All categories

3 years ago

Help plz:))) I’ll mark u brainliest

Mathematics

2 answers:

Papessa [141]3 years ago

4 0

Answer:

25x = 75 (Because they are alternate interior angles)

=> x = 75/25

=> x = 3

So, x = 3

Because 25x is equal to 75, the two lines (u and v) are parallel

gulaghasi [49]3 years ago

4 0

180-75 = 105

180-105 = 75

75/25 = 3

You might be interested in

18 POINTS! At the AoPS office, mice vary inversely with cats, that is, mice=k/cats, for some value of k. When there are 3r-19 ca

Blizzard [7]

Answer:

k=30

Step-by-step explanation:

The number of mice vary inversely with cats. This is written as:

$Mice \propto \dfrac{1}{Cat} \\Mice = \dfrac{k}{Cat}$

When there are 3r-19 cats, there are 2r+1 mice

$2r+1 = \dfrac{k}{3r-19}\\$Cross multiply$\\k=(3r-19)(2r+1)$

When there are 6r-27 mice, there are r-5 cats.

$6r-27 = \dfrac{k}{r-5}\\$Cross multiply$\\k=(6r-27)(r-5)$

Taking the values of k above, we have:

$k=(3r-19)(2r+1) =(6r-27)(r-5)\\(3r-19)(2r+1) =(6r-27)(r-5)\\6r^2+3r-38r-19=6r^2-30r-27r+135\\$Collect like terms\\6r^2-6r^2+3r+30r-38r+27r-19-135=0\\22r-154=0\\22r=154\\$Divide both sides by 22\\r=7$

Therefore:

$k=(3r-19)(2r+1) \\=(3*7-19)(2*7+1)\\=(21-19)(14+1)\\=2*15\\k=30$

8 0

3 years ago

When a number is decreased by 23, the result is -9. find the number

Akimi4 [234]

14
subtract 9 from 23. you get 14, 14-23=-9

8 0

3 years ago

I have the area of a circle but how do i find it’s radius

Vilka [71]

Answer:

The radius of the circle is half its diameter. It's the length from the center point straight out to the edge.

8 0

3 years ago

What is the time 2 hours after 10.30 will be?<br>

Natasha2012 [34]

Answer: 2 hours after 10:30 is 12:30?

4 0

3 years ago

HELP ME PLS I NEED ANSWERS

andrezito [222]

7: d
8:d
9:c
10:c

Quadrant 1(I): both numbers are positive
Quadrant 2(II); negative number first then positive number last
Quadrant 3(III): both numbers are negative
Quadrant 4(IV): Positive number first then negative number last

4 0

3 years ago