Step-by-step explanation:
So when a question asks what is x% of the y number. It's asking you to convert the x into decimal form by dividing by 100 and then multiply it by y. This gives you the equation: which gives you x% of y. so 15% of 43 is . 43% of 300 is .
the 12% of what number is 43 is a bit more tricky. It's asking you to instead find a number in which 12% of it is equal to 43. So instead of plugging solving for the percentage (which is already given) you solve for y. This gives you the following equation: . Now all you do is calculate 12/100 which gives you . now divide both sides by 0.12 to solve for y. This gives you
43 is what percent of 106? This question is also a bit tricky, but instead of solving for y, you're solving for x. So plug in the known values, which gives you the equation: . Divide both sides by 106 to get and now multiply both sides by 100. this gives you which is the answer 40.57%
What percent of 43 is 6. This is asking the same thing just in a different way. So percentage = unknown, entire number = 43, entire number * percentage = 6. With these values we get the equation: . Divide both sides by 43 to get now multiply by 100 to get which is the answer 13.95%
Answer:
AC = 3 cm
Step-by-step explanation:
sum the parts of the ratio, 2 + 1 = 3 parts, then
AC = × AC = × 4.5 = 2 × 1.5 = 3 cm
Answer:
x = 4
y = 6
Step-by-step explanation:
3x + 4y = 36
3x + 4(-1/2x + 8) = 36
3x - 2x + 32 = 36
x + 32 = 36
x + 32 - 32 = 36 - 32
x = 4
y = -1/2x + 8
y = -1/2(4) + 8
y = -2 + 8
y = 6
where m is the slope of the line and b is the y-intercept. Hope that helps
The 4 on the left side is 10x more than the 4 on the right. This only works if the numbers are next to each other and are the same.