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3 years ago

I GIVE BRAINLIESTY FOR CORRECT

Mathematics

2 answers:

marusya05 [52]3 years ago

7 0

Answer:

Ali is 72%

Zain is 64%

Ahmed scored 73%

So Ahmed Scored more

Step-by-step explanation:

ella [17]3 years ago

4 0

Answer:

Ahmed

Step-by-step explanation:

Ali scored 18 out of 25. 18/25 = 0.72. 0.72 as a percentage is 72%

Same with Zain, but he he scored like around a 64. So the highest one would be Ahmed.

You might be interested in

Can 1.31 be a probability

m_a_m_a [10]

If it is always a decimal, than it will always be a probability.

7 0

4 years ago

Prove the sum of three consecutive is divisible by three, that the sum of 5 consecutive integers is divisible by 5, but the sum

iren2701 [21]

Answer:

Proved

Step-by-step explanation:

Solving (a):

Let the numbers be: $x, x + 1, x + 2.$

Their sum is:

$Sum = x + x + 1 + x + 2$

Collect Like Terms

$Sum = x + x + x + 1 + 2$

$Sum = 3x + 3$

Divide sum by 3.

$Result = \frac{Sum}{3}$

$Result = \frac{3x+3}{3}$

$Result = \frac{3(x+1)}{3}$

$Result = x + 1$

Hence, this is true because there is no fractional part after the division

Solving (b):

Let the numbers be: $x, x + 1, x + 2,x+3,x+4$

Their sum is:

$Sum = x + x + 1 + x + 2+x + 3 + x + 4$

Collect Like Terms

$Sum = x + x + x + x + x+1 + 2 + 3 + 4$

$Sum = 5x+10$

Divide sum by 5.

$Result = \frac{5x + 10}{5}$

$Result = \frac{5(x + 2)}{5}$

$Result = x + 2$

Hence, this is true because there is no fractional part after the division

Solving (c):

Let the numbers be: $x, x + 1, x + 2,x+3$

Their sum is:

$Sum = x + x + 1 + x + 2+x + 3$

Collect Like Terms

$Sum = x + x + x + x + 1 + 2 + 3$

$Sum = 4x+6$

Divide sum by 4.

$Result = \frac{4x + 6}{4}$

Split

$Result = \frac{4x}{4} + \frac{6}{4}$

$Result = x + 1.5$

The 1.5 means that the sum can not be divisible by 4

5 0

3 years ago

Betsy, a recent retiree, requires $6,000 per year in extra income. She has $70,000 to invest and can invest in B-rated bonds pay

viva [34]

Answer:

The amount of money invested at 13% is $39,000 while the amount of money invested at 3% is $31,000

Step-by-step explanation:

Extra income required per year $6,000

Total investment = $70,000

Let x = amount of money Invested at 13% ;

Then 70,000 - x = amount of money Invested at 3%

Total interest required = $6,000

Thus;

x × 0.13 + (70,000 - x) × 0.03 = 6,000

⇒ 0.13x + 2100 - 0.03x = 6,000

0.13x - 0.03x + 2100 = 6,000

0.1x = 6,000 - 2100

0.1x = 3,900

x = 3,900/0.1

x = $39,000

Thus, what this means is that the amount of money invested at 13% is $39,000 while the amount of money invested at 3% is $70,000 - $39,000 = $31,000

PS ; IN CASE YOU ARE WONDERING WHERE 1.3 AND 0.3 CAME INTO THE CALCULATION, 13% IS (13/100 = 0.13) WHILE 3% IS (3/100 = 0.03)

8 0

3 years ago

What are the x- and y- intercepts of the graph of 9x-3y = 18?

sineoko [7]

Step-by-step explanation:

9x - 3y = 18

Solve for y:

1. 3y= 9x + 18

2. y= 3x + 6 (This is the equation you will graph)

To graph:

Make a table for y = 3x +6.

If x =0, y=6

If x =1, y=9

If x =-1, y=3

You could get as many points as you like, however you need at least TWO, to be able to draw the line.

3 0

3 years ago

Answer me right you get brainliest Interpreting a Graph

Zielflug [23.3K]

Answer:

hey i am the person you said you will gove brainliest to but need another person to answer. can you give it to me in this one plzz

Step-by-step explanation:

5 0

3 years ago