answer.
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
Leona [35]
2 years ago
8

Joshua is five years older than David. Simon is four years older than Joshua and nine years older than David. Simon’s and David’

s ages added together equal 15. How old are the boys?
Mathematics
1 answer:
Tasya [4]2 years ago
8 0
David's age: x
Joshua: x + 5
Simon: (x+5) + 4 or x + 9

Simon's age + David's age = 15
(x+9) + (x) = 15
2x = 15 - 9
2x/2 = 6/2
x = 3

The ages of the boys:

David: x = 3 years old
Joshua: 3+5 = 8 years old
Simon: 3+9 = 12 years old



Read more on Brainly.ph - https://brainly.ph/question/1602102#readmore
You might be interested in
Factor the polynomial completely 11x^4y-22x^2y^2
Kazeer [188]
The Greatest Common factor is 11x^2y  so the factors are
11x^2y(x^2 - 2y)
8 0
2 years ago
2. Juanita is asked to write the standard equation of a
Crazy boy [7]

Answer:

It is not.  Also use ^2 to represent squaring a number.  

Step-by-step explanation:

First, USE ^2 FOR SQUARED

It is not correct.

The standard equation of a circle is (x-h)^2 + (y-k)^2 = r^2 where (h,k) is the center and r is the radius.

In your question the center is (-2,3) and the radius is the length of the line segment from the center to any pointon the circle.  nd hey, it tells us a point on the circle is (-2,6).

Let's take it one part at a time.  we know h and k so let's plug them in.

(x-h)^2 + (y-k)^2

(x-(-2))^2 + (y-3)^2

(x+2)^2 + (y-3)^2

now r is the length of the line segment from (-2,3) and (-2,6).  To get from (-2,3) to (-2,6) hopefully it is pretty obvious you just move up (so int he y direction) 3 spaces.  this makes r = 3.  int he formula we want r^2 and that is 9.  The result is that the circle has a formula of:

(x-h)^2 + (y-k)^2 = r^2

(x+2)^2 + (y-3)^2 = 9

The formula Juanita got is actually a hyperbola.  

8 0
1 year ago
A baker’s dozen (13) of cookies is on sale for $2.08.
poizon [28]
So taking this as if there are 13 dozens of cookies. First we do 13 times 12 which would be 156 cookies in total. Then 156 cookies times 2.08 is 324.48
4 0
1 year ago
Read 2 more answers
Graph the line y = kx +1 if it is known that the point M belongs to it: M(1,3)
tigry1 [53]

Answer:

M(x,y) = (1,3) belongs to the line y = 2\cdot x +1. Please see attachment below to know the graph of the line.

Step-by-step explanation:

From Analytical Geometry we know that a line is represented by this formula:

y=k\cdot x + b

Where:

x - Independent variable, dimensionless.

y - Dependent variable, dimensionless.

k - Slope, dimensionless.

b - y-Intercept, dimensionless.

If we know that b = 1, x = 1 and y = 3, then we clear slope and solve the resulting expression:

k = \frac{y-b}{x}

k = \frac{3-1}{1}

k = 2

Then, we conclude that point M(x,y) = (1,3) belongs to the line y = 2\cdot x +1, whose graph is presented below.

3 0
1 year ago
What is the unit price of 8 mugs for $38.32
jarptica [38.1K]

Answer:

4.79$ for each mug

Step-by-step explanation:

38.32/8 = 4.79 and to double-check do 4.79*8

8 0
1 year ago
Read 2 more answers
Other questions:
  • Compare partial products and regrouping. describe how the methods are alike and different
    12·2 answers
  • suppose marisol scored a 96% on an english test. There were 50 questions on the test. How many did marisol answer correctly?
    11·2 answers
  • What is the product? (5r − 4)(r2 − 6r + 4)
    13·2 answers
  • What is the 12th term in the sequence? Note: Use the explicit rule. an=−16+2n Enter your answer in the box.
    10·1 answer
  • What is the measure of YB?
    6·1 answer
  • Which of these groups of relative frequencies would be best represented by a pie chart?
    8·1 answer
  • An account is opened with $7,595.96 with a rate of increase of 2% per year. After 1 year, the bank account contains $7,746.90. A
    6·1 answer
  • A bank representative studies compound interest, so she can better serve customers. She analyses what happens when $2,000 earns
    13·1 answer
  • If m∠2 = 41°, m∠5 = 94°, and m∠10 = 109°, find each measure.
    9·1 answer
  • Point P is at the origin. Then Point P is moved 4 units to the right and 5 units up.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!