I had help but still don't understand plz help

Mathematics

1 answer:

erica [24]3 years ago

7 0

Two parallel lines are intersect by the same line, and the angles shown lie on the same orientation about the intersection so the angles are equal to each other...which means:

9x+21=10x+10 subtract 21 from both sides

9x=10x-11 subtract 10x from both sides

-x=-11 divide both sides by -1

x=11

You might be interested in

In how many map squares did we spot more than 29 plant species

Katena32 [7]

Answer:

10 map squares.

Step-by-step explanation:

We have been given a histogram, which represents the plant species spotted in the animal reserve.

The x-axis represents the number of plant species and y axis represents the number of map squares.

We can see that 0 to 9 species are spotted in 1 map square.

10 to 19 and 20 to 29 plant species are spotted in 2 map squares.

To find the number of map squares that spot more than 29 plant species, we will count number of map squares that spot 30 to 49 plant species as 30 to 49 numbers are more than 29.

We can see from our histogram that 4 map squares spot 30 to 39 plant species and 6 map squares spot 40 to 49 plant species.

$\text{Total number of map squares that spot more than 29 plant species}=4+6$