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
denis-greek [22]
3 years ago
12

At the instant that a cake is removed from the oven, the temperature of the cake is 350°F. After 10 minutes, the cake's temperat

ure is 200°F. If the temperature of the room is 70°F, how much longer will it take for the cake to cool to 90°F? (Round your answer to the nearest 5 minutes.)
a) 15 min
b) 20 min
c) 25 min
d) 30 min
e) 35 min
Please show your work. Thanks~
Mathematics
1 answer:
BARSIC [14]3 years ago
8 0
Once the cake is removed from the oven, it has been exposed to the room temperature of 70°F. After 10 minutes, the cake's temperature decreased to 200°F, which is 150°F cooler than it initially was (350°F). As for the what is asked, 90°F is 260°F cooler than its original temperature (350°F).

This problem can be expressed in a ratio: 
10mins:150<span>°F = N:260</span><span>°F
where N is how long it will take for</span><span> cake to cool to 90°F

</span>150<span>°FxN=10x260
</span>150N=2600
N=2600/150
N=17.33
N<span>≈20 minutes

Thus, it takes approximately 20 minutes </span><span>for the cake to cool to 90°F</span>
You might be interested in
How many interior angles does a triangle have
Aleonysh [2.5K]
There are 3 interior angles.
7 0
3 years ago
Read 2 more answers
Find the equations of a line through these 2 points
stiv31 [10]

answer is 2.2 66 88862 u88272

4 0
3 years ago
(3x^2)^-3y divided by xy
scZoUnD [109]
The number in the photo should be the answer but the problem might just be that your question was worded incorrectly.

8 0
3 years ago
write the slope-intercept form of the line with a slope of 2 and a y-intercept of -4. include your work in your final answer.
IgorLugansk [536]
I cant really show you how to graph this but i can try to explain it. you would make a 4 quadrant graph and do rise over run.
1)start by making the graph
2) on the line of the graph marked Y is where you would put -4
3) From -4, you would go up (rise) by 2 and go over to the right 1 where you end is the slop

5 0
3 years ago
Write the ratio as a fraction in simplest form. The ratio for 18 girls to 27 boys as a fraction is .
love history [14]

Answer:

2/3

Step-by-step explanation:

Reduce the fraction 18/27 into its lowest terms

since both 18 and 27 are divisible by 9, divide both terms by 9

  18/9 = 2

  27/9 = 3

18/27 reduced to lowest terms is 2/3

6 0
3 years ago
Other questions:
  • What is equivelent to 4.05 repeating
    8·1 answer
  • Can someone tell me why the answer for this absolute value equation is all real numbers? ​
    13·1 answer
  • Help Please! Answer ASAP!
    8·2 answers
  • Find the 87th term of the arithmetic sequence –19, -13, -7,...
    9·2 answers
  • Write an equation for the line described in standard form with through (-4, 3), with y-intercept 0
    9·2 answers
  • HELPPPPPPPPP A cylinder has a radius of 24 m and a height of 9 m. What is the exact volume of the cylinder? Question 1 options:
    12·2 answers
  • I need help on #37!!
    5·1 answer
  • What is the solution to the equation?
    14·1 answer
  • Q1. The speed limit on a road is 40km/h. A scooter drives 9
    10·1 answer
  • Lucy and Kareem each opened a savings account today. Lucy opened her account with a starting amount of $160, and she is going to
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!