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
bixtya [17]
3 years ago
7

One batch of pink paint uses 2 cups of red paint and 7 cups of white paint. Mai made a large batch of pink paint using 21 cups o

f white paint. How many cups of red paint did she use?
Mathematics
1 answer:
aev [14]3 years ago
3 0

Answer:

3

Step-by-step explanation:

because 1 pink batch uses 2 cups of red paint =1+2 =3

and 7 cups of whit paints

and we know that she used a large batch of pink paint using 21 cups of white paints .Therefore she used 3 cups of red paints.

Because =7×3=21

You might be interested in
How many moles are in 25g of CO2?<br><br> With calculation show please
GuDViN [60]
Here’s the answer! Let me know if you have any questions
5 0
3 years ago
Read 2 more answers
A certain compound has a half-life of four days. Write and use an exponential decay function to find the amount of compound rema
dimaraw [331]

Answer:

1.97 ounces

Step-by-step explanation:

-The exponential decay function is given by the formula:

P_t=P_oe^{-rt}\\\\

Given that the half-life is 4 days, we can substitute in the formula to solve the rate of decay for a single half-life:

P_t=P_oe^{rt}\\\\P_t=0.5P_o\\\\\therefore 0.5=e^{-4r}\\\\-4r=In(0.5)\\\\r=0.17329

#Since, 1 week has 7 days, 3 weeks is a 21-day period, thus, t=21.

#We substitute and solve for the amount remaining after 21days of decay:

P_t=P_oe^{-rt}\\\\=75e^{-21\times 0.17329}\\\\=1.97072\\\\\approx1.97 \ oz

Hence, the amount remaining after 3 weeks of decays is approximately 1.97 ounces

4 0
3 years ago
A building is 2ft from a 7 ft fence that surrounds the property. A worker wants to wash a window in the building 11ft from the g
777dan777 [17]

Answer:


Step-by-step explanation:

plug the numbers into the Pythagorean theorem

which is A^2 + B^2 = C^2

4 0
3 years ago
Read 2 more answers
What number falls between √60 and √75
Natalija [7]
To find the number halfway between 60 and 75, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 60 and 75 into our formula, we get:

(60 + 75)/2 = 67.5

Thus, the number halfway between 60 and 75 is 67.5.
3 0
3 years ago
I need help with number 12 I’ll rate 5 stars if you help
Brrunno [24]

Answer:

0.25in.

Step-by-step explanation:

5÷20=0.25in.

8 0
3 years ago
Other questions:
  • 28. A number has 4 and 5 as factors. What other numbers must be factors? Why? What is the smallest number
    10·1 answer
  • What's the answer??
    7·1 answer
  • If you drew a tree diagram showing how many ways 6 coins could be​ flipped, how many branches would it​ have?
    14·2 answers
  • Write a multiplication problem using two 2 digit factors with a resulting product that falls between 7,000 and 8,000
    7·2 answers
  • If you have ever swum in a pool and your eyes began to sting and turn red, you are aware of the effects on an incorrect pH level
    12·1 answer
  • HELPPPPPPPPPPPPPPPPPPP))))))))************
    8·1 answer
  • X(x+3)+5(x+3) find the fractorization​
    6·1 answer
  • Write 0.63 as a fraction in simplest form.
    14·2 answers
  • Hmmmmmmmmmmmmmmmmmmmmmmmmmmm
    5·1 answer
  • Can u help me figure this out lol
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!