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alex41 [277]
2 years ago
6

A rectangular picture frame has a length of that is 6 more than its width the perimeter of the frame is 52 inches. what is the l

ength and width of the frame?
Mathematics
1 answer:
Hitman42 [59]2 years ago
3 0

Answer:

Width = 10 and Length = 16

Step-by-step explanation:

→ Assign variables to the length and width

width = x so length = 6 + x

→ Make an equation

x + 6 + x + x + 6 + x = 52

→ Simplify

4x + 12 = 52

→ Minus 12 from both sides

4x = 40

→ Divide both sides by 10

x = 10

→ Resubstitute into the previously assigned values

width = 10 so length = 16

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100 points / please help, im lost
Yakvenalex [24]

Answer:

12:15 is NOT proportional to 3:4

Step-by-step explanation:

7.5:10 is proportional to 3:4 because 3×2.5=7.5, and 4×2.5=10.

39:52 is proportional to 3:4 because 3×13=39, and 4×13=52

45:60 is proportional to 3:4 because 3x15=45, and 4×15=60

12:15 is not proportional to 3:4 because while you can multiply 3x4=12, you can not multiply 4×4 to get 15, you get 16 instead.

8 0
2 years ago
Read 2 more answers
Points A and B are located in a standard (x,y) coordinate plane. If A has coordinates (4,-4) and B has coordinates (0,8), what a
dimulka [17.4K]

the easiest way I find a midpoint of two points is the midpoint theorem, here it is:

\frac{x1+x2}{2} , \frac{y1+y2}{2}

For x and y plug in the two coordinates given, (4,-4) & (0,8)

so once you plug the numbers into the equation you would get:

(2,2)

7 0
3 years ago
A car travels at an average speed of 68 miles per hour. how many miles does it travel in 5 hours and 15 minutes?
blagie [28]
Distance = rate times time.  Thus,

d = (68 mph) (5.25 hrs) = 357 miles (answer)
5 0
3 years ago
What is the difference of 7x − (25x2 + 12x)
Sav [38]
If you would like to solve 7x - (25x^2 + 12x), you can do this using the following steps:

7x - (25x^2 + 12x<span>) = 7x - 25x^2 - 12x = - 25x^2 - 5x
</span>
The correct result would be <span>- 25x^2 - 5x.</span>
7 0
3 years ago
A line with a slope of -3 and an x-intercept of 15 passes through which following points?
Alla [95]

Let's first write down all the information given in <em>y = mx + b</em> form. Notice that x-intercept means that <em>y = 0</em> at that point. <em>b</em> is not given, so:

0 = -3(15) + b

Let's solve for b:

0 = -45+b

b = 45

Now we have the equation:

y = -3x + 45

We can plug in every option given to see which choice makes it true:

<u>(0, 30)</u>

30 = -3(0) + 45

30 \neq 45

<u>(5, 15)</u>

15 = -3(5) + 4515 = -15+45

15\neq 30

<u>(10, 10)</u>

10 = -3(10) + 45

10 \neq 15

<u>(-5, 60)</u>

60 = -3(-5) + 45

60 = 60

Therefore, choice D or <u><em>(-5, 60)</em></u> is your answer. Hope I could help! :)


<em>*There is probably an easier way to solve this, I just didn't see it when I attacked the problem! :) </em>

5 0
3 years ago
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