The purity of gold is measured in? karats, with pure gold being 24 karats. other purities of gold are expressed as proportional parts of pure gold. thus? 18-karat gold is 18/24? , or? 75% pure? gold; 12-karat gold is 12/24? , or? 50% pure? gold; and so on. how much 16? -karat gold should be mixed with pure gold to obtain 80 grams of 20? -karat ? gold?

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

answer: the answer is one

step-by-step explanation:

pemdas, in this situation there is no parenthesis or exponents so you go to multiplication, 1x1=1, then division 1/1= 1 then addition 1+1=2 then subtraction 2-1=1