MATHEMATICS HIGH SCHOOL

A car travels 55 miles per hour for 2 hours how far does the car travel in 1/2 of a hour 1 1/2 hour

Answers

Answer 1
Answer:

Answer:

for a half an hour the car travels 13.75 miles

Step-by-step explanation:
Answer 2
Answer:

Answer:

Suppose you travel a distance of 100 miles, and it takes 1 1/2 hours to do it. Your average speed is then 100 miles divided by 1.5 hours which equals 66.67 miles per hour.

Step-by-step explanation:

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The greater of two numbers is twice the lesser if the greater is increased by 18 the result is 4 less than 4 times the lesser that the numbers

Answers

Answer:

In short, 5 is the lesser number and 19 is the greater number.

Step-by-step explanation:

So for this, we will be doing a system of equations. Using the info from our question, our two equations are:

(let x = greater number and y = lesser number)

Now, for this I will be using the substitution method. Since we know that x = 4y - 1, substitute that into the second equation:

From here we can solve for y. Firstly, combine like terms:

Next, subtract 4y on both sides of the equation:

Next, multiply both sides by -1:

Now that we know the value of y, substitute it into either equation to solve for x:

Answer:

In short, 5 is the lesser number and 19 is the greater number.

Select the correct difference. -3z^7 - (-5z^7)

Answers

remember
x-(-y) means x+y since minusing a negative cancels

-3z^7+5z^7
addthe coeficients
one way to show is undistribute
-3z^7+5z^7=(z^7)(-3+5)=(z^7)(2)=2z^7

answer is 2z^7

Jane Hilman went to her bank. She had a balance of $2,539.78 in her savings account. She withdrew $150.00 and the teller credited her account with $6.19. What is her new balance?The new balance will be $ ____

Answers

Answer:      

New Balance of Jane Hilman savings account = $2395.97

Step-by-step explanation:

Amount of money Jane Hilman had in her account = $2539.78

Amount of money withdrew by her when she went to the bank = $150

Amount of money left in her account after withdraw = 2539.78 - 150

                                                                                       = $2389.78

Also, Teller credited her account with $6.19

And we need to find the new balance of Jane Hilman account

Thus, New Balance of Jane Hilman savings account = 2389.78 + 6.19

                                                                                           = $2395.97
$150-$6.19=$143.81


2,539.78-143.81=2395.97

If x is 5 then 6x=
30 30x 5x

Answers

if x=5, then 6x= 30 because 6x5=30

How would you find the real solution, by using the quadratic formula.
x^2-4x+2=0

Answers

x^2-4x+2=0 \n \na=1 \n b=-4 \n c=2 \n b^2-4ac=(-4)^2-4 * 1 * 2=16-8=8 \n \nx=(-b \pm √(b^2-4ac))/(2a)=(-(-4) \pm √(8))/(2 * 1)=(4 \pm √(4 * 2))/(2)=(4 \pm 2√(2))/(2)=(2(2 \pm √(2)))/(2)=2 \pm √(2) \n\boxed{x=2-√(2) \hbox{ or } x=2+√(2)}
x^2-4x+2=0\nx^2-4x+4-2=0\n(x-2)^2=2\nx-2=\sqrt2 \vee x-2=-\sqrt2\nx=2+\sqrt2 \vee x=2-\sqrt2

Richard already has 38 flowers in his garden and he can also grow 20 flowers with every seed packet he uses how many seed packets does Richard need to have a total of 218 flowers in his garden

Answers

Answer:9

Step-by-step explanation:218 subtract 38 divided by 20 equals 9
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