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Bezzdna [24]
3 years ago
11

If 80 percent is 72 marks what is full marks

Mathematics
1 answer:
Greeley [361]3 years ago
8 0
100 - 80 = 20
80 = 72
20 = ?
72 / 80 = 0.9
20 x 0.9 = 180
180 + 72 = 252
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Which of the following is the equation of the line that is parallel to y=35x+8 y = 3 5 x + 8 and goes through point (-10,4)?
xeze [42]

Slope-intercept form of a line is y=mx+b.

Where m= slope and b= y-intercept.

First step is to compare the given equation y=35x+8 with the above equation to get the value of m.

After comparing the two equations we will get m=35.

Slope of paralle lines always equal which means slope of a line which is parallel to the above line will also be 35.

Now the line is passing through (-10,4).

Point slope form of a line is :

y-y_{1} =m(x-x_{1} )

Next step is to plug in m=35, x1=-10 and y1=4 in the above equation. So,

y-4=35(x-(-10)

y-4=35(x+10)

y-4=35x+350

y=35x+350+4

y=35x+354.

So, the equation of the line is y=35x+354.

4 0
3 years ago
Need answer to. Add 3x-3and4x^2-6x
Dahasolnce [82]
3x-3+4x^2-6x
4x^2-6x+3x-3 (arrange them in order)
4x^2-3x-3

do u want  more simplified form ?
7 0
3 years ago
At this point I’m just gonna post all the questions so stay online. y’all are so smart. 2 more to go! Xoxo <3
spayn [35]

Answer:172.5

Step-by-step explanation:Xoxo

8 0
3 years ago
Can someone help me with this?
Roman55 [17]

Answer:

Step-by-step explanation:

We first need to figure out how much money Jackie has since Pilar has the same amount of money, but in different coins. Jackie has 24 dimes and 13 quarters, so the amount of money is $2.40 + $3.25 = $5.65; therefore, Pilar has $5.65 also. In order to determine how many nickels and quarters Pilar has, we have to have a system of equations. It's up to us to write the equations we need to solve this. The first equation has to do with the NUMBER of coins Pilar has, the second has to do with the VALUE of each coin. We know that Pilar has only nickels and quarters and that she has a total of 53 coins. So the NUMBER equation is

n + q = 53

The VALUE equation relates how much each coin is worth to the total amount of money it equals:

.05n + .25q = 5.65.

Go back to the first equation and solve it for either n or q. I solved it for n:

n = 53 - q

Plug this into the second equation in place of n now to get:

.05(53 - q) + .25q = 5.65 and

2.65- .05q + .25q = 5.65 and

.20q = 3 so

q = 15. This means that there are 15 quarters. If there are 15 quarters, then there are

n + 15 = 53 nickels and

n = 38 nickels.

7 0
2 years ago
Find the quotient of 2. 5 × 10-3 and 7. 1 × 106. What can be concluded about the solution? Check all that apply. The E indicates
Elza [17]

The value of the expressions (2.5 × 10⁻³) and (7.1 × 10⁶) in scientific notation is 3.5211 × 10⁻¹⁰. Then the correct option is B.

<h3>What is division?</h3>

The division means the separation of something into different parts, sharing of something among different people, places, etc.

The expressions are 2.5 × 10⁻³ and 7.1 × 10⁶.

We have to divide 2.5 × 10⁻³ from 7.1 × 10⁶.

\dfrac{2. 5 * 10^{-3} }{ 7. 1 * 10^6}\\\\3.5211 * 10 ^{-10}

The value of the expressions (2.5 × 10⁻³) and (7.1 × 10⁶) in scientific notation is 3.5211 × 10⁻¹⁰. Then the correct option is B.

More about the division link is given below.

brainly.com/question/369266

5 0
2 years ago
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