4. Twenty-five percent of the fish in anaquarium are goldfish. There are 124
total fish in the aquarium. How many of
the fish are goldfish?
A. 5
B. 25
C. 31
D. 99

Answers

Answer 1

Answer: $\bold{ANSWER:}$
C) 31

$\bold{SOLUTION:}$

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Solve for y xy+p=5 y=5-p-x y=(5-p)/x y=5-px
W + 1200+209 = 2000This might seem easy but I seriously don’t know how to get to the answer

Simplify this step by step
$(-5jk)/(35j^2k^2)$

Answers

$\frac { -5jk }{ 35{ j }^( 2 ){ k }^( 2 ) } \n \n =-\frac { 5 }{ 35 } \cdot \frac { j }{ { j }^( 2 ) } \cdot \frac { k }{ { k }^( 2 ) } \n \n =-\frac { 1 }{ 7 } \cdot \frac { 1 }{ j } \cdot \frac { 1 }{ k } \n \n =-\frac { 1 }{ 7jk }$

Remember that:

$\frac { j }{ { j }^( 2 ) } =\frac { 1 }{ j } \cdot \frac { j }{ j } =\frac { 1 }{ j } \cdot 1=\frac { 1 }{ j } \n \n \frac { k }{ { k }^( 2 ) } =\frac { 1 }{ k } \cdot \frac { k }{ k } =\frac { 1 }{ k } \cdot 1=\frac { 1 }{ k }$

$(-5jk)/(35j^2k^2)=-(1)/(7jk)$

Mr. Farmer plans on a 325% harvest. How many bushels of corn must he sow to reap 1,100 bushels?

Answers

In order for Mr. Farmer to reap 1,100 bushels expecting that 325% of harvest in what he sows. So in equation, let x be the number of bushels of corn so ,325% of x = 1,100
Solve for x, 3.25x = 1100 then we divide both sides with 3.25 to get x.
x = 1100/3.25
x = 338.46 .

The sum of the digits of a two-digit number is 9. If the digits are reversed, the new number is 27 less than the original. Find the original number.

Answers

I did another one just like this about an hour ago. I did it the elegant, tedious way,
and it took about 2 feet of screen. Then I realized there was a totally bourgeois but
easy way to do it. For 5 points, I'll give you the method for the masses:

List all the possible pairs of digits that add up to 9, along with their flips:

18 . . . . . 81
27 . . . . . 72
36 . . . . . 63
45 . . . . . 54

Do you see any pair that are different by 27 ?
How about 36 and 63 ?

So the original number is 63, and when you flip it, it becomes 36, which is 27 less.

Question 5Two similar triangles are shown in the diagram below, where
AABC - ADEF.
Based on the dimensions in the diagram, what is the
perimeter of AABC?
A-9 in.
B-10 in.
C-9.5 in.
D-10.5 in.

Answers

Answer:

Perimeter of ΔABC is 9.5 in.

Step-by-step explanation:

Given:

ΔABC $\sim$ ΔDEF

DE = 6 in.

EF = 5.25 in.

DF = 3 in.

AB = 4 in.

We need to find the Perimeter of ΔABC.

Solution:

First we will find the sides of ΔABC.

Now By Triangle similarity property which states that:

"When two triangles are similar the the ratio of their corresponding sides are equal."

From Above property we can say that;

$(AB)/(DE) =(BC)/(EF)=(AC)/(DF)\n\n(4)/(6)=(BC)/(5.25)=(AC)/(3)$

Now we will find BC and AC

$(4)/(6)=(BC)/(5.25)\n\nBC = (4*5.25)/(6)= 3.5 \ in$

Also;

$(4)/(6)=(AC)/(3)\n\nAC = (4*3)/(6) = 2 \ in$

Now In ΔABC

AB = 4 in

BC = 3.5 in

AC =2 in.

Now Perimeter of ΔABC can be calculated as sum of all sides.

Perimeter of ΔABC = AB +BC +AC = 4 + 3.5 + 2 = 9.5 in

Hence Perimeter of ΔABC is 9.5 in.

Solve for pi please.

Answers

Answer:

2A / r^2 = pi

Step-by-step explanation:

A = 1/2 pi r^2

Multiply by 2

2A = pi r^2

Divide by r^2

2A / r^2 = pi r^2/r^2

2A / r^2 = pi

The following data shows rainfall in a forest, in inches, on consecutive days of a month:2.7, 2.6, 2.4, 2.5, 2.8, 2.6, 2.7, 2.8, 2.4, 2.3, 2.5
What would be the values where each line is in a box plot?? Like the median, maximum, minimum

Answers

Data set: 2.7, 2.6, 2.4, 2.5, 2.8, 2.6, 2.7, 2.8, 2.4, 2.3, 2.5

arrange in ascending order:
2.3, 2.4, 2.4, 2.5, 2.5, 2.6, 2.6, 2.7, 2.7, 2.8, 2.8

The 5 number summary that is presented in a box plot
1) minimum value - 2.3
2) 1st quartile - 2.4
3) median - 2.6
4) 3rd quartile - 2.75
5) maximum value - 2.8

Answer:

The answer is the First graph

Step-by-step explanation:

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(1+5/6)(1-5/6)I don't understand it

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