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
Vika [28.1K]
2 years ago
15

Solve the following equation. 14 + (2x + 7) = 9x x=​

Mathematics
1 answer:
Dvinal [7]2 years ago
3 0

Answer:

x=1

Step-by-step explanation:

14+2x+7=9x

2x-9x=7-14

-7x= -7

x= -7/-7

x=1

You might be interested in
Xác định phương trình hàm số cung và hàm số cầu
Aneli [31]

Answer:

????????????????????

7 0
2 years ago
A cargo grain leaves Chicago at noon travelling west at 120 km/h. At 2 pm, a passenger train leaves Chicago travelling east at 3
AfilCa [17]

Answer:

a) The trains will be 1520 km apart at 2:40 pm for the cargo train and at 4:40 pm for the passenger train.

b) At that time the cargo train has traveled 560.04 km and the passenger train has traveled 960.12 km.

Step-by-step explanation:

a) First, we need to find the distance traveled by the cargo train in the two hours before the passenger train leaves Chicago:

x_{1} = v_{1}t_{1} = 120 km/h*2h = 240 km                    

Now, we can find the time when the trains will be 1520 km apart:

1520 km = (x_{1} + 240 km) + x_{2}      

Where 1 is for the cargo train and 2 is for the passenger train.

1520 km = (v_{1}*t_{1} + 240 km) + v_{2}t_{2}      

Since we need to calculate the time when the trains are 1520 km apart, t₁ = t₂, so:

1520 km = (v_{1}*t + 240 km) + v_{2}t              

t = \frac{1520 km - 240 km}{120 km/h + 360 km/h} = 2.667h

For the cargo train, it will be 1520 km apart from the passenger train at:

t_{1} = 12 pm + 2 h + 40 min = 2:40 pm

And for a passenger train, it will be 1520 km apart from the cargo train at:

t_{2} = 2 pm + 2 h + 40 min = 4:40 pm  

Hence, the trains will be 1520 km apart at 2:40 pm for the cargo train and at 4:40 pm for the passenger train.  

b) The distance traveled by both trains is given by:

x_{1} = v_{1}*t + 240 km = 120 km/h*2.667 h + 240 km = 560.04 km    

x_{2} = v_{2}*t = 360 km/h*2.667 h = 960.12 km    

Therefore, at that time the cargo train has traveled 560.04 km and the passenger train has traveled 960.12 km.

I hope it helps you!        

5 0
2 years ago
The Taco Shop sold 198 lunches Friday. This number is 3 more than 3 times the number they sold Monday. Let n represent the numbe
scoundrel [369]
C
3 times Monday plus 3
4 0
3 years ago
PLZZ could someone help me out with this and explain
jenyasd209 [6]

Answer:

It would be D because X^2 is different from 3x you would just multiply X^2 by 1 and 3x by 1 to get x^2+3x

3 0
3 years ago
Read 2 more answers
Look at the model below which are true
OLga [1]

3(2+x)

open the parenthesis

= 6 + 3x

3(2+x) = 6 + 3x

Hence the statement of equality is true

H is the correct option

6 0
11 months ago
Other questions:
  • How do you subtract a whole number 3 from 1/3
    14·1 answer
  • The starting salaries of individuals with an mba degree are normally distributed with a mean of $40,000 and a standard deviation
    13·1 answer
  • Simplify 1/6(15a+20b)=
    14·1 answer
  • Which part of a pictograph provides an overview of the information in the chart?
    11·1 answer
  • The temperature doubled.
    6·2 answers
  • jasmine pet guinea pig gained8 ounces in one month.Write an integer to describe the amount of weight her pet gained
    7·1 answer
  • Please help 11/30-17/36
    7·1 answer
  • Answer this math question for 10 points
    11·1 answer
  • Evaluate: 5c + 7d - 5 for c = -2 and d=3
    12·2 answers
  • Mcm de 2,5,10,25 grupo de valores
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!