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
bonufazy [111]
3 years ago
8

Three is twenty-one, divided by the sum of a number and five

Mathematics
2 answers:
Ahat [919]3 years ago
6 0
3=21/(x+5)
Cross multiply
3(x+5)=21
Divide 3
X+5 = 7
Subtract 5
X= 2
Gnesinka [82]3 years ago
6 0
3=21/(x+5)
3(x+5)=21
3x+15=21
3x=6
x=2
You might be interested in
Silver scooter finds that it costs $300 to produce each scooter and the fixed costs are $750. The price is given by p=900-x, whe
Nady [450]
Cost = 300 x + 750 , where x is the number of the scooters;
Price = 900 - x
Profit = x ( 900 - x ) - ( 300 x + 750 ) =
= 900 x - x² - 300 x - 750 = - x² + 600 x - 750
d (Profit) = - 2 x + 600
- 2 x + 600 = 0
x = 600 : 2
x = 300
The company must produce 300 scooters to maximize the profit.
The maximum profit is:
- 300² + 600 · 300 - 750 = $89,250 
5 0
3 years ago
I need help thank you!<br> (7x + 14)<br> (15x - 4)
sergey [27]

Answer:

(7x + 14)° = 84°

(15x - 4)° = 146°

Step-by-step explanation:

62° + (7x + 14)° = (15x - 4)°

62° +7x + 14 = 15x - 4

15x - 7x = 62 + 14 + 4

8x = 80

x = 10

Therefore, exterior angle (15x - 4)° = 146°

                interior angle (7x + 14)° = 84°

8 0
3 years ago
5. 40 = }(9x + 30) + 2
Anvisha [2.4K]

Answer:

x=-16

Step-by-step explanation:

We are given with the equation

40=-\frac{1}{3} \times (9x+30)+2

We are asked to solve it for x.

Distributing \frac{1}{3} over bracket and simplifying

40=-(\frac{9x}{3}+\frac{30}{3})+2

40=-(3x+10)+2

40=-3x-10+2

40=-3x-8

Adding 8 on both sides

48=-3x

Dividing both sides by -3

x=-16

7 0
3 years ago
Can someone please help me!! Ive been asking for help and I not getting any.. please help
juin [17]
D, would the only one that is yes since the point of it is on 5 of the x axis
6 0
3 years ago
Read 2 more answers
Simplify.<br> 1/2 (x – 6) + 3/2 (x + 2)<br> 2x + 6<br> 2x<br> 2x-4<br> 2x + 3
pochemuha
Answer: B 2x

1/2x-3+3/2x+3
7 0
3 years ago
Other questions:
  • What is the slope? 0 or undefined
    9·1 answer
  • Solve the following system of equations for X..
    12·2 answers
  • Identify the pattern.Write the next 3 terms in each sequence. 83,75,67,59...
    8·2 answers
  • (x-y)²-(x+y)² a)0 b)2y² c)-2y² d)-4xy e)-2(x+y)²
    13·2 answers
  • A block of wood has a mass of 6.0 g and a volume of 12.0 cm^3 . What is the density of the block of wood?
    8·1 answer
  • 42 is increased to 63<br> What is the percent increase?<br> SUPER EASY AND URGENT!
    7·2 answers
  • Of the pupils in Year 9 say their favourite colour is red. .
    15·1 answer
  • Find the value of x, please help
    9·1 answer
  • The area of a floor of a cargo truck is 22 1/2 square feet. What is the volume of the storage space, in cubic feet, of the truck
    8·1 answer
  • Find the value of x this is geometry
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!