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
Korvikt [17]
3 years ago
10

What does this equal? 3(x+5)=7-x

Mathematics
2 answers:
Stolb23 [73]3 years ago
4 0
3x+15 = 7-x
3x+ x = 7-15
4x = -8
x = -8/4
x = -2
True [87]3 years ago
3 0
3(x+5)=7-x3x+15=7-x4x=-8x=-2
You might be interested in
6 m
dimulka [17.4K]

Answer:

51.63m^3

Step-by-step explanation:

The figure is made up of a rectangle, triangle and a semi circle

Area of the figure = Area of triangle + rectangle + semicircle

Area of the triangle = 1/2 * base * height

Area of the triangle = 1/2 * 3 * 5

Area of the triangle = 15/2

Area of the triangle = 7.5m^3

Area of the rectangle = Length * Width

Area of the rectangle = 6 * 5

Area of the rectangle = 30m^2

Area of the semicircle = πr²/2

Area of the semicircle = π(3)²/2

Area of the semicircle = 3.14(9)/2

Area of the semicircle = 3.14 * 4.5

Area of the semicircle = 14.13m^2

The area = 30 + 14.13+7.5

Area of the figure = 51.63m^3

7 0
3 years ago
Read 2 more answers
Three balls are packaged in a cylindrical container as shown below. The balls just touch the top, bottom, and the sides of the c
lord [1]

Answer:

a. 5177 cm³

b. 3,451 cm³

c. 67%

Step-by-step explanation:

Given:

Diameter of each ball (d) = 13 cm

Radius of the ball (r) = radius of the cylinder = ½(13) = 6.5 cm

Height of the cylinder (h) = the sum of the diameters of the 3 balls = 3(13) = 39 cm

a. Volume of cylinder = πr²h

Plug in the values

Volume of cylinder = π*6.5²*39 = 5176.56 ≈ 5177 cm³

b. Total volume of the three balls = 3(volume of 1 ball) = 3(volume of sphere) = 3(⁴/3πr³)

Plug in the value

Total volume of the 3 balls = 3(⁴/3*π*6.5³) = 3(1150.35) = 3,451.05 ≈ 3,451 cm³

c. % of volume of the container occupied by the 3 balls = total volume of the three balls / volume of cylinder × 100

Plug in the values

= 3,451/5177 × 100

= 66.6602279

≈ 67%

6 0
3 years ago
Five friends are leaving a bar for home. Aside from the owner of the car, one other person is deemed able to operate the vehicle
erastova [34]

Answer:

4

Step-by-step explanation:

one person is deemed to drive and that person is fixed on the driver's seat no mater which arrangement.

we have now 2 more seats one adjacent to the driver and one rear (two combined).

so the total ways in which all five can be arranged is as follows.

driver, adjacent to him(1)  and three back.

driver adjacent to him (different person) and three back.

see the driver is always fixed so we can ignore him.

thus we when driver set fixed , on two remaining seats (adjacent to driver and the back )there can be 4 different combinations.

3 0
3 years ago
Which expression gives the x-coordinate of the solution of the system?
aalyn [17]
To find the the expression that gives the value of x we are going to proceed as follows: 
5x+3y=-18 equation (1)
2x-4y=-28 equation (1)

Step 1. solve for y in equation (2)
2x-4y=-28
-4y=-28-2x
y= \frac{-28-2x}{-4}
y=7+ \frac{1}{2} x equation (3)

Step 3. Replace equation (3) in equation (1) and solve for x
5x+3y=-18
5x+3(7+ \frac{1}{2} x)=-18
5x+21+ \frac{3}{2} x=-18
\frac{13}{2} x=-39
x= \frac{-39(2)}{(13)}
x=-6

We can conclude that the expression that gives the value of x is: x=-6
7 0
3 years ago
In one full day, 108 gallons of water seep into a pond. At this same rate, how many gallons will seep into the pond in 60 hours?
Alika [10]

Answer:

270

Step-by-step explanation:

108 divided by 24 is 4.5. 4.5 is how many gallons per hour. then, 4.5 times 60 equals 270.

6 0
3 years ago
Other questions:
  • IF A SUBSCRIPTION IS $499 PLUS 8% TAX FOR 30 DAYS, BUT IS BEING PRORATED FOR 7 DAYS, PLUS THERE IS A $10 OFF COUPON, WHAT'S THE
    13·2 answers
  • $27 for 12 avocados HELP ME PLZ 14 POINTS
    5·1 answer
  • At the sewing store ashly bought a bag of mixed buttons she got 25 buttons in all 5 of the buttons were large what percentage of
    11·2 answers
  • Help again please ..
    7·1 answer
  • Which ratio is equivalent to 3/15
    7·1 answer
  • A smaller number is 3 less than half a larger number. The larger number is 10 times 1 less than the smaller number. Let x repres
    11·2 answers
  • Which point on the coordinate plane is closest to ______ ?
    15·2 answers
  • Round to the underlined place​
    14·2 answers
  • What is the value of the 7 in the number 2 741 203<br><br> give your answer in number
    7·1 answer
  • PLEASE HELP Christine walks 0.5 miles around the lake in 10 minutes.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!