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
sineoko [7]
2 years ago
13

Can someone help me please? What is 21 x ? = 7?

Mathematics
1 answer:
Sauron [17]2 years ago
7 0

Answer:1/3 or 0.3^.

Step-by-step explanation: replace the question mark as x

You might be interested in
A metal strip is being installed around a workbench that is 5 feet long and 3 feet wide. Find how much stripping is needed.
Ksivusya [100]
<span>The workbench represents a rectangle with two sides 5 feet long each and two sides 3 feet wide each. The perimeter of said rectangle is the sum of the four sides or 5 + 5 + 3 + 3 for a total of 16 feet. therefore the amount of metal tape required is 16 feet.</span>
6 0
3 years ago
17 less than twice a number is equal to the number. What is the number?
netineya [11]
Let x be the number. x= 2x-17
-x=-17
x=17
6 0
2 years ago
Read 2 more answers
NEED HELP ON MATH ASAP
RSB [31]
I think it’s A but I’m not sure
7 0
3 years ago
In a group of 101 students 40 are juniors, 50 are female, and 22 are female juniors. Find the probability that a student picked
GREYUIT [131]
I think it might be d
5 0
2 years ago
Read 2 more answers
Alex invests his money in an account paying 2% interest compounded semiannually. What is the effective annual yield on this acco
Travka [436]

Answer: 2.01%.

Step-by-step explanation:

Suppose Alex invests $1 into the account for one year. The formula is A=P0⋅(1+rk)N⋅k with P0=$1. We know that r=0.02 and k=2 compounding periods per year. Now, N=1 year. Substituting the values we have A=$1⋅(1+0.022)2=$1.0201. Now, to calculate the effective annual yield, we will use the formula rEFF=A−P0P0. rEFF=1.0201−11=0.0201 or 2.01%. When rounded to two decimals, rEFF=2.01%. However, do not include the % in your answer.

3 0
2 years ago
Other questions:
  • Find the surface area of the rectangular prism.<br> 2 km<br> 5 km<br> 7 km<br> km<br> Submit Answer
    7·1 answer
  • Cedric purchased a new refrigerator and stove at Home Depot for $3,729 on a deferred payment plan with no down
    9·1 answer
  • The ratio of cats to dogs at the park was 5:7 if there were 60 total how many were dogs
    13·2 answers
  • Which statement can be represented by the equation 18 divided by m = 7.2?
    12·2 answers
  • What is the total area of the velocity sails?
    12·1 answer
  • Solve (x – 3)2 = 5.
    7·1 answer
  • Please help with these questions!!!
    15·1 answer
  • PLZZZ HELP ME ITS DUE TODAY AT 11:59, HELPPPP
    11·2 answers
  • 8x – 9y = –61<br> x +9y = 43<br> what is the y coordinate?
    7·1 answer
  • Simplify the expression<br><br> 6:3x4
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!