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3 years ago

Garrett is 3 years older than Rachael. In 2 years the sum of their ages will be 39. How old is Garrett now?

1 answer:

3 0

Let garret’s age be x

x + 2 + (x + 3) + 2 = 39
2x + 7 = 39
2x = 32
x = 32/2
x = 16

Garrett’s age after two years = 16 + 2 = 18

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What is the ricipical of -2/9

Solnce55 [7]

The recipricol of -2/9 is 9/2, or 4 1/2

remember to change the sign (forgot to myself)

hope this helps

7 0

4 years ago

Read 2 more answers

Nigel is planning his training schedule for a marathon over a 4-day period. He is uncertain how many miles he will run on two da

KengaRu [80]

Answer:

$12+17+y+z$ or $29+y+z$ .

Step-by-step explanation:

We have been given that Nigel is planning his training schedule for a marathon over a 4-day period. He is uncertain how many miles he will run on two days. One expression for the total miles he will run is $12+y+17+z$ .

The Commutative Property of Addition states that we can add numbers in any order. For example a and b be two numbers.

According to Commutative Property of Addition $a+b=b+a$ .

Similarly, we can write an equivalent expression to our given expression as:

$12+17+y+z$

We can simplify our expression as:

$29+y+z$ .

Therefore, our required expression would be $12+17+y+z$ or $29+y+z$ .

4 0

3 years ago

Is my answer correct? If not please help.

DerKrebs [107]

I think you are correct

4 0

3 years ago

Line FG goes through the points (4,9) and (1,3). Which equation represents a line that is perpendicular to FG and passes through

stiks02 [169]

Answer:

$x + 2y= 2$

Step-by-step explanation:

Given

Points:

$F = (4,9)$

$G = (1,3)$

Required

Determine the equation of line that is perpendicular to the given points and that pass through $(2,0)$

First, we need to determine the slope, m of FG

$m = \frac{y_2 - y_1}{x_2 - x_1}$

Where

$F = (4,9)$ --- $(x_1,y_1)$

$G = (1,3)$ --- $(x_2,y_2)$

$m = \frac{3 - 9}{1 - 4}$

$m = \frac{- 6}{- 3}$

$m =2$

The question says the line is perpendicular to FG.

Next, we determine the slope (m2) of the perpendicular line using:

$m_2 = -\frac{1}{m}$

$m_2 = -\frac{1}{2}$

The equation of the line is then calculated as:

$y - y_1 = m_2(x - x_1)$

Where

$m_2 = -\frac{1}{2}$

$(x_1,y_1) = (2,0)$

$y - 0 = -\frac{1}{2}(x - 2)$

$y = -\frac{1}{2}(x - 2)$

$y = -\frac{1}{2}x + 1$

Multiply through by 2

$2y = -x + 2$

Add x to both sides

$x + 2y= -x +x+ 2$

$x + 2y= 2$

Hence, the line of the equation is $x + 2y= 2$

8 0

3 years ago

Read 2 more answers

What is the probability of rolling a product of 30 when rolling two dice?

Nimfa-mama [501]

It has a probability of 2 out of 36 chances as there are only two ways it can happen out of 36 different combinations that can be rolled. Product means multipication also in Maths

The first probability on the first roll is that Dice 1 must be a 5 and Dice 2 must be a 6 so that 5x6=30 

The second probability on the second roll is that Dice 1 must be 6 while Dice 2 must be 5 so that 6x5=30 

That is the only two ways out of 36 different combinations that can be made by rolling to Die. Therefore the probability is 2 out of 36

8 0

3 years ago