All categories

2 years ago

The length of the base of an isosceles triangle is x. The length of a leg is 4x-6. The perimeter of the triangle is 60. Find x.

Mathematics

1 answer:

lbvjy [14]2 years ago

3 0

Answer:

Perimeter of a triangle = add all sides

Both the legs of the isosceles triangle are always EQUAL.

x+4x-6+4x-6 = 60

9x-12 = 60

9x = 60+12

9x = 72

x = 8

You might be interested in

What is the equation of a line passing through (-3,7) and having a slip of -1/5

MrRa [10]

Answer:

$\large\boxed{D.\ y=-\dfrac{1}{5}x+\dfrac{32}{5}}$

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

We have the slope m = -1/5. Substitute:

$y=-\dfrac{1}{5}x+b$

Put the coordinates of the given point (-3, 7) to the equation:

$7=-\dfrac{1}{5}(-3)+b$

$7=\dfrac{3}{5}+b$ subtract 3/5 from both sides

$6\dfrac{2}{5}=b\to b=\dfrac{6\cdot5+2}{5}=\dfrac{32}{5}$

3 0

3 years ago

NEED HELP FAST PLEASE

natita [175]

Hey!

To solve this equation, we'd first have to apply the distributing rule to this equation.

Original Equation :
$( 3a - 2 )^{2}$

New Equation {Changed by Applying the Distribution Rule} :
$( 3a )^{2} - 2$ · 3a · 2 + $2 ^{2}$

And now we simplify.

Old Equation :
$( 3a ) ^{2} -2$ · 3a · 2 + $2 ^{2}$

New Equation {Old Equation Simplified} :
$9a ^{2}$ - 12a + 4

So, the equation $(3a - 2) ^{2}$ simplified is $9a ^{2}$ - 12a + 4.

Hope this helps!

- Lindsey Frazier ♥

5 0

3 years ago

Need help please with this question

SashulF [63]

Answer:

5/8

Step-by-step explanation:

5 0

3 years ago

Hey this is another question ill give you brainliest and 5 stars as well as a heart Asap pls

Dmitrij [34]

Answer:

e = s×0.72

Step-by-step explanation:

we need to find how much does a 1 song costs

so, 2.16 ÷ 3 = 0.72 $

4 0

2 years ago

Read 2 more answers

3 cups of pecans decorate the top of 12 pecan pie she puts an equal help you can sit on each pie how many cups of pecans does sh

lutik1710 [3]

3cups of peacans on 12 pie you dive 3into 12 and get 4 cups on each pie

6 0

3 years ago