3 years ago

Which expression is the factored form of −4.5n+3

Mathematics

1 answer:

Andrei [34K]3 years ago

5 0

−3(1.5n−1) is correct

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Select all coordinate pairs that are solutions to the inequality 5x + 9y < 45.

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F (5,9)
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3 years ago

What is -15x=-240?????????

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4 years ago

Read 2 more answers

Pleasee help mee ....

In-s [12.5K]

Answer:

x = 4.5

Step-by-step explanation:

a^2 + b^2= = c^2

4^2 + 2^ = c^2

16 + 4 = c^2

20 = c^2 --> find square root of 20 and round to nearest tenth*

4.47 = c

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4 0

3 years ago

The sum of twice a number and another number is 24. The difference of twice the first number and the other number is 12. Which s

dem82 [27]

Answer:

The system that models the situation is:

$\left \{{{2x + y = 24} \atop {2x - y = 12}} \right.$

The solution is:

(9, 6)

Step-by-step explanation:

We must write the equations as indicated in the problem.

The sum of twice a number and another number is 24

a number: x

other number: y

Then

$2x + y = 24$

The difference of twice the first number and the other number is 12

first number: x

other number: y

Then:

$2x - y = 12$

The system that models the situation is:

$\left \{{{2x + y = 24} \atop {2x - y = 12}} \right.$

To solve the system we add both equations to find the value of x

$2x + y = 24\\\\2x - y = 12$

---------------------

$4x +0 = 36\\\\x=\frac{36}{4}\\\\x=9$

$2(9) +y = 24\\\\y=24-18\\\\y=6$

The solution is:

(9, 6)

6 0

3 years ago