Answer:
(1, 1 )
Step-by-step explanation:
Given the 2 equations
2x + 3y = 5 → (1)
7x - 5y = 2 → (2)
Multiplying (1) by 5 and (2) by 3 and adding will eliminate the y- term
10x + 15y = 25 → (3)
21x - 15y = 6 → (4)
Add (3) and (4) term by term to eliminate y
31x = 31 ( divide both sides by 31 )
x = 1
Substitute x = 1 into either of the 2 equations and evaluate for y
Substituting into (1)
2(1) + 3y = 5
2 + 3y = 5 ( subtract 2 from both sides )
3y = 3 ( divide both sides by 3 )
y = 1
Solution is (1, 1 )
You can't use the distributive property on the numbers 48 and 72 because the numbers aren't in an equation.
Jeremy's height is 67.2 inches
The diagram below represents situation
<h3>Proportion</h3>
Proportion says that two ratios (or fractions) are equal. This a mathematical comparison between numbers.
Therefore, let's establish the proportion in this situation
- Malik height / Malik shadow = Jeremy height / Jeremy shadow
Therefore,
cross multiply
72 × 56 = 60x
60x = 4032
divide both sides by 60
x = 4032 / 60
x = 67.2
Therefore, Jeremy's height is 67.2 inches
learn more on proportion here: brainly.com/question/26258657
1/3 of $120.00 is $40.00, therefore the sale price will be $80.00 :-) xxx
The answer is (2,6)
X:2
Y:6