Mary, who is sixteen years old, is four times as old as her brother. How old will Mary be when she is twice as old as her brother?

Answers

Answer 1

Answer: M = 16
16 = 4B
B = 4
(M - B) = 12 <== this will never change. Mary will always be 12 yrs older than he is.

So, when she is twice as old as he is, he is 12 and she is 24.
That will occur in 8 years from now.
They should live long and prosper.

Answer 2

Answer:

Answer:

Step-by-step explanation:

16 times 4 is 64

64 divided by 2 is equal to 32

Related Questions

Stuart earns $7.50 an hour plus tips. Select the equation that describes m, the amount of money he earns in one day if he works h hours and receives t dollars in tips.
Elliott has 4 columns of marbles. He has 3 marbles in each column. How many marbles does he have in all? *
Find the quotient –88 ¸ 11.a. –10b. –7c. –8d. –3
A population of values has a normal distribution with $ \mu=195.5 $ and $ \sigma=25.3 $. You intend to draw a random sample of size $ n=215 $. Find the probability that the sample mean is greater than 197.2.
How to solve x-y=102x-y=17

Find the greatest possible error for each measurement. 12 1/4 inches
please help and FAST

Answers

12 should be 1 as in 1 foot. 1' 1/4"

Guys pls help me!!!!!!!

Answers

Answer:

The answer is t = 17

Step-by-step explanation:

Sum of angles on a straight line = 180⁰

(2t -7) + 90 + 49= 180

(2t -7) +139 = 180⁰

2t -7) = 180 - 139

2t - 7 = 41

2t = 41 - 7

2t = 34

Divide both sides by 2

t = 17

during a basketball game, your team scored three times as many 2-point field goals than it did 3-point field goals, and scored a total of 90 points. How many field goals did your team score?

Answers

Answer:

40 field goals

Step-by-step explanation:

Represent 2-point with x and 3-point with y;

Given

$x = 3y$

$2x + 3y =90$

Required

Determine x and y

$x = 3y$

$2x + 3y =90$

Substitute 3y for x in $2x + 3y =90$

$2(3y) + 3y = 90$

$6y + 3y = 90$

$9y = 90$

Divide both sides by 9

$y = 10$

Substitute 10 for y in $x = 3y$

$x = 3 * 10$

$x =30$

The number of field goals = x + y

$x + y = 30 + 10$

$x + y = 40$

Hence, the number of field goals is 40

HELP ME PLS one bottle of shampoo costs 6 dollars for 8 Oz a second bottle costs 4 dollars for 5oz of shampoo wich has a lower unit rate and how much lower

Answers

Answer:

The 8 oz has lower unit rate, it's lower by .2.

Step-by-step explanation:

8 oz divided by $6 = $1.333 for 1 oz ---- (round to 1.3)

6 oz divided by $4 = $1.5 for 1 oz

XY is dilated by a scale factor of 1.3 with the origin as the center of dilation to create the image X'Y'. If the slope and length of XY are m and l respectively, what is the slope of X'Y'?

Answers

Answer: The slope of line X'Y'= m

Step-by-step explanation:

Given: XY is dilated by a scale factor of 1.3 with the origin as the center of dilation to create the image X'Y'.

The slope and length of XY are m and l respectively.

Dilation is a transformation that forms similar shape, but with a different size such that the corresponding sides of image and original shape are parallel to each other.

As the slope of parallel line are equal .

⇒ The slope of XY and X'Y' are equal.

Hence, the slope of X'Y' is m.

Hello,

Dilatations conserved parallelism

=> slope of X'Y'=m= slope of XY

Dilatations multiply length by the scale factor

==> |X'Y'|=1.3*|XY-=1.3*L

What is the factored form of the polynomial? x2 - 15x + 36

Answers

Answer:

$(x-12)(x-3)$

Step-by-step explanation:

We have been given an polynomial $x^2-15x+36$ and we are asked to factor our given polynomial.

We will factor our given polynomial by splitting the middle term in two numbers such that the numbers add up-to -15 and their product will be equal to 36.

We know that -12 and -3 add up-to -15 and their product is 36. So splitting the middle term of our given polynomial we will get,

$x^2-12x-3x+36$

$x(x-12)-3(x-12)$

$(x-12)(x-3)$

Therefore, the factored form of our given polynomial is $(x-12)(x-3)$ .

The factored form of the polynomial $x^2 - 15x + 36$ is $(x - 3)(x - 12)$ .

To find the factored form of the polynomial $x^2 - 15x + 36$ , we can look for two binomials that, when multiplied, give us the original polynomial.

The general form of a quadratic polynomial in factored form is $(x - r_1)(x - r_2).$