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3 years ago

Find the percent increase from the first number to the second in the following pairs.

Mathematics

1 answer:

kifflom [539]3 years ago

5 0

A. 40%
B. 56.25%
C. 33.3333%
D. -88.8888%

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Of course, you don't know what the dropdowns are, so, I'll tell you.

Scorpion4ik [409]

Part A

4 < 5 < 9 is given to us. Apply the square root to each term to end up with this inequality: sqrt(4) < sqrt(5) < sqrt(9)

So sqrt(5) is between sqrt(4) and sqrt(9)

-------------------

Part B

Simplify those two mentioned square roots

sqrt(4) = sqrt(2^2) = 2

sqrt(9) = sqrt(3^2) = 3

Therefore, sqrt(5) is also between 2 and 3

We can see this through using a calculator: sqrt(5) = 2.23607 approximately

-----------------

Part C

We can now say:

2 < sqrt(5) < 3

Multiply all three sides by 6

6*2 < 6*sqrt(5) < 6*3

So the expression 6*sqrt(5) is between 6 x 2 and 6 x 3

Sure enough, a calculator confirms this

6*sqrt(5) = 13.416408

since 6*2 = 12 and 6*3 = 18. We see that 13.416 is between 12 and 18.

5 0

3 years ago

Rachel has 3 times as many roses as carnations. She has 12 fewer carnations than daisies. There are 15 daisies. How many flowers

horrorfan [7]

Answer:

27 flowers

Step-by-step explanation:

Let

x ----> the number of roses

y ----> the number of carnations

z ----> the number of daisies

we know that

$x=3y$ ----> equation A

$y=z-12$ -----> equation B

$z=15$ -----> equation C

substitute the value of z in equation B

$y=15-12=3$

substitute the value of y in equation A

$x=3(3)=9$

Rachel have 9 roses, 3 carnations and 15 daisies

In total

9+3+15=27 flowers

3 0

4 years ago

1 What is the domain of F(x) = 1/x

tangare [24]

Answer:

6557659

Step-by-step explanation:

tdycdu76rfvuiyt67gbvvbfutre7juitgvytx

7 0

3 years ago

A modified roulette wheel has 32 slots. one slot is 0, another is 00, and the others are numbered 1 through 30, respectively. Yo

mariarad [96]

Answer:

0.46875 ; 1.133 ; $17 ;19.27

Step-by-step explanation:

Number of slots = 32

0, 00, {1,.. 30}

Odd outcomes = {1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29}

1.) probability of winning :

P(winning) = number of odd outcomes / tot possible outcomes

P(winning) = 15 / 32 = 0.46875

2.)

Odds against winning :

Number of losing outcomes / number of winning outcomes

Not odd numbers / odd numbers = 17 /15 = 1.133

C.)

Payoff odd = 1:1

If bet value = $17 ;

Profit made on winning = $17 * 1 = $17

d.)

If Payoff odd = odd against winning = 17 / 15

Profit on $17

17/ 15 * 17

(1.1333333) * 17

= 19.27

;

7 0

3 years ago

A boy spent 2/5 of his money on sweets and 1/3 on pen. What fraction of his money did he have remaining?

Anettt [7]

Answer:

2/5 *3/3= 6/15

1/3*5/5= 5/15

6/15+5/15=11/15

4/15 remaining

5 0

3 years ago