Answer:
<h2>d. 10a + 5b</h2>
Step-by-step explanation:
5(a + a + b) = 5(2a + b)
use the distributive property:
<em>a(b + c) = ab + ac</em>
<em />
= 5 · 2a + 5 · b =10a + 5b
Answer:
22.6
Step-by-step explanation:
because in this one you are using cos , adjacent/hypotenuse
24cos20
x = 22.552622899
Answer:
The answer is 653.45
Step-by-step explanation:
Value of x=-225
Value of y=71.33
Explanation
:
2x/3-2x/5=-60 (1)
0.2x+0.9y=19.2 (2)
(2x*5-2x*3)/(3*5)=-60
(10x-6x)/15=-60
4x/15=-60
4x=15*-60
4x=-900
x=-900/4=-225
consider (2)
0.2x+0.9y=19.2
substitute the value of x in (2)
0.2*-225+0.9y=19.2
0.9y=19.2+45=64.2
y=(64.2)/(0.9)=71.33
Answer:
x=6 and y=0
Step-by-step explanation:
1. 15-3=12
2. 12÷2=6 6=x
3. 6-6=0 0=y