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
morpeh [17]
3 years ago
13

Helpppppp please find the value of x

Mathematics
1 answer:
snow_tiger [21]3 years ago
3 0

Answer:

48 + 87 + 20x - 10 = 180

125 + 20x = 180

20x = 55

x = 2.75

45 + 48 + 87 = 180

You might be interested in
Christian opened a savings account with $3250. His account will earn 5.2% simple interest.
harina [27]

Answer:

$4,264.00

Step-by-step explanation:

6 0
3 years ago
Five years ago, Tom was one third as old as his father was then.In 5 years, Tom will be half as old as his father will be then.
sleet_krkn [62]

Answer:

The father is 35years old and the son Tom is 15years old

Step-by-step explanation:

Let the father's be y

Let Tom's age be T

5 years ago:

The father's age is: y — 5

Tom's age:

T— 5.

But Tom's age was one third the father's age. This is written as:

T — 5 = 1/3(y — 5)

3(T — 5) = y — 5

3T — 15 = y — 5

3T — y = — 5 + 15

3T — y = 10 (1)

In 5years time:

The father's age is:

y + 5

Tom's age:

T + 5

But in 5years time, Tom will be half as old as his father. This is written as:

T + 5 = 1/2(y + 5)

2(T + 5) = y + 5

2T + 10 = y + 5

2T — y = 5 — 10

2T — y = — 5 (2)

Therefore, the equations are

3T — y = 10 (1)

2T — y = — 5. (2)

Solving by elimination method:

Subtract equation (2) from (1)

3T — y = 10

— (2T — y = — 5)

T = 15

Substituting the value of T into equation (1)

3T — y = 10

3(15) — y = 10

45 — y = 10

45 — 10 = y

y = 35

Therefore,

The father is 35years old and the son Tom is 15years old

5 0
4 years ago
Rectangle ABCD has vertex coordinates A(1, -2), B(4, -2), C(4, -4), and D(1,
mamaluj [8]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
-7t^2 – 2t + 9 = 0<br> pls solve using any method!
Aneli [31]
-7t^2 - 2t + 9 = 0\\&#10;-7t^2+7t-9t+9=0\\&#10;-7t(t-1)-9(t-1)=0\\&#10;-(7t+9)(t-1)=0\\&#10;t=-\dfrac{9}{7} \vee t=1
8 0
4 years ago
Solve 3(y+2)+3x squared <br> X=5, y=8
Savatey [412]
I'm sorry my friend but I need as much help as you do I'm just answering this so I can get some help sorry
4 0
3 years ago
Other questions:
  • Find the diameter of a circle with and area of 90.25 pi m square
    14·1 answer
  • A circuit is supplied with 24 volts and its load offers a total resistance of 400 ohm. What’s the total circuit power?
    6·1 answer
  • Compute the amount of interest earned in the following simple interest problem.
    13·1 answer
  • The pH scale measures a solution's acidity or alkalinity. The pH scale runs from 0 to 14, with 0 being the most acidic and 14 be
    7·1 answer
  • The graph shows the prices, in dollars, of different numbers of pies at Erik's store. The table shows the prices, in dollars, of
    10·1 answer
  • Help me with this math problems Plzz!<br> See the picture
    5·2 answers
  • what is the volume of this composed figure 4 in w 2 inch side width 1 inch back width 1 inch top width 3 in length
    5·1 answer
  • Juan deposited $450 in an account that earned 7.5% simple interest.
    5·2 answers
  • Find the distance between the following two points: (-1, -2) and (-1, 3)
    10·2 answers
  • So in math class we are doing Simplifying Algebraic Expressions or at least that is what the lesson is called but what is 7x +7.
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!