Distance: Jack and Jill start from the same point and walk in'opposite directions. Jack

walks 2 kmh faster than Jill. After 3 hours they are 30 kilometers apart. How fast did

each walk?

Answer:

true

Step-by-step explanation:

Let us calculate the determinant of this quadratic equation:

Δ = b^2 - 4ac = 16-4*(-1)*(-4) = 0

The equation has one solution

x = -b/2a = 2

Answer:

x = 7

y = 0

Step-by-step explanation:

Equation:  2x - 9y = 14

We are given that x = -6y + 7

So we substitute (-6y + 7) for "x" in the equation  2x - 9y = 14

* substitute *

2 ( -6y + 7 ) - 9y = 14

now we solve for y using basic algebra

step 1 distribute the 2

2 * -6y = -12y

2 * 7 = 14

now we have -12y + 14 - 9y = 14

step 2 combine like terms

-12y - 9y = -21y

now we have -21y + 14 = 14  

step 3 subtract 14 from each side

14 - 14 cancels out

14 -14 = 0

now we have -21y = 0

step 4 divide each side by -21

-21y / -21 = y

0 / -21 = 0

we're left with y = 0

now to find x

To find x we substitute 0 for "y" in x = -6y + 7

* substitute *

x = -6 ( 0 ) + 7

-6 * 0 = 0

we're left with x = 7

Answer:

y=-1/5x-16/15

Step-by-step explanation:

slope intercept form y=mx+b

3x+15y=-16

15y=-3x-16 divide both sides by 15

y=-3/15x-16/15   simplify -3/15 to -1/5

y=-1/5x-16/15

Answer:

a. 281.25 grams

b. The 500 represent the original amount of aspirin.

c. 3/4 tells us what amount of the aspirin remains after every hour.

d's answer is in the picture. Just copy the line.

Step-by-step explanation:

A is the only part that needs any explanation.

Since the t represent hours, I'll subsititute t for 2.

500 * (3/4)²

3/4 squared is 9/16.

500 * 9/16

Multiply 500 by 9 to get 4500.

4500/16

Simplify 4500/16 to 1125/4 (4 is canceled out.)

1125/4

Divide 1125 by 4 to get 281.25

281.25

281.25 grams of aspirin will be in the patient body after two hours.

Answer:

yes

Step-by-step explanation:

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

Answer:

Tom's median video game score is less than Brad's median video game score.

Answer:

99+3b

Step-by-step explanation:

The original equation would be 3(33+b), but simplifying it would get 99+3b.

Answer:

a) 5.2m   b) 23.6m

Step-by-step explanation:

a) tan 33° = x/8

=> x = tan 33 × 8

=> x ≈ 5.2 m

b) tan 25° = 11/x

=> x = 11/tan 25°

=> 23.6 m

Answer:

100-(8 times y)

Step-by-step explanation:

The high school softball team needs to buy T-shirts for their games. The T-shirts cost $8 a piece and they only have $100 to spend.

8 a peice

This means that the money costs 8$ for each of the players. We don't know how many players there are, so we will just label the amount of players as "y"

And we will multiply 8 times y to get our answer

And then we will subtract THAT answer minus 100 to get our full answer.

Hope this helps!

Have a great day!

Answer:

A. 1 in 6 jeans or 16.67% or [tex]\frac{1}{6}[/tex]

B. 15

Step-by-step explanation:

B. [tex]\frac{1}{6} = \frac{x}{90}[/tex]

If you have any questions feel free to ask in the comments

I forget all my vocabulary so hopefully someone else can correct me if the words I use aren't correct. But the following is definitely a function. "Although two x values correspond to a singular y value, the function passes a vertical line test. Meaning that it is ok to have values of x that equal the same y values, however two values of y assigned to the same x value would make the function undefined."

Hope this helps! The only vocabulary in this that you would really need is "corresponding," and (if you learned about it, you may not have yet) "vertical line test"

Answer:

A.) -34, -34 1/4, -34.5, -34.75

Step-by-step explanation:

No need to have -34 TWICE on a list from least to greatest or greatest to least. This is a typo for sure.

Choice c is the answer.

Answer:

42/5

Step-by-step explanation:

Answer: heres the right aswer 48/5.

This becomes the numerator of the improper fraction; the denominator of the new fraction is the same as the original denominator. For example, we can convert 9 3/5 into a mixed number: 9×5 = 45, and 45 + 3 = 48. Thus, 9 3/5 = 48/5.

Answer:

3^x = 2187 is equivalent to log 3 (2187) = x.  (the three is the small number that goes lower next to the g). Then, use a calculator to do log(2187) / log(3)

Step-by-step explanation:

Answer:

$160.14

Step-by-step explanation:

15% of 174.45 = 26.16

174.45 - 26.16 = 148.28

8% of 148.28 = 11.86

148.28 + 11.86 = 160.14

Answer:

A. L=0.2w+5

Hope this helps!!! :)

Answer:

the answer of the given equation is 1.2675E+37

Step-by-step explanation:

The computation is shown below:

Given that

= 1.2675 × 10^37

The above equation we need to solve

So,

= 1.2675 × 1E+37

= 1.2675E+37

So the answer after solving the equation is  1.2675E+37

The same would be considered and relevant

Hence, the answer of the given equation is 1.2675E+37

Answer:

Jaylen was 16 years old. She's the oldest.

Step-by-step explanation:

16  Jaylen

15  sibling 1

14  sibling 2

13  sibling 3

12 sibling 4

11  sibling 5

10  sibling 6

____________

91  Total

My thinking was that I started out dividing 91 by 7. That came out 13. So I knew the oldest one had to be older than 13.

Answer:

is 132 enough? We need more info.

Step-by-step explanation:

His projects would need 84+(12*4) inches of rope. This means he needs 132 inches of rope. Do you know how much rope he has?

Hope this helps?

Answer:

it is 3 in

Step-by-step explanation:

because 11 times 3 is 33 time 3 is 99

Answer:

1,345,456,232,999, 777,344

Step-by-step explanation:

1,345,456,23   4,   2   3    4,   3    4     5,   2    3      4,

                        -1    2   3     4,    5   6     7,   8    9     0        

1,345,456,23    2,  9   9     9,    7     7    7,   3   4     4      

So we write the ones under the ones, tens under the tens  starting from the right hand side.

The first numbers can be easily subtracted as 4 is greater than zero. Then comes 3 which is less than 9 so we borrow 1 digit from the left to right to make it 13 and subtract 9 from it and get a 4. Then we are left with 1 as we have already borrowed 1 digit. As 1 is less than 8 we again borrow 1 digit from the left to make it 11 and subtract 8 and get 3. So the next number is 4 as we have already borrowed 1 and it is less than 7 . Again we will borrow 1 digit from the left to make it 14 and subtract 7 to get a 7.

So the process continues until we get the answer.

Answer:

1.75m

Step-by-step explanation:

Given;

Perimeter of the hexagon = 10.5metres

Required

Side length of the hexagon

Since hexagon has 6 equal sides, hence the perimeter is expressed as;

P = 6a

a is the side length of the hexagon

Substitute the perimeter given

10.5 = 6a

a = 10.5/6

a = 1.75metres

Hence the length of each side of the hexagon is 1.75m

Answer: Pretty sure it would look like this

Step-by-step explanation:

Answer:

64 units^2

Step-by-step explanation:

A = 1/2*b*h

A = 1/2 * 16 * 8

A = 64

Answer:

64 units

Step-by-step explanation:

Answer:

I belive it is Parellelogram