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
RoseWind [281]
2 years ago
9

2. All of the girls in Danielle’s cabin at camp are the same age. Their counselor is 3 times their age. Danielle’s age and her c

ounselor’s ages add up to 28. Write and solve an equation that can be used to find the ages of Danielle and her counsel
Mathematics
1 answer:
Aloiza [94]2 years ago
4 0

Answer:

Danielle is 7 and her counselor is 21

Step-by-step explanation:

Let x be the age of Danielle and y be the age of her counselor then:

y=3x

x+y=28

We can solve this using substitution. In this case, substitute 3x for y since y=3x...

x+3x=28

   4x=28

Divide both sides by 4 (division property of equality)

x=7

y=3x=3(7)=21

Danielle is 7 and her counselor is 21

You might be interested in
A gift basket that contains jars of jam and packages of bread mix costs $45. There are 8 items in the basket. Jars of jam cost $
castortr0y [4]
The equation you had:
6x + 5y = 45

Solve for Y:
5y = (-6x)    + 45 divide by 5
y   = (-6/5)x + 9
y   = -1 1/5x +9


4 0
3 years ago
Read 2 more answers
Which expression is equivalent to the square root of 1/8
irina1246 [14]
When you say "which," it sounds like it should be multiple choice. Anyways, here's the simplified form of \sqrt{\frac{1}8}}

\sqrt{\frac{1}8}} = \frac{\sqrt{1}}{\sqrt{8}} = \frac{1}{\sqrt{8}} * \frac{\sqrt{8}}{\sqrt{8}}=\boxed{\frac{\sqrt{8}}8}

(When simplifying fractions, you should <em>never</em> have a square root on the bottom. Multiply by the square root to cancel it out)
4 0
3 years ago
Write the equation of the line parallel to y=3x-2 that passes through (3, 2) in point-slope form
AleksandrR [38]
Substitute the x and y values from (3,2).

Formula: y=mx+b

2= 3(3)+b
2-9= -7

y=3x-7
5 0
3 years ago
What is the product of 3 2/3 and 14 2/5
Anarel [89]
Rounding I Got 52.7.
8 0
3 years ago
11x - 2x + 15 = 8 + 7 + 9x<br> Help please
sergey [27]

Answer:

15 it's in the equation

Step-by-step explanation:

11x-2x=9x  9x-9x=0

7+8=15

8 0
3 years ago
Read 2 more answers
Other questions:
  • Write an equation in point-slope form for the line that has a slope of 5/6 and contains the point (−8, −4) Help ASAP!!
    11·1 answer
  • Please help me with this one
    9·1 answer
  • Φ is a subset of {1, 2, 3, 4, 5, 6}<br><br> True or False
    12·1 answer
  • Kay has $15 more than kim. Together they have $55. How much does each person have
    14·1 answer
  • The circle described by the equation (x 2)2 + (y + 5)2 = 16 is translated 4 units to the left and 1 unit up. At what point is th
    12·1 answer
  • Please answer <br><br> Select the correct answer.<br> What is the domain of function ?
    14·2 answers
  • A rectangle measures 2 <br> 1<br> 2<br> meters by 1 <br> 3<br> 4<br> meters. What is its area?
    11·1 answer
  • THIS IS 30PTS. help fast
    9·2 answers
  • A baseball player gets 16 hits in 40 at bats. What percent of his at bats did not result
    5·1 answer
  • Should the United States return to a gold standard? Why?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!