If 80% is 72 marks, what is full marks?

Answers

Answer 1

Answer: $Use\ a\ proportion:\n\begin{array}{ccc}80\%&-&72\n100\%&-&x\end{array}\ \ \ |cross\ multiply\n\n\n80\cdot x=72\cdot100\n80x=7,200\ \ \ |diviede\ both\ sides\ by\ 80\n\boxed{x=90}\leftarrow your\ answer$

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2x + 3y = 15x + y = 6

Some help? Plz? I need some

Answers

Answer:

B=59

Step-by-step explanation:

59 is across from B so they are equal.

Answer:

b = 59

Step-by-step explanation:

b is located right across from the 59 degrees, and they are separated by the same 2 lines that make up their angles. Therefore causing them to have the same measurement, making b = 59

Hardcover books are on sale for 15% off. Louise has chosen a hardcover book that normally sells for $20.00. How much will Louise save? Explain your answer.

Answers

Answer:

$19.85

Step-by-step explanation:

$20-0.15=x$

$Switch\: sides$

$x=20-0.15$

$\mathrm{Subtract\:the\:numbers:}\:20-0.15=19.85$

$x=19.85$

Which multiplication has a negative answer?A) (-1)(-1)
B) (-1)(-1)(-1)(-1)
C) (-1)(-1)(-1)(-1)(-1)
D) (-1)(-1)(-1)(0)

Answers

The correct answer is D

i'm pretty sure it's C

-1 times -1 becomes positive, and then times -1 again, it's negative, and times it again, it's positive, and THEN one more time (lol) it's -1.

An object with a mass of 6.3 kg has a mass of 7.1newtons applied to it, what is the resulting acceleration of the object

Answers

Since, a = F (net) / m (net)
Therefore a = 7.1 / 6.3 = 1.13 m/sec^2

12.28 as a mixed number

Answers

12.28 is equal to 12 + 0.28. Since 0.28 is read as "twenty-eight hundredths", that's exactly how we write it in fractions: 28/100. Next, we need to simplify the fraction into its simplest form by looking for number that can be divided to both numerator and denominator. Hence, we have 12.28 = 12 + 28/100 = 12 + 7/25 = 12 7/25. Answer is 12 7/25.

Answer: 12 7/25

Just got this on khan and this was the right answer!

Domain is the set of all input values, while range is the set of all:

Answers

all output values. This is because the domain of a function is the set of all possible x-values that you will put into the equation while the range is the set of all possible y-values, the solution.

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Jim and Jackie are married with three children at home and a mortgage. Jim’s net pay per year is $67,000 and Jackie does not have income. Their mortgage payment of $2,800 includes insurance on their home. They have additional monthly expenses of $2,700.Jim contributes 15% of his earnings to a retirement fund and they have $5,000 in savings. There is a $500,000 life insurance policy on Jim and a $100,000 policy on Jackie. As their financial advisor, what part of Jim and Jackie’s financial plan would you encourage them to work on?

Get this question correct image attached

Ted weighs twice as much as Julie. Mike weighs three times as much as Julie. Together, Ted, Mike, and Julie weigh 210 lbs. What is the weight of each person?

What does it mean to cube something, thank you