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Inessa05 [86]
3 years ago
10

All smart people help me...​

Mathematics
2 answers:
nadya68 [22]3 years ago
8 0

Answer:

A

Step-by-step explanation:

4x+5x=180

9x=180

x=20

Again, I didn't need to solve, but it's A

8090 [49]3 years ago
7 0

Answer:

4x+5x=180

It's D

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It takes a hose 2 minutes to fill a rectangular aquarium 12 inches long, 13 inches wide, and 14 inches tall. How long will it ta
rusak2 [61]

Volume of the first aquarium =  (12" x 13" x 14") = 2,184 inches³

Volume of the second aquarium = (32" x 34" x 35") = 38,080 inches³

The second aquarium has (38,080 / 2,184) = 17.44 times as much
volume as the first aquarium has.

So it'll take the hose  17.44 times as long to fill the second one

                              =  (17.44) x (2 minutes)  =  34.9 minutes.
8 0
3 years ago
If you are good at determining sequences please help! (Show work)
ziro4ka [17]

Answer:

-62.5008

Step-by-step explanation:

the pattern here is dividing by -5, so just continue dividing by -5 starting on -3 and continuing 4 more times. record each number and then add them together using a calculator. you will get -62.5008

Please mark brainliest :)

8 0
3 years ago
Watch help video Determine if the sequence below is arithmetic or geometric and determine the common difference ratio in simples
Helen [10]

Answer:

arithmetic

Step-by-step explanation:

common difference because -6

7 0
2 years ago
Read 2 more answers
Find the area of a triangle with a base length of 3 units and a height of 4 units.
eduard
A = 1/2bh
= 1/2(3)(4)
=1/2(12)
=6
The area of the triangle is: B) 6 units. 

Hope this helps!
4 0
3 years ago
Sam and Liam raced each other up and then down the hill. Sam's average speed up the hill was 1 mph, and his average speed down t
Radda [10]

So, we know that it takes Sam 1 mph up and 9 mph down and it takes Liam both 2 mph down and up the hill. So if we divide the 2 mph for Liam by 2 miles (the whole length of the hill)  we will get 1 or 1 hour. Then we do 1/1 (i don't know how to explain this part of why we do that, sorry) and than we do 1 / 9 and we get 1/9 so we add them and get 1 1/9 so that's Sam's time.

      So, Liam took one hour and Sam took 1 and 1/9 hours, in conclusion liam was faster

<h2> (I'm really sorry for my bad explaining, i tried my best)</h2>
8 0
3 years ago
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