All categories

3 years ago

How do you solve "Six less than the quotient of a number and two equals fifteen".

Mathematics

1 answer:

Ainat [17]3 years ago

7 0

X/2 - 6 = 15
x/2 -6 +6 = 15 + 6
x/2 = 21
x/2 × 2 = 21 × 2
x = 42

Check
42 ÷ 2 - 6 = 15
42 ÷ 2 = 21 -6 = 15

You might be interested in

What two numbers multiply and get 100 and add and get -29??

butalik [34]

X, y - the numbers

The numbers multiply to 100.
$xy=100$

The numbers add up to -29.
$x+y=-29 \\
y=-x-29$

Substitute -x-29 for y in the first equation:
$x(-x-29)=100 \\
-x^2-29x=100 \\
-x^2-29x-100=0 \\
-x^2-4x-25x-100=0 \\
-x(x+4)-25(x+4)=0 \\
(-x-25)(x+4)=0 \\
-x-25=0 \ \lor \ x+4=0 \\
x=-25 \ \lor \ x=-4 \\ \\
y=-x-29 \\
y=-(-25)-29 \ \lor \ y=-(-4)-29 \\
y=25-29 \ \lor \ y=4-29 \\
y=-4 \ \lor \ y=-25 \\ \\
(x,y)=(-25,-4) \hbox{ or } (x,y)=(-4,-25)$

The numbers are -4 and -25.

6 0

3 years ago

Read 2 more answers

The net of a rectangular prism is shown.

leva [86]

is the correct answer lol ez stuff

3 0

3 years ago

If l is parallel to m, and m is parallel to a third line n, then l is __________ parallel to n.

sveticcg [70]

The appropriate choice is ...
A. always

_____
For lines, the property of being parallel is transitive. A||B and B||C means A||C.

8 0

3 years ago

Any math experts please factor this thank you have a blessed day

fredd [130]

Answer:

-(x-8)*(x+7)

Step-by-step explanation:

Use the commutative property

-× to the power of 2 + x+ 56

-x to the power of 2 + 8x-7x+56

-xx(x-8)-7x+56

-x*(x-8)-7(x-8)

factor out -(x-8)

-(x-8)*(x+7)

hope it helps!!

7 0

3 years ago

Read 2 more answers

Kristina walks 7 1/2 miles in 5 hours. At this rate, how many miles can Kristina walk in 9 hours

puteri [66]

Answer:

13.5

Step-by-step explanation:

7 1/2=7.5

7.5/5*9=13.5

4 0

3 years ago