Answer:
(a) 
(b) 
Step-by-step explanation:
Given
Solving (a): Multiply equation by 5.
Multiply both sides by 5
Open bracket
(b) Solve for y in and
Subtract 10x from both sides
Divide both sides by 35
Factorize the numerator:
Express 35 as 7 * 5
<em>When </em><em> is solved, the solution will be: </em><em></em>
You have to choose 1 sort of cheese from 3 ( 3 ways ). Also you have to choose 3 toppings from 12 different toppings:
12 * 11 * 10 = 1,320 ways.
In total: 3 * 1,320 = 3,960
Answer:
In 3,690 ways can pizza be made with 1 cheese and 3 toppings.
<span>–6(x – 2y) when x = –3 and y = –5
so
</span><span>–6(x – 2y)
= </span><span>–6(-3 – 2(-5))
= -6(-3 + 10)
= -6(7)
= -42
answer
</span><span>A. -42</span>
Option I
(3x+4)cm =(2x+10)cm
3x-2x=6
x=6
Option II
(3x+4)= (x+12)
3x-x=12-4
2x=8
x=4
Option III
(2x+10)= (x+12)
2x-x=12-10
x=2
8÷2/7
8/1÷2/7
8/1*7/2
56/2
28
Hope this helps :)
