All categories

2 years ago

XZ=n, WZ=2x-5, and the perimeter of ΔXWZ is 20. What is the value of n?

Mathematics

1 answer:

Sergio039 [100]2 years ago

3 0

Answer:

Step-by-step explanation:

Since it's an isosceles triangle, WX=WZ= 2n-5

Perimeter = n + (2n-5) + (2n-5)

= 5n - 10

The Perimeter is given to be 20

5n - 10 = 20

5n = 30

n = 6

You might be interested in

The base of an isosceles triangle is 2 cm. The perimeter of the triangle is 10 cm.

cluponka [151]

Answer and Step-by-step explanation:

$Greetings!$

$Let's~solve~your~question!$

$To~find~the~length~of~equal~sides~of~an~isosceles~triangle,~we~use~the~following\\formula.$

$\boxed{~P=2a+b~}$

$Now,~solving~for~``a":$

$P=\frac{P}{2} -\frac{b}{2}$

$=\frac{10}{2}-\frac{2}{2}$

$=5-1$

$=4$

$Thus,~each~equal~sides~of~an~isosceles~triangle~is~4cm.$

$Hope~my~answer~helps~and~have~a~blessed~day~ahead!$

$-Isabelle~Williams$

8 0

2 years ago

Slope= -1/2, y-intercept = 4

navik [9.2K]

Answer:

y=-1/2x+4

Step-by-step explanation:

y=mx+b

where m=slope and b=y-intercept

y=-1/2x+4

5 0

2 years ago

If the velocity of a bicycle is 10 m/s how long will it take to cover a distance of 18 km<br>

Sergeeva-Olga [200]

Answer:

time taken=1800 seconds

Step-by-step explanation:

velocity=v=10m/s

distance=S=18km=18×10³m=18000m

t=?

as we know that

velocity= $\frac{distance covered}{time taken}$

velocity×time taken=distance covered

now here we have to find time

time taken= $\frac{distance covered}{velocity}$

time taken= $\frac{18000m}{10m/s}$

time taken=1800seconds

6 0

2 years ago

Find the area of the triangle. ANSWERS: A) 84 m2 B) 66 m2 C) 42 m2 D) 132 m2

Daniel [21]

Answer:

Step-by-step explanation:

........

4 0

2 years ago

The product of 8 and a number algebraic expression

dybincka [34]

Answer: 8x

Step-by-step explanation:

Product stands for multiplication, so we need to use (×)

Let x = the number.

----------------------------------------------

The product of 8 and a number

8 × x=8x

3 0

3 years ago

Read 2 more answers