Steps:
7w - 2 + w = 2(3w - 1)
6w - 2 = 6w - 2
Because both sides of the equation are equal, w = an infinite amount of solutions.
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Answer:
13 pizzas he bought
Step-by-step explanation:
315.50 - 127 = 188.50 then do 188.50 divided by 14.50 = 13
Hope this helps :)
Answer:
Step-by-step explanation:
%change=100(final-initial)/(initial)
%change=100(40-32)/32
%change=25%
Step-by-step explanation:
Iodine test for starch
Method:
Place one spatula of the food sample on a dish or 1 cm3 if the sample is liquid.
Using a dropper, place a few drops of iodine solution onto the food.
Record any change in the colour of the solution.
Starch is detected using iodine solution. This turns blue-black in the presence of starch.