the spaceship you are riding to get to mars is going 1000 mph how long will it take to get to mars at that rate of speed if you are 15,000 miles away?

Answers

Answer 1

Answer:

15 hours

Step-by-step explanation:

Speed is defined as the distance moved per unit time hence s=d/t and making t the subject of the formula then t=d/s where t is time taken, d is distance covered and s is the speed.

Substituting 15000 miles for d and 1000 mph for s then

T=15000/1000=15 hours

Therefore, maintaining the same speed, it will take 15 hours to get to mars

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Please help 6n^2-5n^2-7n^2 simplify the expression

Answers

Since 6n^2 and −5n^2 are like terms then add −5n^2 to 6n^2 to get n^2.

n^2−7n^2

Since n^2 and −7n^2 are like terms then add −7n^2 to n^2 to get −6n^2.

The answer is −6n^2

Is this equation standard form of an ellipse or circle?-3x^2-3y^2-12x-12y+24=0
What's the center?

Answers

The standard form equation for a circle is

$(h-x)^2+(k-y)^2=r^2$

where (h, k) is the center and r is the radius.

The standard form equation for an ellipse is

$((x-h)^2)/(a^2)} + ((y-k)^2)/(b^2) = 1$

(center h, k and major and minor axes a and b)

This equation is standard form for neither, but might be general form for one.

$-3x^2-3y^2-12x-12y+24=0 \n -3(x^2+y^2+4x+4y)=-24 \n x^2+4x+y^2+4y=8\ (complete\ the\ squares)\n (x^2+4x+4)+(y^2+4y+4)=8+4+4\n (x+2)^2+(y+2)^2=16 \n Circle\ with\ radius\ 4\ and\ center\ (2,\ 2)$

Ashley puts 45 stamps in an album. She puts the same number of stamps on each page,and 3 stamps on the last page. There are 2 more pages in the album than the number of stamps on each page. How many pages are in the album? How many stamps are on each page?

Answers

45 pages total
3 on last page
45-3=42
there are 42 on the rest of the pages
on each page, there are 2 more pages in album than then stamps on pages

amount of stamps on pages with equal number of stamps is
A=numberofpgest times number of stamps on pages
number of pages=p
number of stamps per papge=s
a=ps

2 more pages than stamps on pages
p=2+s
total number of stamps per page is s=(45-3)/(p-1)
(what I did is I first got rid of number of stamps on last page, then got rid of the last page)
P=2+s
s=(45-3)/(2+s-1)
s=42/(s+1)
times s+1 both sides
s^2+s=42
minus 42
s^2+s-42=0
factor
(s-6)(s+7)=0
set equal to zero
s-6=0
s=6

s+7=0
s=-7, false, no negative stamps

6 stamps per page

sub
p=2+s
p=2+6
p=8
8 pages

check
last page is 3 so 8-1=7 page left

7*6=42
3+42=45

correct

there are
8 pages in the album
6 stamps per page

What number is 60% of 25?

Answers

Step 1. 60%= .60
Step 2. 25*.60= 15

OR

X/25 = 60/100
25*60=100X
1500=100x
x=1500/100
x=15

I like to use is=%*of so the is is x percent is .60 and of is 25 so you would set it up like
is=%*of
x=.60*25
.60*25=15

Determine the inverse for the function f(x)= 4x+20

Answers

Answer:

6.40

Step-by-step explanation:

What axis is the axis of symmetry on?

Answers

The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves. The axis of symmetry always passes through the vertex of the parabola. The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola.

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