2 years ago

XY=5n, YZ=2n, XZ= 91

Mathematics

2 answers:

miss Akunina [59]2 years ago

6 0

Answer: N=13

Step-by-step explanation:

Here, XY=5n, YZ=2n, XZ=91

If Y is between X and Z then

XZ= XY + YZ

91= 5n + 2n

7n= 91

n= 91/7

n=13

RoseWind [281]2 years ago

3 0

Answer:

Step-by-step explanation:

jgvvj

kbjbh

klb

ihnkbj

You might be interested in

What is the solution to this equation?

padilas [110]

Answer:

x=3

Step-by-step explanation:

10-3x+8x=25

-10 -10

-3x+8x= 15

5x=15

5x/5=15/5

x=3

6 0

4 years ago

Use the substitution method to solve the following system of equations:

Morgarella [4.7K]

3x + 5y = 3
x + 2y = 0

3x + 5y = 3
-3x -6y = 0

-y = 3
y = -3

x + 2y = 0
x + -6 = 0
x = 6

The answer is B (6,-3).

8 0

3 years ago

Read 2 more answers

On an algebra test ,the highest grade was 42 points higher than the lowest grade. The sum of the two grades was 138 find the low

Rashid [163]

$lowest = x \\ highest = x + 42$
$2x + 42 = 138$
$138 - 42$
$2x = 96$
$2x \div 2x \\ 96 \div 2$
$x = 48$
$48 + 42 = 90$
the lowest grade is 48, while the highest is 90.

3 0

3 years ago

What are the answers?

Leya [2.2K]

2.5m is one of them/

6 0

3 years ago

john is 35 years old,and his son is 5. how many years will john be exactly 3 times as old as his son?

motikmotik

(35+t)/(5+t)=3 --> 35+t = 15+3t --> 20=2t --> t=10 years

Dad: 45, son: 15 (works!)

6 0

3 years ago

Read 2 more answers