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77julia77 [94]
2 years ago
5

A triangle has a perimeter of 59cm. If the three sides of the triangle are n, 3n+4, and 4n−1, what is the length of each side?

Mathematics
2 answers:
Elina [12.6K]2 years ago
8 0

Answer:

I honestly have no clue

Step-by-step explanation:

I think you divide something

Radda [10]2 years ago
6 0
N=7 so the sides r 7cm, 25cm and 27cm
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WHATS THE AREA?? PLEASE HELP!
pentagon [3]
(0.5*10*18) + (0.5*6*18)
= 54 + 90
= 144 square units
8 0
3 years ago
Solve and graph the absolute value inequality:-8>-5x+2>-38?
Pani-rosa [81]
Hello : 
<span>:-8>-5x+2>-38  equiv : 
-38 </span>< -5x+2 <span>< -8
let : f(x) = -5x+2..... ( graph color red)
       g(x) = -38 </span>..... ( graph color pruple)<span>
       h(x) = -8  ......</span> ( graph color blue)
 the absolute value inequality is : ] 2, 8<span>[ ( between the graph of g and h)</span>

7 0
3 years ago
Table: Favorite Subject: Math 6, Science 3, English 4, History 7.
Klio2033 [76]

This is a ratio problem. First, we need to add the number of students polled.

7 + 4 + 3 + 6 = 20

Next, look at how many out of 20 students selected Science.

3 out of 20.

Say it this way:

3 is to 20 as ? is to 400.

Express it this way:

3/20 = x/400

Cross multiply to eliminate the denominators.

3 x 400 = 20 x  Now solve for x.

1200 = 20 x

x = 60

Check it!

Does 60/400 reduce to 3/20? Yes!

60 students are predicted to select science out of 400

4 0
3 years ago
Read 2 more answers
1. a -7 when a = 3 a + 7 = 3 + 7 = __​
Tanya [424]

Answer:

If a = 3

a -7 = -4

Step-by-step explanation:

Here, we want to find the value of a -7 given that a = 3

To find this value, we are going to make a substitution

We simply substitute 3 for the value of a

we have this as;

3 -7 = -4

3 0
3 years ago
Which equations represent the line that is parallel to 3x − 4y = 7 and passes through the point (−4, −2)? Check all that apply.
jonny [76]
First, we find the slope of the given line.

<span>3x − 4y = 7

-4y = -3x + 7

y = (3/4)x - 7/4

The slope of the given line is 3/4.
The slope of the parallel line is also 3/4.

Now we need the equation of the line that has slope 3/4 and passes through point (-4, -2),

We use the point-slope form of the equation of a line.

y - y1 = m(x - x1)

y - (-2) = (3/4)(x - (-4))

y + 2 = (3/4)(x + 4)     <---- check option E. Is the fraction 3/4 not there?

y + 2 = (3/4)x + 3

y = (3/4)x + 1

4y = 3x + 4

3x - 4y = -4    <------ this is choice B.
</span>
8 0
3 years ago
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