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babymother [125]
3 years ago
5

Solve for x: 7(2x - 4) = 42

Mathematics
1 answer:
Vika [28.1K]3 years ago
4 0

Answer:

x =5

Step-by-step explanation:

Distribute the 7

leaves you with 14x - 28 =42

Add 42 to both sides, cancelling out the 28 on the left

left with 14x = 70

70/14 = 5

x = 5

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what is the equation of a line with a slope of 7 and a point (1,8) on the line? express the equation in the form of y=mx+b, wher
Eddi Din [679]
Y = mx + b
slope(m) = 7
(1,8)...x = 1 and y = 8
now we sub into the formula and find b, the y int
8 = 7(1) + b
8 = 7 + b
8 - 7 = b
1 = b

so ur equation is : y = 7x + 1 <==
3 0
3 years ago
HELP ME ASAP ILL GIVE YOU BRAINLIEST!
SSSSS [86.1K]

Ok. To convert anything into anything else you do something very very simple. Divide what you want...by what you have. For example, if I have 15 liters of water, I'm going to multiply by gallons over liters. Multiply the measurement given by what you want, then divide that by what you have.

You take the higher unit and make that 1, then however many of the other units you can fit and that's the other number. That can become 1 gallon / 3.79 liters, or 30m / 3000cm, etc.

So you have 15 liters, you want it in gallons, and it takes four gallons per liter:

15 liters x 1 / 3.79

= 4 gallons (3.9577836 gallons unrounded)

This works because you are dividing the measurement given by how many units of that measurement it takes to fit in another measurement. However, I prefer this method because it makes it easier to figure out when to multiply into smaller units, or divide to get bigger units.

How to convert: measurement x want / have

6 0
3 years ago
If a tank leaks 10 mL of fluid each hour, how long will it take to fill up a one-litre jar?
Rina8888 [55]

Answer:

100 hours

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3 years ago
12345678910 Using the greatest common factor for the terms, how can you write 80 + 32 as a product?
Romashka-Z-Leto [24]
Find the GCF of 80 and 32.  

I'd start by identifying possible integer factors of both 80 and 32:
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32:  {1, 2,4, 8, 16, 32}

Working backwards, we see that the first factor that is represented in both lists is 16.  Is 80 evenly divisible by 16?  Yes; the quotient is 5.
                  Is 32 evenly divisible by 16?  Yes; the quotient is 2.

You could writet 80 + 32 as 16(5 + 2).  This is a product equal to 112, just as 80 + 32 = 112.
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4 years ago
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gladu [14]

Answer:

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3 years ago
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