An expression consists of variables , constants and mathematical operators , when equated by any other algebraic expression or a constant it becomes an equation.

The equation given in the question is

(x + 1)/2 -(y+4)/11 = 2

(x+3) /2 + (2y+3)/17 = 5

It has to be solved for x and y ,

The simplification of the equation has to be done

and the equation is

11x-2y = 41 -----------1

and

17x +4y = 113 -------------------2

to find the solution elimination method will be followed as

Multiplying equation 1 by 2 and adding the both equations

39x = 195

x = 5

Substituting this value in equation 1

55 -2y = 41

y = 7

The value of x and y is 5 , 7

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3 0

2 years ago

a Maps key shows that every of 5 inches on the map represents 200 miles of actual disc suppose the distance between the between

Colt1911 [192]

5 inches = 200 miles
7inches=x-miles
5/20=7/×
5x=200 (7)
5x=1400
1400÷5=280
x=280
280-200=80
80=the distance between the two cities

7 0

3 years ago

1. Johnny typically drives his truck between 250 and 300 miles a day for work. Last week he worked 5 days and drove a total of 1

Schach [20]

Hey I’m in class but it is fine to help a friend so that answer is 1350

5 0

3 years ago

Read 2 more answers

The battalion covered 20 kilometers in 4 hours through the marsh. When the terrain changed, their speed was tripled. How many ki

mariarad [96]

Brainliest pls?

Answer:

They could cover 90 kilometres in 6 hours, after the terrain changed.

Step-by-step explanation:

Their speed, when they were traversing through the marsh, is:

speed = distance/time

s = 20 km / 4hr

s = 5 kmph

If their speed tripled, then it will be: 5*3 = 15 kmph

distance = speed * time

d = 15 km/h * 6h

d = 90 km

They could cover 90 kilometres in 6 hours, after the terrain changed.

6 0

3 years ago