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
Anni [7]
2 years ago
10

sophia is 6 years older than her brother eric. the sum of their ages is 28. write and solve an equation to find sophia and Eric'

s ages
Mathematics
1 answer:
zimovet [89]2 years ago
6 0

s = 6 + e

s + e = 28

We can use this system of equations to find the exact values of s and e.

We have a current value of s, so we can find the exact value of e now.

e + e + 6 = 28

<em><u>Combine like terms.</u></em>

2e + 6 = 28

<em><u>Subtract both sides by 6.</u></em>

2e = 22

<em><u>Divide both sides by 2.</u></em>

e = 11

Now we have an exact value of e, and can solve for the value of s.

s = 6 + 11

s = 17

Sophia is 17 years old, and Eric is 11 years old.


You might be interested in
For the equation 2x - y = 1, if x = 0, then y = ?
Lostsunrise [7]

Answer:

y= -1

Step-by-step explanation:

(2) (0) − y = 1

0 + − y = 1

(−y) + (0) = 1

−y = 1

Step 2: Divide both sides by -1

Y = −1

8 0
1 year ago
−3 1/0−(−2 1/0)
lianna [129]
I believe it's "-1" hope I helped
4 0
3 years ago
A rectangle has a width of 46 centimeters and a perimeter of 208 centimeters. What is the rectangles length
alexdok [17]
208- ( 2* 46)= X
208- 92=2x
x=58

The length is 58cm.

Check by:
58*2 +46*2
116+92= 208
4 0
2 years ago
Which is equal to cos47°?
Murrr4er [49]

Which of these is equal to cos 47°?

a. cos 43°

b. sin 43°

c. tan 43°

d. cos 133°

B.....

cos (47°)= sin (90°-47°)=sin (43°) [complementary angles]

Answer B

7 0
2 years ago
5k - 7 &gt; 5k + 8<br> guys I really need help!!
kkurt [141]

Answer:

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • You buy bottled water in 12- packs that cost $3 each. If u drink 3 bottles per day , what is your cost per week?
    11·1 answer
  • Which equation has exactly one solution?
    9·2 answers
  • A company is paying a local radio station to run its commercials. The cost for running commercials is a one-time campaign fee an
    5·1 answer
  • It takes 41 minutes for 9 people to paint 9 walls.
    13·1 answer
  • I solved the equation but I can’t seem to answer the ordered pair correctly... (21, )
    9·1 answer
  • A store manager asks every 25th person to enter the store which sales they like the best. Which type of data collection method i
    15·1 answer
  • ralph has bought a variety of 35 donuts. one type costed $2.35 per donut while the other costed 1.75 per donut. he spent $69.05.
    14·1 answer
  • A cell phone plan charges $15 per month for 300 text messages. The plan charges eight cents for each additional text message. Yo
    10·1 answer
  • Please help me I will mark brainliest <br> Solve for X<br> 2 + 3.0-9=1-1+22<br> 1
    5·1 answer
  • What is an approximate solution to this equation? 4/x-5=√x+3+2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!