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2 years ago

Use substitution to solve the system of equations.. PLEASE ANSWER AND EXPLAIN..asap

Mathematics

2 answers:

Leya [2.2K]2 years ago

4 0

Answer:

the answer to number one is (13.3,2)

the answer to number two is (2,-2)

Step-by-step explanation:

Nataliya [291]2 years ago

4 0

1. -5+y=-3
3x-8y=24

5+2=-3
3x40/3 -8x2 =24

-3=-3
24=24
(x,y) = (40/3, 2)

2. -3x-4y=2
x+2y=-2

-3(-2-2y) -4y=2
y=2

x=-2-2x(-2)
x=2

(x,y) (2.-2)

-3x2-4x(-2) =2
2+2 x(-2) =-2
2=2
-2=-2
(2,-2)
hope this helps:)

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2 years ago

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horsena [70]

ANSWER

$d = - ab + c$

EXPLANATION

The given expression is

$ab = c - d$

To find an expression for d in terms of a, b, and c, means we want to make d the subject of the relation.

This means that, we need to isolate d on one side of the equation while all other terms are on the other side.

We subtract from both sides of the equation to obtain,

$ab - c = - d$

We now divide through by -1, to get,

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3 years ago

Please Help me with this problem!!! ASAP

castortr0y [4]

The average rate of change is -5 per month

<h3>How to determine the average rate of change?</h3>

The interval is given as:

July to December

From the graph, we have:

July = 110

December = 30

The average rate of a function over the interval (a, b) is calculated as:

Rate = [f(b) - f(a)]/[b - a]

So, we have:

Rate = (30 - 110)/(December- July)

This gives

Rate = (30 - 110)/(12 - 7)

Evaluate

Rate = -16

Hence, the average rate of change is -5 per month

Read more about average rate of change at:

brainly.com/question/23715190

#SPJ1

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1 year ago