MATHEMATICS MIDDLE SCHOOL

The product of -3/4 and a number x is -27

Answers

Answer 1

Answer:

Answer:

-3/4*x=-27

-3/4*36=-27 or

-0.75*36=-27

check me if you don't believe me

Step-by-step explanation:

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Find the slope and y-intercept of the line through the points (-3,-4) and (0,-1)

Answers

Answer:

Slope=1, y-intercept=-1.

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-1-(-4))/(0-(-3))

m=(-1+4)/(0+3)

m=3/3

m=1

y-(-4)=1(x-(-3))

y+4=x+3

y=x+3-4

y=x-1

y=mx+b where m=slope and b=y-intercept

so you have slope of 1 and y-intercept of -1

The recommended daily amount of vitamin C for children 9 to 13 years old is 45 mg. A serving of a juice drink contains 60% of the recommended amount. How much vitamin C does the juice drink contain?THE BEST ANSWER WOULD GET 20 POINTS

Answers

Answer:

The juice drink contains 27mg of vitamin C.

Step-by-step explanation:

Since the recommended daily amount of vitamin C for children 9 to 13 years old is 45 mg, and a serving of a juice drink contains 60% of the recommended amount, in order to know how much vitamin C does it contain we have to do the following calculation:

45 / 100 x 60 = Vitamin C contained by the juice drink

0.45 x 60 = Vitamin C contained by the juice drink

27 = Vitamin C contained by the juice drink

The juice drink contains 27mg of vitamin C.

So basically, you have to find 60% of 45. You do this by multiplying 45 and 0.6. 0.6 because you have to move the decimal point twice. after multiplying, you would get an answer of 27 and the answer is 27 mg

Carlos has 30 yards of plastic fencing to set up for a track meet he uses 85 feet of fencing how much fencing does he have left

Answers

There's 90 feet in 30 yards so 90 - 85 is 5

The first thing you need to know is that 1 yard = 3 feet. Therefore if he had 30 yards he had 90 feet of plastic fencing. From there all you have to do is take the 90 feet he has and subtract 85 feet he uses. That means Carlos has 5 feet of fencing left.

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