a different denominator and numerator.

So in our case we we do the following.........

(multiply both numerator and the denominator by 10 and we get...)

\frac{3}{10} = \frac{(3)(10)}{(10)(10)} = \frac{30}{100}  

Now if we go back to what I said at the start of my explanation we will understand that another way of writing down \frac{30}{100} is 30%.

4 0
3 years ago
Simplify the expression<br> 8s - 11s + 6
raketka [301]
8 s -11 s + 6= - 3 s + 6=
= 3( - s +2)
6 0
3 years ago
Read 2 more answers
How Important Is Regular Exercise? In a recent poll1 of 1000 American adults, the number saying that exercise is an important pa
Elza [17]

Answer:

Step-by-step explanation:

Given that in a recent poll 1 of 1000 American adults, the number saying that exercise is an important part of daily life was 753.

Sample proportion = \frac{753}{1000} =0.753

To find 90% confidence interval we must find std error of proportion first

As per central limit theorem, sample proportion will follow a normal distribution with mean = 0.753

Std error of proportion= \sqrt{0.753*0.247/1000} \\=0.01363

90% Z critical value = 1.645

Margin of error = 1.645*0.01363 = 0.0224

Confidence interval lower bound = 0.753-0.0224=0.731

Upper bound = 0.775

6 0
3 years ago
Joe has 12 cups of soup in a pot. If he puts 1/4 cup of soup into each bowl, how many bowls will be used?
givi [52]

Answer:

48

Step-by-step explanation:

you need 4 one-fourth cups to make one cup. multiply 12 by 4 and you get 48

5 0
3 years ago
10^1 has what place value?
Oxana [17]
It is in the ten's place. hope that helped
6 0
3 years ago
Read 2 more answers
Other questions:
  • Square root 3 (5 square root 2 + 4 square root 3) <br><br> Expand and simplify if possible
    14·1 answer
  • Need some help in geometry will give brainliest
    8·1 answer
  • NEED ANSWER ASAP PLEASE
    6·1 answer
  • A school orders 12 boxes of dice. Each box contains six bags of dice. Each bag contains
    13·2 answers
  • What is six hundred ten thousand in scientific notation
    5·2 answers
  • Multiply and simplify.
    10·2 answers
  • Which of the following expressions is a polynomial?
    10·1 answer
  • Can someone help me, and answer it correctly plz
    8·1 answer
  • I dont know how to answer thiss questions.. can anyone help me?​
    8·1 answer
  • please help, i will mark brainliest. i will report spam answers
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!