First correct answer gets brainliest! 25 points! Please HELP! I will rlly appreciate it! The average of Amy's, Ben's, and Chris's ages is 6. Four years ago, Chris was the same age as Amy is now. In four years, Ben's age will be 3/5 of Amy's age at that time. How many years old is Chris now?

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Explanation:

1/2 = 0.5

Every 60 days, the amount cuts in half.

We start with 904 grams and after 60 days, we have 904*0.5 = 452 grams left over.

After another 60 days, we have 452*0.5 = 226 grams left over.

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Alternative Method:

We can apply the half-life formula.

y = a*(0.5)^(x/H)

where,

In this case,

When x = 120 days go by, we have....

y = a*(0.5)^(x/H)

y = 904*(0.5)^(x/60)

y = 904*(0.5)^(120/60)

y = 904*(0.5)^(2)

y = 904*(0.25)

y = 226 grams of antimony left over.

This method is preferred over the first method if you have x be some non-multiple of 60, or if x is fairly large.

Step-by-step explanation:

V = $12

M = The number of months

So, function = v + $2m

Lets take an Example = for example the stock price now is $20

V + $2m = $20

V = $12

So, 12 + $2m = 20

$2m = 20 - 12

$2m = 8

m = 8/2

m = 4

So this used we can easily find the number of months

Now let's try with the stock price only

The total now is $24

And 6 months passed

v + $2m = $24

v + $2(6) = $24

v + $12 = $24

v = $24 - $12

v = $12

So we got the same stock price

We found with this function the stock price as well as the number of months

Hope this answers ur question!

Answer:

146

Step-by-step explanation:

72+4(33+2)−19

=49+4(33+2)−19

=49+4(27+2)−19

=49+(4)(29)−19

=49+116−19

=165−19

=146

9514 1404 393

Answer:

  (6, 12)

Step-by-step explanation:

The center of the circle is the midpoint of the diameter, the average of the end point coordinates:

  ((3, 8) +(9, 16))/2 = (3+9, 8+16)/2 = (12, 24)/2 = (6, 12)

The center of the circle is (6, 12).

Answer:

1.73 rounded to the nearest whole number is 2

Answer: 2

Step-by-step explanation: 1.73 since 7 is high round up.

Answer:

12 cents

Step-by-step explanation:

36 divided by 6 is 6. 6x2=12

therefore the answer is .12

The cost of 2 pencils is 12 cents

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the cost of 2 pencils be = A

Now , the equation will be

The cost of 6 pencils is = 36 cents

So ,

The cost of one pencil is = cost of 6 pencils / 6

The cost of one pencil is = 36 / 6

The cost of one pencil is = 6 cents

And , the cost of 2 pencils is calculated by the equation

The cost of two pencils is A = cost of one pencil x 2

The cost of two pencils is A = 6 x 2

The cost of two pencils is A = 12 cents

Therefore , the value of A is 12 cents

Hence , The cost of 2 pencils is 12 cents

To learn more about equations click :

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Answer:

x = -71

Step-by-step explanation:

If it correlates together than it goes down a total of -102.

Answer:

Jonah needs 12 feet of electrical wire.

Step-by-step explanation:

[tex]\frac{3 feet}{1 yard}[/tex]= [tex]\frac{x}{4 yards}[/tex]

cross multiply

12 yard × ft = 1 yard x

12÷1=12

12 feet of wire.

Answer:

40-3

37/40 x100

92.5%

I hope this helps

Answer:

x= 11.04

................

Answer:

Area_3 = 25

Distance from Washington to Springfield = 70.7 miles

Step-by-step explanation:

Two

If one side of a square is 50 miles, all sides are.

a^2 + b^2 = c^2

You are looking for c.  a and b both equal 50

50^2 + 50^2 = c^2

c^2  = 2500 + 2500

c^2 = 5000

√c^2 = √5000

c = 70.7 miles

One

Again you are using a^2 + b^2 = c^2

c = 169

Perimeter of square 2  = 48

a = ?

4s =  48  

s = b = 48/4

s = b = 12

area_2 = s^2

Area_2 =12^2

Area_2 = 144

Area_ 1^2 - Area_2 ^2 = Area_3^2

169 - 144 = Area_3^2

side_3 = sqrt(25)

area= 25

Answer:

B i think

Step-by-step explanation:

Answer:

I think it is 2/5

Step-by-step explanation:

40% as a fraction = 2/5

Answer:

p = 3/4 or 0.75

Step-by-step explanation:

your equation: 60p = 45

divide both sides by 60: p = 45/60

simply the fraction by dividing the numerator and denominator by 15: p = 3/4

your answer: 3/4 or 0.75

Answer: p = 75%

Step-by-step explanation:

p = 45/60 then divide that by 15/15

so 45 divided by 15 is 3

and 60 divided by 15 is 4

this equals too 3/4 = 0.75

0.75 = 75%

Answer: Mark brainliest if satisfied

m<B=72 degrees

m<C= 36 degrees

Step-by-step explanation:

m<B is congruent to m<A

72 times 2 equals 144

180 minus 144 equals 36

Answer:

21/2

Step-by-step explanation:

(x-8)/5=2/4

step 1 you simplify if you can to make it easier

(x-8)/5=1/2

step 2 multiply each side by 5

x-8=5/2

step 3 add each side by 8

x=5/2+8

16/2+5/2=21/2

x=21/2

Answer:

It depends on which side you are talking about.  

Plzzzz give me Brainliest!  

Answer: B:

Step-by-step explanation: 7*6/7+4*6=30

42/7|4*6 also=30

Answer:

the first answer

Step-by-step explanation:

Answer:

545.7 Miles

Step-by-step explanation:

If Javier drave 299.6 miles on 14 gallons of gas then divide 299.6 by 14 to get 21.4. Then multiply 21.4 by 25.5 to get 545.7

Answer: The answer to the question you asked up top would be -27, however the question in the picture doesn't match. As for the question in the picture, the answer is should be choice B or  4 square root 2i

Step-by-step explanation:

The first one: add the number together since they are both negative and just place a negative sign in front.

The second one: break down the square root of -18 into 9*-2. Then add   [tex]\sqrt{-2} + 3 \sqrt{-2}[/tex]  which equals [tex]4\sqrt{2}i[/tex]

Answer:

5a^2 + 7a

Step-by-step explanation:

Combine like terms

Answer:

parallel i am pretty surre

Step-by-step explanation:

Answer:

Parallel

Step-by-step explanation:

Rearrange the equations and compare with

y = mx + c

where m is the gradient/ slope of the line.

You should see that the two equations have the same value of m, meaning they're parallel.

Answer:

37.68ft

Step-by-step explanation:

circumference = πd

12*π=37.68ft

Answer:

Choice A.

Step-by-step explanation:

Since this is a right triangle, we can use Pythagorean Theorem to solve for the missing side length.

3² + x² = 8²

9 + x² = 64

x² = 55

x = √55

Therefore, the answer is choice A.

Answer:

6 or 7 months

Step-by-step explanation:

Answer:

840

Step-by-step explanation:

Answer:

68/.75

Step-by-step explanation:

Answer:9 11/20

Step-by-step explanation: