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3 years ago

12

Find two consecutive integers whose sum is 45. List the numbers from smallest to largest separating them with a comma (6, 7).

1 answer:

lana66690 [7]3 years ago

7 0

Answer:

(22, 23)

Step-by-step explanation:

x + ( x + 1) = 45

2x + 1 = 45

2x = 45 - 1

2x = 44

x = 44 ÷ 2

x = 22

22, 23

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Answer:

Step-by-step explanation:

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3 years ago

Solve 5r2 – 12 = 68. {±4} {±5} {±3} {±6}

sashaice [31]

Hey there!

Assuming you meant

$5r^2 - 12 = 68$

If so, follow these steps so it can be a little bit easier to solve

Firstly, we have to $add$ by $12$ on each of your sides

$5r^2 -12 +12 \\ \\ 68 + 12$

$5r^2 = 5r^2 \\ \\ 68 + 12 = 80$

We get: $5r^2 =80$

Now, we have $divide$ by $5$ on each of your sides

$\frac{5r^2}{5} = \frac{80}{5}$

$\frac{80}{5} = 16$

We get: $r^2 = 16$

$r =$ ± $\sqrt{16}$

Therefore , your answer is: $r =$ ± $4$

Good luck on your assignment and enjoy your day!

~ $LoveYourselfFirst:)$

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3 years ago

What is the slope of the line that passes through the points (4, 9) and (1, 6)?

Aleksandr [31]

a = ( 1 , 6 )

b = ( 4 , 9 )

$slope = \frac{y(b) - y(a)}{x(b) - x(a)} \\$

Now just need to put the coordinates in the above equation :

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And we're done...♥️♥️♥️♥️♥️

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