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
MaRussiya [10]
3 years ago
10

Keegan and Annie are working on an experiment in the science lab. Their mixture contains ingredients that weigh 5.22 grams, 5.7

grams, and 7.43 grams. Keegan calculates the combined weight to be 18.35 grams; Annie calculates it to be 13.22 grams.
Who is correct, and why?

Mathematics
1 answer:
Elza [17]3 years ago
5 0

Answer:

C

Step-by-step explanation:

You might be interested in
A flagpole casts a shadow of 10ft long. A girl standing nnext to the flagpole casts a shadow 2.5 ft. long.If the girl is 5 ft. t
loris [4]
Since we know that they have to e similar, it is a 20ft tall flagpole. the shadow of the girl is half of her height, so since the flag pole shadow is 10ft it is simple 10 multiplied by 2
3 0
3 years ago
Read 2 more answers
One shelf will hold 45 pounds of boxes. If you have to store 270 pounds of boxes, how many shelves will you need?
arlik [135]

Hi!

We will solve this using ratios, like this:

1 shelf holds 45 pounds

x shelves hold 270 pounds

______________________

x = (270*1)/45

x = 270/45

x = 6

6 shelves will be needed to hold 270 pounds of boxes.

Hope this helps!

6 0
3 years ago
Read 2 more answers
Type the correct answer in each box. Use numerals instead of words. Solve the equation by completing the square. x2 + 20x + 82 =
VikaD [51]
7=x^2+20x+82
0=x^2+20x+75

What adds to 20 and multiplies to 75? 5 and 15.

x^2+5x+15x+75
x(x+5) 15(x+5)
(x+15) (x+5)

Zeroes are x= -5 and x= -15
5 0
3 years ago
If p(a) = 1/3, p(b) = 2/5, and p(a ∪ b) = 3/5, then p(a ∩ b) =
Mumz [18]
P(a ∪ b) = p(a) + p(b) - p(a ∩ b)
p(a ∩ b) = p(a) + p(b) - p(a ∪ b)
p(a ∩ b) = 1/3 + 2/5 - 3/5
p(a ∩ b) = 2/15
8 0
3 years ago
X
9966 [12]
The answer will be x=23
6 0
2 years ago
Other questions:
  • Marcus drew a quadrilateral with only 1 pair of parallel sides. Which quadrilateral did Marcus draw?
    10·2 answers
  • Negative 5 minus t/6 > equal too negative 9
    5·1 answer
  • What is the difference of 5 and 3.07
    7·1 answer
  • What is the domain of the function y equals 2 square root of
    15·1 answer
  • Please help me before i fail!! Find the solution(s) of the following equation.
    8·2 answers
  • Find the midpoint Mof the segment with endpoints C(-3,5) and D(6,-2).
    5·1 answer
  • What is the solution to this linear system?
    15·1 answer
  • The Jones family is building a circular swimming pool. If the radius of the pool is 14 feet, what is its circumference? Use π =
    9·1 answer
  • Linear equation 3+X=-2 ​
    8·2 answers
  • If julia can solve 90% of the problems then what is the complement
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!