Can someone please expand and simplify this

Answer:

Step-by-step explanation:

[tex]45.60 \times 15\% \\ 45.60 \times \frac{15}{100} \\ \frac{684}{100} \\ 6.84[/tex]

12 + 22 + 12 + 4 = 50

There are 50 marbles you can choose from and 12 green marbles so the chance of you getting a green marble is:

12/50

= 0.24

24%

Step-by-step explanation:

7x(x - 2y)

= 7x.(x - 2y)

= 7x² - 14xy

= (2 + 1)(+5)

= (3)(5)

= 3 × 5

= 15

Step-by-step explanation:

1) 7x(x - 2y)

= (7x . x) - (7x . 2y)

= 7x² - 14xy

2) (2 + 1)(+5)

= 3(+5)

= (3 . +5)

= (3 . 5)

= 15

Answer:

0.5

Step-by-step explanation:

That's the answer cheif

Answer:

12.5%

Step-by-step explanation:

I did 20/2.5, and got 8. That means there are 8 groups of 2.5 inside 20.

Then, I did 100/8 to represent the percentage.

I got 12.5%.

Answer:

c

Step-by-step explanation:

there are 2 nines and 3 eights, all multiplied together

Ans: C

9^2=9×9

8^3=8×8×8

9^2.8^3=9×9×8×8×8

Answer:

27

Step-by-step explanation:

75 % of 36 is 27. The place kicker expects he that will make 27 field goals. 36 − 27 = 9 The place kicker expects that he will miss 9 field goals.

First setup the equation for how much element is remaining after each day:

 y = a ( 100% - 3.418%)^t

where y is the amount remainig and t is the number of days

We can clean this up by subtracting the percentages and converting that to a decimal:

  y = a (0.96582)^t

Now for the half-life, we need to figure out how long until there's half of what we started with.  When does "a (0.96582)^t" equal "1/2 of a"

1/2a = a (0.96582)^t

divide by a on both sides and you get

1/2  = (0.96582)^t

take the log of both sides and you get:

log(1/2) = t log(0.96582)

divide both sides by log(0.96582)

 log(1/2) / log(0.96582) = t

Throw that into a calculator and you have

 t ≈ 19.93

1220 - 100 = 1120

1120 + 50 = 1170

Answer: 1170

Answer:

1170

Step-by-step explanation:

HI hope you have a wonderful day.

Answer:

1) 0.3%= 3/1000= 0.003

2) 1.32= 132%

Step-by-step explanation:

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Answer:

Percent means “out of a hundred“

So 0.3 percent as a decimal can just be you multiplying it by 0.001

Since it’s a hundred percent

You’d get 0.003 as a fraction

For 1.32 into a percentage

Remeber percent means out of a hundred

So in this case its 1.32

1 is a whole number so thats already 100 percent

32 extends to the hundreths place so it becomes 32/100

Now add

100+32 = 132

132%

Answer:

52

Step-by-step explanation:

Given:

1/4

Price at 65

Solution:

Let x be the original price

Based on the given conditions, formulate: [tex]x[/tex] ×[tex](1+\frac{1}{4} )=65[/tex]

Apply Multiplicative Distribution Law: [tex]x+\frac{x}{4} =65[/tex]

Multiply both sides of the equation by the common denominator: [tex]x[/tex]×[tex]4+\frac{x X4}{4} =65 X 4[/tex]

Reduce the fraction: x×4+x=65×4

Multiply the monomials: 4x+x=65×4

Combine like terms: 5x= 65×4

Calculate the product or quotient: 5x= 260

Divide both sides of the equation by the coefficient of variable: x = [tex]\frac{260}{5}[/tex]

Calculate the product or quotient: x = 52

get the result: x = 52

Answer: x = 52

Answer:

i dunno what you saying i think we were in the other country ?_?

Answer:

70cm

Step-by-step explanation:

Answer:

profit : $28

profit percentage: 14%

Step-by-step explanation:

his profit :    $1.14 times 200kg = $228

228 -200 = 28

28 divided by 200 = 0.14

0.14 times 10 = 14 %

Answer:

48m

Step-by-step explanation:

12m - 4m = 8m / 2 = 4

12m + 4m + 4m + 4m + 4m + 8m + 8m + 4m = 48

Answer:

difference of two squares will be

16y^2 -x^2 = (4y -x)(4y +x)

so the second choice

Step-by-step explanation:

Answer:

its B

Step-by-step explanation:

_________

[tex] \: [/tex]

[tex]12x = \frac{3}{2} [/tex]

[tex]x = \frac{3}{2} \times \frac{1}{12} [/tex]

[tex]x = \frac{3}{24} [/tex]

[tex]x = \bold{ \frac{1}{8}} [/tex]

Answer:

8 years old

Step-by-step explanation:

Set Amy's age as x.

Kevin's age will be 2x, since he is two times as old as Amy.

Father's age will be 5x, since he is five times as old as Amy.

x + 2x + 5x = Sum of the ages = 64

x + 2x + 5x = 64

Combine like terms: 8x = 64.

Divide 8 on both sides: x = 8.

Amy's age = 8.

Hope this helps!

Answer:

y=5

Step-by-step explanation:

the way you do this is by adding 2 and 3 because two negatives make a positive.

Answer:

5 8/11, 57/10, 5.724, 5.95

Step-by-step explanation:

Answer:

There is a 2/6 chance

Step-by-step explanation:

Because there is only 6 possibilities on a die, under the conditions (even number or a number greater than 3), there are 4 possibilities. This makes a 4/6 chance which can be simplified to 2/6.

Answer:

5a +8

Step-by-step explanation:

a+4a=5a

5a+8

=5a+8

Answer:

5/6 (decimal form: 0.83)

Step-by-step explanation:

Answer: 0.8333… (numbers keep going)

Step-by-step explanation:

Answer:

12 students

Step-by-step explanation:

First, find the percentage of how many students have siblings:

3/10 = 0.3 = 30%

40 * 0.3 = 12

This means that 30% of this class are 12 students. These 12 students have siblings.

Hope this helps!

Answer:

11

Step-by-step explanation:

y=(3 x 4)-1

y=12-1

y=11

Answer:

y = 11

Step-by-step explanation:

Substitute the value for x.

[tex]y=3x-1\\y=3(4)-1\\y=12-1\\y=11[/tex]

Answer:

-20

Step-by-step explanation:

48 divided by -3 is -16 but you round up since its high enough and it goes to -20

Answer:

50

Step-by-step explanation: