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Sedbober [7]
3 years ago
15

1)5x + 7 = -12step by step​

Mathematics
1 answer:
tia_tia [17]3 years ago
4 0

Answer:

x=-1

Step-by-step explanation:

Let's solve your equation step-by-step.

5x−7=−12

Step 1: Add 7 to both sides.

5x−7+7=−12+7

5x=−5

Step 2: Divide both sides by 5.

5x/5=-5/5

x=−1

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Ludmilka [50]

Answer:

cos B = a/c

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Step-by-step explanation:

Sin = opposite / hypotenuse

cos = adjacent/ hypotenuse

tan = opposite/adjacent.

5 0
3 years ago
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Yesterday I drove 150 minutes at a speed of 100 miles/h. How many miles did I drve?​
krok68 [10]

Answer: 250 miles

Step-by-step explanation:

I am not sure what grade level you are, but this is how it is done in college.

I hope it can give you an idea and be of some help.

First you have to convert 150 minutes to hours. Then you multiply your new hours to 100 miles.

150 minutes x <u>     1 hour     </u> x<u>       100 miles    </u>= 250 miles

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3 0
3 years ago
I need help to start this problem. Can some help? The problem is 5k+6-k≥-14
lys-0071 [83]
4k+6 is greater or equal to -14
4k is greater or equal to -20
k is greater or equal to -5 <-- answer
6 0
3 years ago
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Find the value of x<br><br><br><br><br><br><br> ………..
andriy [413]

Answer:

135°

Step-by-step explanation:

In a hexagon, sum of all angles = 720

x + x + x + x + 90 + 90 = 720

4x + 180 = 720

4x = 720 - 180

4x = 540

x = 135°

8 0
3 years ago
The slope of a line is 5 /7. What is the slope of any line that is perpendicular to that line?
Lady bird [3.3K]

Answer:

-7/5

Step-by-step explanation:

The slope of a perpendicular line is the "negative reciprocal" of the slope of the original line. so just switch the numbers and put the top number into a negative.

4 0
4 years ago
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