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
Strike441 [17]
3 years ago
10

Find the value of x if the arithmetic mean of 3 and 3x+5 is 8?

Mathematics
1 answer:
mina [271]3 years ago
8 0

Answer:

1

Step-by-step explanation:

3x+5=8

Group like terms

3x=8-5

3x=3

Divide both side by the co-efficient of x which is 3

3x/3=3/3

x=1

You might be interested in
Karla rode her bicycle 135 miles in 9 weeks, riding the same distance each week. Brad rode his bicycle 102 miles in 6 weeks, rid
blsea [12.9K]

Answer:

Karla's 15 miles per week to Brad's 17 miles per week.

Step-by-step explanation:

First, we would need find the total number of miles each individual rides per week. We do this by dividing the total miles ridden by the number of weeks it took for each individual like so...

Karla:  135 / 9 = 15 miles per week

Brad:   102 / 6 = 17 miles per week

Finally, the comparison would be

Karla's 15 miles per week to Brad's 17 miles per week.

8 0
3 years ago
A projector enlarges an image in the ratio 20:1. What will be the size of an enlargement of a picture that is 8cm by 6cm?
nydimaria [60]

Answer:

160 cm × 120 cm

Step-by-step explanation:

this means 1 cm turns into 20 cm.

so, 8 cm × 6 cm becomes

8×20 = 160 cm × 6×20 = 120 cm

3 0
1 year ago
Heather wants to buy new carpet for her living room floor. The floor is in the shape of a rectangle. Its length is 19 feet and i
SCORPION-xisa [38]

Answer:

$2431

Step-by-step explanation:

wish u was Heather lol

┈┈┈┈▅┈┈┈┈┈▅ ┈┈

┈┈┈▕┈┈┈╱╲▕▀┈┈┈

┈┈┈╱╲┈┈▏▕╱╲┈┈┈

┈┈┈▏▕╱╲▏▎▏▕╱╲┈▃

┈╱╲▏▎▅▂▅▂▏▎▏▎▏▏

▂▏▎▏▕╭┳┳╮▏┊▏▕╱╲

▏▏┊▏▎┃┊┊┃▏▎▏▎▏▕

▇▆▅▃▂┻┻┻┻▂▃▅▆▇▉

6 0
3 years ago
Multiple choice plz help!! Thank u!
lord [1]
C your welcome have a nice day

5 0
3 years ago
Read 2 more answers
What happens to the diagonal of a rectangle when the rectangle is reflected across a line of symmetry? What does this suggest ab
SIZIF [17.4K]

When you reflect a diagonal over a line of symmetry, the diagonal will land perfectly on the other diagonal (and vice versa). This suggests that one diagonal is a mirror copy of the other.

Another way to put it: The vertex points of the rectangle will swap when we reflect over a line of symmetry. A diagonal is simply the opposite vertex points joined together. So this is why the diagonals swap places (because the vertices line up perfectly when you apply the reflection).

4 0
3 years ago
Other questions:
  • Solve for the indicated variable: ⅖(z + 1) = y for z.
    6·2 answers
  • A line passes through (2,-7)and (-3,3).Find the slope-intercept form of the equation of the line. Then fill in the value of the
    12·1 answer
  • The mean rate for cable with Internet from a sample of households was $106.50 per month with a standard deviation of $3.85 per m
    10·1 answer
  • What is three and one third divided by two aand one third?
    6·1 answer
  • Which number line best shows the position of square root of 7? Number line with numbers negative 4, negative 3, negative 2, nega
    15·2 answers
  • A board game uses a fair six-sided die and a spinner with five-equal sized sections colored dark blue, green, light blue, red, a
    10·1 answer
  • 4+2(8²×4²)+6+4+6+6+6+2+2​
    15·2 answers
  • What is 200 x 200? <br><br> im so stupid...
    6·2 answers
  • Harshdeep was playing basketball with his friends with seconds left before the game ended he attempted a 3 point shot the follow
    5·1 answer
  • H = 3 + 31t - 161²<br> Find all values of t for which the ball's height is 17 feet .​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!