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blsea [12.9K]
2 years ago
7

Celia needs 75% of the marks in an exam to pass. She gets 4/5 of the marks. Does she pass the course? Show your working to justi

fy your answer
Mathematics
2 answers:
goldfiish [28.3K]2 years ago
6 0

Answer:

Yes

Step-by-step explanation:

First lets establish the key points

We know she needs 75% to pass and she gets 4/5 of the marks

Lets make 4/5 a decimal 4/5 X 2/2 is 8/10 better know as .8

.75 = 75%

.8 = 80%

80% > 75%

Meaning She PASSED!!!

kari74 [83]2 years ago
5 0

Answer:

Yes, she passes with 80%

Step-by-step explanation:

4 divided by 5 = 0.8

0.8 multiplied by 100 = 80%

80% is greater than the required 75% needed to pass

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In the accompanying diagram of circle O, chords AB and CD intersect at E. If AE = 4, EB = 9, and CE = 6, what is the length of E
rjkz [21]

Answer:

ED=6\ units

Step-by-step explanation:

we know that

The i<u><em>ntersecting chords theorem</em></u> is a statement that describes a relation of the four line segments created by two intersecting chords within a circle. It states that the products of the lengths of the line segments on each chord are equal

so

In this problem

(AE)(EB)=(CE)(ED)

substitute the given values

(4)(9)=(6)(ED)

solve for ED

ED=36/6\\ED=6\ units

8 0
3 years ago
Now answer the question:
Savatey [412]

Answer:

y = 10

Explanation:

a = apples

b = bananas


the a is equal to 1.5, the b is equal to .3

so it's 2a + xb = 6

(2 x 1.5) + (y x 0.3) = 6

3 + (y x 0.3) = 6

y x 0.3 = 3

so the way we get the answer here, we remove the 0.3 from the side that has the number we're looking for. to do that, we put it on the side with the number we know

with addition problems, you just add or subtract from one side and do the same to the other.

with multiplication, we need to divide one side and multiply by the other.

all the dividing we're doing here will be changing the number with the y to be basically not there

but they'd probably have it written as 0.3y = 3

and the way we sometimes show division, is with the / symbol, so to get this, it would be (0.3y/0.3) = 3 once again, parenthesis just to keep it separate and to try and prevent confusion. you remove the 0.3 from one side and put it on the other by doing the same thing to each side

so it's currently (0.3y/0.3) = 3/0.3s
3 divided by 0.3 comes out to 10

so the answer ends up being y = 10

4 0
3 years ago
What is the sum of the polynomials?<br> (m + n + 3) + (m + n + 4)
Ainat [17]

Answer:

i honestly dk but need help

Step-by-step explanation:

ls

4 0
3 years ago
Read 2 more answers
50 + 2x = 100<br> What is x?
max2010maxim [7]

Answer:

x = 25

Step-by-step explanation:

50 + 2x = 100

=> 2x = 50

=> x = 25

Hoped this helped.

4 0
2 years ago
Read 2 more answers
What is the slope of the line through (-1,4) and (5,2)
butalik [34]

Answer:

Slope (m) = -\frac{1}{3}

Step-by-step explanation:

Use the following equation:

Slope (m) = \frac{y_2 - y_1}{x_2 - x_1}

Let:

(x_1 , y_1) = (-1 , 4)\\(x_2 , y_2) = (5 , 2)

Plug in the corresponding numbers to the corresponding variables:

m = \frac{2 - 4}{5 - (-1)} = \frac{2 - 4}{5 + 1} = \frac{-2}{6}

Simplify. Divide common factors from both the numerator and denominator:

\frac{(-\frac{2}{6})}{\frac{2}{2} } = -\frac{1}{3}

-\frac{1}{3} is your answer.

~

8 0
3 years ago
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