Let n represent the amount Colin earned on Sunday.
On Sat. he earned n/2; on Sun. he earned n; and on Friday he earned (1/2)(n/2).
Then n/2 + n + n/4 = $70
Mult. all terms by 4 to eliminate fractions:
2n + 4n + n = $280
7n = $280 => n = $40
Colin earned n/2, or $20, on Saturday; n, or $40, on Sunday; and n/4, or $10, on Friday.
Note that $20 and $40 and $10 add up to $70, as they must.
5(2y-4) - 3y = 1. 10y-20-3y=1. 7y-20=1. 7y=21. y =3. x = 2(3)-4. x = 2. x*y =6.
Answer:
see explanation
Step-by-step explanation:
To express a proper fraction in decimal form.
Divide the numerator by the denominator, that is
22 ÷ 7 ≈ 3.1429 ( to 4 decimal places )
Reflection involves mirroring a point over a line.
<em>When L is reflected across the x and y axes, the new coordinates are (7,3)</em>
Given that:
When a point is reflected across the x-axis, the rule is:
So, we have:
When a point is reflected across the y-axis, the rule is:
So, we have:
Hence, the new coordinates of L are (7,3)
Read more about reflections at:
brainly.com/question/17983440
Answer:
sin A =cos B
Step-by-step explanation:
sin A =opp/hyp =BC/AB
cos B=adj/hyp = BC/AB
