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3 years ago

6

Maria bought cupcakes for her sister's birthday party. 20% of the 15 cupcakes had sprinkles on top. How many cupcakes had sprink

les? Please answer

1 answer:

abruzzese [7]3 years ago

3 0

Answer:

3 cupcakes

Step-by-step explanation:

to figure it out you could've done 15*0.20

use that equation for future percentage problems

amount x percentage in the form of a decimal

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AFTER SCHOOL JUAN WORKS PACKING BOXES AT THE BOOK STORE EACH BOX HOLDS 5 BOOKS HOW MANY BOXES WILL JUAN NEED TO PACK 118

yulyashka [42]

Since you cannot have a fraction amount of a box, you will need to round up(you cannot NOT put in any books either, so you must round up).

118 rounded to the nearest multiple of is 120

120/5=

20+4=

24

24 boxes!

(he better be getting paid for this)

3 0

2 years ago

an insect population grows at a rate of 25% per year.if its initial population is 4.2 million what will be its population in thr

marusya05 [52]

The population after 3 years would be 8.20 millions.

Step-by-step explanation:

Given,

Initial population = I = 4.2 million

Growing rate = r = 25%

If the initial population and growing rate is given, the formula to calculate the population (x) after n years would be:

$x = I * (1 + \frac{r}{100} )^{n}$

By putting the values in the equation, we get

$x = 4.2 * (1 + \frac{25}{100} )^{n}$

The population after 1st year (x1) would be

$x1 = 4.2 * (1 + \frac{25}{100} )^{1}$

x1 = 5.25 million

Similarly,

$x2 = 4.2 * (1 + \frac{25}{100} )^{2}$

x2 = 6.56 million

$x3 = 4.2 * (1 + \frac{25}{100} )^{3}$

x3 = 8.20 million

Hence, the population after 3 years would be 8.20 millions.

But, if you are asking about the total population at that time. It would be

I + x1 + x2 + x3 = 24.21 million

7 0

4 years ago

HELP PLEASE ILL GIVE 27 POINTS <br> 120% of x is 96. What is x?

zlopas [31]

Answer:

Step-by-step explanation:

You can do this using a small equation.

120% x = 96 Change 120% to a decimal

120/100 * x = 96 Multiply by 100

120x = 96 * 100

120x = 9600 Divide by 120

x = 9600/120

x = 80

Look what you got. 20% more than 80 is 96. x is smaller than 96.

If you take 20/100 * 80 = 16

if you add 16 to 80, you get 96

6 0

3 years ago

Read 2 more answers

Sumiko and Jandella ran the bleachers together today at Poly High School. Sumiko runs these same bleachers every 6 days and Jand

Fittoniya [83]

Answer:

The soonest they will see each other again is in 48 days

Step-by-step explanation:

Here is the complete question:

Sumiko and Jandella ran the bleachers together today at Poly High School. Sumiko runs these same bleachers every 6 days and Jandella runs them every 16 days. The soonest they will see each other again is in days.

Step-by-step explanation:

From the question, Sumiko and Jandella ran the bleachers together today, that is, they saw each other today.

Sumiko runs the bleachers every 6 days while Jandella runs them every 16 days

To determine how soon they will see each other again, we will list the days they will run the bleachers separately.

For Sumiko, she will run the bleachers on the

6th, 12th, 18th, 24th, 30th, 36th, 42nd, 48th, 54th, 60th, etc days after today.

For Jandella, she will run the bleachers on the

16th, 32nd, 48th, 64th, 80th, etc days after today.

From above, they will both run the bleachers on the 48th day after today.

Hence, the soonest they will see each other again is in 48 days.

6 0

3 years ago

Please help. solve for x

malfutka [58]

Step-by-step explanation:

Given,

Base of the triangle

$2 \sqrt{6}$

Hypotenuse of the triangle = 5

Height of the triangle = x

Therefore, According to Pythagoras Theorem,

${base}^{2} + {height}^{2} = {hypotenuse}^{2}$

$= > {(2 \sqrt{6)} }^{2} + {x}^{2} = {5}^{2}$

$= > 24 + {x}^{2} = 25$

$= > {x}^{2} = 25 - 24$

$= > {x}^{2} = 1$

$= > x = \sqrt{1}$

$= > x = 1$

Hence, the required value of <u>x is 1.</u>

7 0

3 years ago