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ExtremeBDS [4]
3 years ago
15

In the equation y = 2(x + 5), if x is increased by 3, then y is increased by

Mathematics
1 answer:
Zielflug [23.3K]3 years ago
8 0
Y is increased by 6 because if you imagine x being 3 then y would = 16 but if you increase x by 3 making 6 then y would = 22 and 16 increased by 6 is 22
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*FIRST PERSON TO GET IT RIGHT AND ANSWER FIRST GETS BRAINLIEST*
polet [3.4K]

There are 23 sharks and 7 octopi in the aquarium

  • Let the number of sharks in the aquarium be x
  • Let the number of octopi in the tank be y

If the total number of animals in the tank is 30, therefore;

  • x + y = 30 ....................... 1

If the total number of legs in the tank is 171 with starfish having 5 legs and Octopus having 8 legs, the required expression will be:

  • 5x + 8y = 171 ................ 2

From equation 1, x = 30 - y ................... 3

Substitute equation 3 into 2 to have:

5(30-y) + 8y = 171

150 - 5y + 8y = 171

3y = 171 - 150

3y = 21

y = 7

Recall that x = 30 - y

x = 30 - 7

x = 23

Hence there are 23 sharks and 7 octopi in the aquarium

Learn more on simultaneous equation here: brainly.com/question/148035

8 0
2 years ago
Is (2,3) a solution of the system
seropon [69]

Answer:

Yes

Step-by-step explanation:

3 0
3 years ago
Please helppppp!!!!!!!!
Drupady [299]

Answer:

128 cm^2

Step-by-step explanation:

The area of a trapezoid is given by

A = 1/2 (b1+b2) h

where b1 and b2 are the lengths of the bases and h is the height

A =1/2( 10+22) * 8

A = 1/2 (32)8

  = 128

7 0
2 years ago
Read 2 more answers
Pls help with this please
Marina86 [1]
You have to do 2 5/8 4 times but in a picture or scrap
6 0
3 years ago
Read 2 more answers
20=6x+14<br><br><br> answer 0=6<br><br> true or false ?????
Roman55 [17]

Hey there!

Let's solve the equation.

20=6x+14

Subtract 14 from both sides.

6=6x

Divide 6 on both sides.

x=1

This is false.

I hope this helps!

~kaikers

4 0
3 years ago
Read 2 more answers
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