Ask question

Ask question

All categories

3 years ago

11

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen

t to x from the second guionis
Into the first equation
tud
3x +2y-21
x - 3y - 4

1 answer:

MArishka [77]3 years ago

8 0

Answer:

all work is shown and pictured

You might be interested in

The lengths of the sides of a triangle are x,x+1 and 7 centimeters and the perimeter of the triangle is 56 centimeters. The equa

____ [38]

Answer:

the longest side is 25

Step-by-step explanation:

the equation would be x+ x+1 + 7 for the 3 sides of the triangle

x + (x+1) + 7=56

combine like terms

2x+8 = 56

subtract 8 from each side

2x = 48

divide by 2

x = 24

the sides are

x=24

x+1 = 25

7

the longest side is 25

7 0

3 years ago

Find the number of liters in 12.8 gal of gasoline. Round to the nearest hundredths

masya89 [10]

Answer:

48.45

Step-by-step explanation:

7 0

3 years ago

A person on the top of a tall building looks through his binoculars at his friend that is 300 ft away from the building on the g

Gnesinka [82]

In this instance the distance will be the hypotenuse of a right angle triangle.
x = 300/sin30 = 600

They are 600 ft away from each other

4 0

3 years ago

How can you recognize when a pattern in real life is linear or nonlinear?

andreev551 [17]

Answer:

Step-by-step explanation:

If a table is linear, Y must change at a constant rate as X increases by 1. If a table is not linear, Y doesn't change at a constant rate at all. In fact, nonlinear tables don't even have an equation because there's no predicting what the Y-value is.

5 0

3 years ago

Read 2 more answers

Help a girl out ?? i'm not sure how to do the equation .

LekaFEV [45]

Answer:

Investment amount after 9 years = 14715.12$

Explanation:

It is given to use continuous change function, $A(t) = Pe^{rt}$

Here P = Principal = 10500$

r = Rate of increase = 0.0375

t = Number of years = 9

$A(t) = Pe^{rt}\\ \\ A(t) = 10500*e^{0.0375*9}=14715.12$

So, investment amount after 9 years = 14715.12$

6 0

3 years ago