I need help please thanks

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

3 0

Answer:

Use Symbolab i think thats how you spell it

Step-by-step explanation:

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Mary draws the number line below to repersent the solution set of the inequality 50-8t<90

marta [7]

50-8t<90
50-90<8t
-40<8t
8t>-40
t>-5
Solutions should go to the right.
Mary probably was solving it as following
50-8t<90
-8t<90-50
-8t<40 (here, when she divided both sides by -8, she had to change sign < to the sign >)
But she did not change the sign, and got
t<-5

4 0

3 years ago

The floor tiles come in red, blue, and black. There are 16 red, 5 blue, and. 4 black. What percent of the tiles are black?

alexandr402 [8]

16 % of tiles are black

Solution:

Given that floor tiles come in red, blue, and black

To find: percent of the tiles that are black

From given question,

number of red tiles = 16

number of blue tiles = 5

number of black tiles = 4