Call Martha's age 5 years ago is x So Martha father's age five years ago is 7x
We have : 7x + 5 = 4(x + 5)
3x = 25+5=30 so x = 5 so Martha's present age is 10 and her's father's present age is 40
Brainliest?
Answer:
1) S
2) U
3) K
4) B
5) Q
6) H
7) T
8) D
=
9) -6,-8
10) -8, 5
11) -3, -8
12) -5, 1
13) 5, -3
14) 7, -1
15) 7, 2
16) -7, 8
Step-by-step explanation:
1... 8. (x, y) coordinates given to point out letter
9... 16. given letter to point out (x, y) coordinates.
17.. 19.. 21.. 23.. see attached image
Answer:
1/3
Step-by-step explanation:
gradient or slope = m
m = change in y ÷ change in x
= (-4 - -2) ÷ (-3 - 3)
= (-4 + 2) ÷ (-3 - 3)
= -2 ÷ -6
= 1/3
The solution to the system of equations is given as follows:
x = 1 and x = 3.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the two equations are:
Applying cross multiplication:
(x - 2)(x - 2) = 1
x² - 4x + 4 = 1
x² - 4x + 3 = 0
(x - 1)(x - 3) = 0
Hence the solutions are:
More can be learned about a system of equations at brainly.com/question/24342899
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