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3 years ago

Which equations have the variable term isolated to one side of the equals sign, and the constant isolated to the other

Mathematics

1 answer:

kozerog [31]3 years ago

8 0

Answer:

7/10x =7/3

-7/3 =-7/10x

This is the answer cause I just took the test and these were the right answers.

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I think of number, double it and add 11. I get 25 a) using the statement above, form an equation. Use the letter 'x' as a unknow

Misha Larkins [42]

Answer:

x = 7

Step-by-step explanation:

Let

x = the unknown number

double it :

add 11:

2x + 11

I get 25:

The equation is

2x + 11 = 25

2x = 25 - 12

2x = 14

Divide both sides by 2

x = 14/2

x = 7

7 0

3 years ago

there are four semi trailer trucks parked in a line at the rest stop after the first truck each truck in the line weighs 2 tons

alexira [117]

Call the weght of the first truck " $w_{1}$ ". We then know that the truck after that is 2 tons more, and the next and the next. i.e:
$w_{2} = w_{1} + 2$
$w_{3} = (w_{2} + 2) = (w_{1}+4)$
$w_{4} = (w_{3} + 2) = (w_{1}+6)$

We also know that total is 32 tons.
$w_{total} = 32 = (w_{1}) + (w_{2}) + (w_{3}) + (w_{4})$
$32 = (w_{1})+(w_{1}+2)+(w_{1}+4)+(w_{1}+6)$
$32= 4(w_{1})+12$
$20=4(w_{1})$
$w_{1} = 5 tons$

Therefore the trukcs weigh 5,7,9 and 11 tons for a total of 32 tons.

Converting to pounds, the trucks weigh 10,000, 14,0000, 18,0000 and 22,000 pounds.

3 0

3 years ago

Nata [24]

Answer:

400,000km is represented as 8cm on the map!!!

Step-by-step explanation:

1cm=50000km

8cm=x

Criss cross

1cmx=8cm×50000km

divide both side with 1cm

x=8×50000km

x=400,000km

5 0

3 years ago

Which are ways to decompose the composite figure into simpler shapes that you have area formulas for? Check all that apply.

Oksanka [162]

Answer:

1st and second, unless you have already learned area of trapezoids. If you have, add third

Step-by-step explanation:

4 0

3 years ago

Why might soft drink companies be interested in the dimensions that give the minimum surface area?

12345 [234]

When surface area is minimized, that means the less material companies would have to use for the can. Companies can spend less money on aluminum for the can and still hold the same amount of that beverage inside the can.

8 0

3 years ago