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
Verdich [7]
4 years ago
15

Andrew has 10 more goldfish than todd.together they have 50 goldfish.how many goldfish each boy have?

Mathematics
2 answers:
Alex4 years ago
5 0
Andrew has 30
Todd has 20
Liono4ka [1.6K]4 years ago
3 0

Answer:

Andrew has 30 goldfish and Todd has 10 goldfish

Step-by-step explanation:

Lets call A the number of goldfish Andrew has and T the number of goldfish Todd has.

Andrew has 10 more goldfish than Todd:

A = T + 10

Together they have 50 goldfish:

A + T = 50

Lets replace A = (T + 10) in the las equation:

T + 10 + T = 50

Lets solve T in this equation:

2T + 10 -10 = 50 -10

2T /2 = 40 /2

T = 20

Todd has 20 goldfish

Now lets calculate A = T + 10 = 20 + 10 = 30

Andrew has 30 goldfish

You might be interested in
Which of the following lengths can not be the lengths of the sides of a triangle? A.) 4,6,9 B.) 3,4,2 C.) 2,2,3 D.) 1,1,2
lord [1]

Answer:

D

Step-by-step explanation:

The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

4 + 6 > 9

Yes, these lengths can form a triangle.

3 + 4 > 2

Yes, these lengths can form a triangle.

2 + 2 > 3

Yes, these lengths can form a triangle.

1 + 1 = 2

No, these lengths cannot form a triangle.

8 0
3 years ago
Read 2 more answers
Assume that the mean length of a human pregnancy is 268 days with a standard deviation of 9 days. What percentage of human pregn
Ann [662]
Μ = 268 days, the population mean
σ = 9 days, the population standard deviation

For the random variable x = 272 days, the z-score is
z = (x-μ)/σ
   = (272 - 268)/9
   = 0.4444

From z-tables, obtain
P(z <= 0.6716) = 0.6716 = 67.2%

Answer:  67.2%

3 0
3 years ago
Express the confidence interva l0.555&lt; p &lt; 0.99 in the form p+-E.
kati45 [8]

The confidence interval in the form p+E is p ± E = 0.7725 ±0.435

<h3>How to rewrite the confidence interval?</h3>

The confidence interval is given as:

0.555< p < 0.99

To rewrite the above expression in the form p+E, we use the following equations

p = (0.99 + 0.555)/2 = 0.7725

E = (0.99 - 0.555) = 0.435

So, we have:

p ± E = 0.7725 ±0.435

Hence, the confidence interval in the form p+E is p ± E = 0.7725 ±0.435

Read more about confidence interval at

brainly.com/question/17097944

#SPJ1

8 0
2 years ago
in order for an object to begin to move. stop moving, or change direction, which of the following must be present?​
Angelina_Jolie [31]

Answer:

I think question is incomplete . So I can't give answer.

6 0
3 years ago
You buy a pair of shoes for $40, at check out you are also charged 8% sales tax. What is the total cost of your shoes
satela [25.4K]

Answer:

43.20

Step-by-step explanation:

I hope this is right !

4 0
3 years ago
Read 2 more answers
Other questions:
  • How would I graph it please help
    10·1 answer
  • Simplify (7x2 - 2x + 9) + (3x2 + 15x – 4).
    5·2 answers
  • Write the sum of the numbers as the product of their gcf and another sum 48 plus 14
    5·1 answer
  • You arrive in Montreal with ​$420. How many Canadian dollars can you​ buy? Currency Dollars per Foreign Foreign per Dollar Briti
    7·1 answer
  • Tim and Luke start a lawn-mowing business and buy a lawnmower for $325. They plan to charge $25 to mow one lawn. Which inequalit
    14·2 answers
  • Find the probability of each event. A class has five boys and nine girls. If the teacher randomly picks six students, what is th
    11·1 answer
  • QUESTION SHOWN ON PHOTO.
    7·1 answer
  • Please help. I will mark you brainliest
    8·1 answer
  • Solve for y in terms of x.<br> 3x = 2y-18<br><br> Answers??
    12·2 answers
  • There are 89 houses in a neighborhood with 11 of your friends owning a house in that neighborhood. What is the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!