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
slamgirl [31]
3 years ago
15

The sum of two numbers is 68. Their difference is 15. Write a system of equations you could use to solve this problem.

Mathematics
1 answer:
SashulF [63]3 years ago
8 0

Answer:

x+y=68

x-y=15

Step-by-step explanation:

A "sum" means that we will be using addition, while a "difference" indicates subtraction. Anytime we have two unknown numbers we generally use "x" and "y".

You might be interested in
Is the equation 4y+6=5y-8 true,false,or open
svlad2 [7]

True.

Work is in attached sheet! <3

5 0
3 years ago
The area of the regular hexagon is 10.4 in.2. a regular hexagon has side lengths of 2 inches and an area of 10.4 inches squared.
VARVARA [1.3K]

Answer:

  (b)  1.7 in

Step-by-step explanation:

The area of a regular polygon in terms of perimeter and apothem is given by the formula ...

   A = 1/2Pa

For a hexagon, the perimeter is 6 times the side length, so this becomes ...

  A = 1/2(6s)a = 3sa . . . . . for side length 's' and apothem 'a'

__

Solving for the apothem, we find ...

  a = A/(3s)

For the given values of area and side length the apothem is ...

  a = 10.4/(3·2) = 1.733... ≈ 1.7 . . . inches

The apothem, rounded to tenths, is 1.7 inches.

5 0
3 years ago
HELP ME PLEASE I NEED ANSWERS REALLY FAST I'LL GIVE BRAINLIEST TO THE CORRECT ANSWER SO PLEASE HELP ME!!!!
GuDViN [60]

Answer:

B

Step-by-step explanation:

These lines dont cross CD and are not parrellel which is what skew lines are.

3 0
3 years ago
What is the density ?
zhannawk [14.2K]
Density is the degree of compactness of a substance. It is the degree of consistency measured by the quantity of mass per unit  volume. It is the relationship between the mass of the substance and the amount of space it takes up. I hope it helps. 
7 0
3 years ago
Read 2 more answers
You are given an n×n board, where n is an even integer and 2≤n≤30. For how many such boards is it possible to cover the board wi
faltersainse [42]

Answer:

  7

Step-by-step explanation:

The number of cells in a tile is 4. If colored alternately, there are 3 of one color and 1 of the alternate color. To balance the coloring, an even number of tiles is needed. Hence the board dimensions must be multiples of 4.

In the given range, there are 7 such boards:

  4×4, 8×8, 12×12, 16×16, 20×20, 24×24, and 28×28

3 0
4 years ago
Other questions:
  • What is the equation with a slope of 0 that has a point of (6,-11)?
    15·1 answer
  • The expression (8-3)^2-(5-2)^2 is equivalent to what numerical expression
    13·1 answer
  • If f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g –
    8·2 answers
  • The types of problems found on ancient papyri, books, and tablets focuses primarily on problems that relate to daily life. The s
    5·2 answers
  • Micah paid $45 for 14.5 gallons of gas. What is the estimated cost of one gallon of gas?
    11·2 answers
  • A researcher obtains t = 2.35 for a repeated-measures study using a sample of n = 8 participants. Based on this t value, what is
    11·1 answer
  • What is the distance between the two points (-2 ,1 )and (4, 3)
    12·1 answer
  • Please help, will grant brainliest if correct, need now!!
    6·1 answer
  • 12+98=<br> really confused on this one
    14·2 answers
  • Solve for f(-3)<br><br> f(x)=5-x<br><br> f(-3)= ?<br> pls helpppp
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!