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2 years ago

Simplifica: 7 - 2 ( 3 + 1) -

Mathematics

1 answer:

Ganezh [65]2 years ago

7 0

Answer:

-1

Step-by-step explanation:

7-2(3+1)

=7-2(4) or =7-(6+2)

=7-8

=-1

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Naddik [55]

Answer:none

Step-by-step explanation:

Because they are all straight angle line

Y=2x —> positive line

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2 years ago

Solve the inequality for x: -5x - 49 > 113

Valentin [98]

-5x - 49 > 113
Add 49 to both sides
-5x > 162
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Hope this helps!

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3 years ago

Read 2 more answers

The sum of two consecutive integers is 85. What are those two<br> integers?

chubhunter [2.5K]

Answer:

41 and 42

Step-by-step explanation:

Let the integers be x and x + 1

=> x + x + 1 = 85

=> 2x + 1 = 85

=> 2x = 84

=> x = 84/2

=> x = 41

Integers are :

41 and 42

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2 years ago

The absolute value function, f(x) = |x + 2|, is shown.

Anit [1.1K]

Answer:

Incomplete question

Step-by-step explanation:

4 0

2 years ago

The cost (c) to hire a dog trainer is varies directly with the amount of time (h) in hours spent training the dog.

NNADVOKAT [17]

Answer:

Part A) The proportional equation is $c=55h$

Part B) 8 hours of training

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y/x=k$ or $y=kx$

Let

c -----> the cost to hire a dog

h ----> the amount of time in hours

The linear equation is equal to

$c=kh$

Sue spent $660 on 12 hours of obedience training for her dog Muffin

Find the value of k (constant of proportionality)

$k=y/x$

substitute the values

$k=660/12=55$

therefore

The linear equation is

$c=55h$

For $c=\$440$

Find the value of h

substitute in the equation and solve for h

$440=55h$

$h=440/55=8\ hours$

5 0

3 years ago