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defon
3 years ago
15

I need help with this word problem.

Mathematics
1 answer:
zloy xaker [14]3 years ago
4 0

Answer:

33 ⅓%

Step-by-step explanation:

Percent means out of 100, so write a proportion:

1 / 3 = x / 100

Solve for x by multiplying both sides by 100:

x = 100 / 3

Reduce:

x = 33 ⅓

The percent of questions he got right is 33 ⅓%.

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What is -100x and what is x
Zielflug [23.3K]

Answer:

-100x=-100

x=1

Step-by-step explanation:

(simplifying the equation)

-100x-100=0

-100x=-100 they subtracted -100 from both sides

x=1  then divided by -100

:) ur welcome

4 0
3 years ago
Read 2 more answers
Twenty-six students apply to serve as an usher at a school function. Eight of the those applying are freshmen, 7 are sophomores,
Gelneren [198K]

Answer:

d

Step-by-step explanation:

from usatestprep:

The situation is not an example of uniform probability because freshmen, sophomores, juniors, and seniors do not have equal probabilities of being selected.; Uniform probability → equal probability of being selected

P(freshman) =  

8/

26

; P(sophomore) =  

7 /

26

; P(junior) =  

6 /

26

; P(senior) =

5 /

26

; unequal probabilities → not uniform

6 0
3 years ago
Read 2 more answers
One positive number is 4 more than twice another. Their product is 198
EastWind [94]

Answer:

\large \boxed{\sf \  \  9 \text{ and } 22 \ \ }

Step-by-step explanation:

Hello,

We can write that, x being the second number

(4 + 2*x) *x = 198

Let's solve this equation.

(4+2x)x=198\\\\4x+2x^2=198 \\\\\text{*** subtract 198 from both sides ***}\\\\2x^2+4x-198 = 0\\\\\text{*** The product of the zeroes is -198/2=-99=-11*9 and their sum is -4/2=-2 ***}\\\\2x^2+4x-198=2(x-9)(x+11)=0\\\\x=9 \ \ or \ \ x=-11

We are looking for positive number so the solution is 9.

And the first number is 4 + 2 * 9 = 4 + 18 = 22

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

3 0
3 years ago
Read 2 more answers
What does a+5x+2 mean like how do you work it?
inessss [21]
A + 5x + 2 means . . .
a can be any number
5 is multipled by x
x can be any number
2 stays the same
So it would be . . .
a + 5x + 2
An example of this is a would be 6 and x would be 2 so it would be written as . . .
6 + 5(2) + 2 = 18.
Hope this helps
And have a NICE DAY .... :) :D
Also pick me as the brainiest answer/crown :)
5 0
3 years ago
Temp of 20* C will drop by 4*c
svp [43]

Answer:

16* C

Step-by-step explanation:

This is simply 20 - 4

---> 20 - 4 = 16

=> Celcius (C)

Thus, 16° C

4 0
3 years ago
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