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Reptile [31]
3 years ago
7

PLEASE PLEASE I SUCK AT MATH AND ITS ALL DUE FRIDAY PLEASE 10 piont !!! Select all the correct systems of equations.

Mathematics
1 answer:
alekssr [168]3 years ago
4 0

Answer:

2x + y = 17

-6x = 3y - 51

Step-by-step explanation:

You get an infinite number of solutions when two equations are really just the same. This means you can convert one into the other simply by multiplying one to get the other.

In the above answer, if you multiply the above by -3 you get:

-6x -3y = -51

which is of course -6x = 3y - 51

So that is an example of a pair that has infinite solutions.

To find all of them, you'd carefully have to compare each 2 and see if there is a multiplier to convert one into the other. You can do that!

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If f(x) = x2 – 25 and g(x) = x – 5, what is the domain of (f/g)(x)?
Stels [109]
Choice b. is right because for x=5 will result this fraction undefined bc than for x=5 the denominator will be equal zero
5 0
3 years ago
Read 2 more answers
You might need:
Kruka [31]

This question is incomplete.

Complete Question

Astrid is in charge of building a new fleet of ships. Each ship requires 40 tons of wood, and accommodates 300 sailors. She receives a delivery of 4 tons of wood each day. The deliveries can continue for 100 days at most, afterwards the weather is too bad to allow them. Overall, she wants to build enough ships to accommodate at least 2100 sailors. How much wood does Astrid need to accommodate 2100 sailors?

Answer:

280 tons of wood.

Step-by-step explanation:

From the above question:

To make 1 ship = we require 40 tons of wood.

1 ship = can accommodate 300 sailors.

Step 1

If :

300 sailors = 1 ship

2100 sailors = y ships

Cross Multiply

300 × y ships = 1 ship × 2100 sailors

y ships = 2100 / 300

y ships = 7

Hence, 2100 sailors can occupy 7 ships.

Step 2

We are told in the question that:

Astrid wants to build enough ships to accommodate at least 2100 sailors. How much wood does Astrid need to accommodate 2100 sailors?

If:

1 ship = 40 tons of wood

Since 7 ships can accommodate 2100 sailors,

7 ships =

7 × 40 tons of wood = 280 tons of wood.

Therefore , Astrid needs 280 tons of wood to accommodate 2100 sailors.

6 0
4 years ago
Please help!! 4 and 7 is a wrong answer.
Marta_Voda [28]

the answer is A but im just guessing ya know?

4 0
3 years ago
Read 2 more answers
PLSSSSSSS HELPPPPPPPP AS SOOON AS YOU CANNN
ludmilkaskok [199]

Answer:

238.64 cm

Step-by-step explanation:


4 0
3 years ago
I have like five of these so I'm sorry.
myrzilka [38]

Answer:

z ≥ -5/6

Step-by-step explanation:

10z - 2 ≥ 4z - 7

6z ≥ -5

z ≥ -5/6

6 0
3 years ago
Read 2 more answers
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