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emmainna [20.7K]
2 years ago
13

24% of students in a class are girls. If there are less than 30 students in this class, how many students are there? How many gi

rls are there?
Mathematics
1 answer:
castortr0y [4]2 years ago
5 0

Answer:

Step-by-step explanation:

The GCF (greatest common factor) of 24 and 30 is 6.

30-30/6=25

25 students in the class

24% of 25 is 6

6 girls in the class

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Solve the inequality.<br><br> 5/6t - 3≥3t + 6
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Answer:

t ≤ -\frac{54}{13}

Step-by-step explanation:

\frac{5}{6}t−3−3t≥3t+6−3t

-\frac{13}{6}t−3≥6

-\frac{13}{6}t−3+3≥6+3

\frac{13}{6}t≥9

-\frac{6}{13}(-\frac{13}{6}t) ≥ -\frac{6}{13}(9)

t ≤ -\frac{54}{13}

6 0
2 years ago
Which expression is equivalent to (-3)x+ (-3) (-12)?
julia-pushkina [17]

Answer:

A

Step-by-step explanation:

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2 years ago
Factorize 2mh-2nh-3mk+3nk ​
Nookie1986 [14]

Answer:

(2h-3k)(m-n)

Step-by-step explanation:

factor by grouping, you can group the first two terms and the last two terms:

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there will be one factor in common, use that factor in combination with the factors that are not duplicated:

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8 0
2 years ago
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Daisy works at an ice-cream parlor. She is paid $10 per hour for the first 8 hours she works in a day. For every extra hour she
tester [92]

Answer:

The expression giving her net earnings for a day with more than 8 hours worked is X = 80 + 15H, where H means "extra hours worked".

Step-by-step explanation:

Given that Daisy works at an ice-cream parlor earning $10 per hour for the first 8 hours she works in a day, and 1.5 times her hourly wage for every extra hour she works, in order to know how much can she make in a day working more than 8 hours the following equation has to be made:

X = (8 x 10) + (H x (1.5 x 10))

X = 80 + 15H

Therefore, if Daisy works 13 hours, the equation works as follows:

X = 80 + 15x13

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3 0
2 years ago
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Lena [83]
Answer: 11

=========================

Explanation:

To find the inverse, or f^-1 of a function, you first replace the y= 6x-4 with x=6y-4

Finding the inverse from here is basically just finding y in terms of x.

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2) x+4=6
3) (x+4)/6= y

y= (x+4)/6 is now your f^-1.

Now that you have your inverse, replace 62 with your x in y=(x+4)/6

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Therefore, f^-1(62)= 11

Hope this helps :)
5 0
2 years ago
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