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3 years ago

Plz solve I’ve been stuck on how to start it and I just can’t

Mathematics

2 answers:

AleksAgata [21]3 years ago

7 0

Answer:

x and y = 0

the question looks weird and almost wrong because when you subtract the equations, you are left with nothing

Step-by-step explanation:

Multiply the top equation by 3 to make the -x a -3x instead.

Then do the top equation - the bottom equation

At this point you should be left with x

Nookie1986 [14]3 years ago

4 0

I think it is correct answer

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LuckyWell [14K]

Answer:

Step-by-step explanation:

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3 years ago

Xander and Pedro are at an ice cream social.for every scoop of ice cream,Xander uses 1/8 cup of fruit topping.Pedro uses one mor

Kaylis [27]

Answer: 2 and 3 scoops

Step-by-step explanation:

i guessed :/

7 0

3 years ago

Read 2 more answers

What is negative 7/10 minus 2/5

Dmitriy789 [7]

The answer you are looking for is -11/10 or - 1 1/10.

To find this answer you must first make the denominators the same. To do this, multiply 2/5 by 2/2 to get 4/10. Finally, subtract the two fractions, keeping in mind the denominators stay the same. -7/10 - 4/10 = -11/10 or - 1 1/10.

I hope this helps!

4 0

3 years ago

What's the explicit rule for the sequence 3, -6, 12, -24, 48, ...?

777dan777 [17]

Answer:

$\sf \dfrac{-3}{2}(-2)^n$

Step-by-step explanation:

Explicit formulas are used to represent all the terms of the geometric sequence with a single formula.

$\sf \boxed{\bf t_n = ar^{n-1}}$

a is the first term.

r is the common ratio.

r = second term ÷ first term.

3 , - 6 , 12, - 24, 48 ,........

a = 3

r = -6 ÷ 3 = -2

$\sf t_n = 3*(-2)^{(n-1)}\\\\$

$\sf = 3*(-2)^{n}*(-2)^{-1}\\\\ =3*(-2)^n*\dfrac{-1}{2}\\\\= \dfrac{-3}{2}(-2)^n$

Check:

$\sf t_1 =\dfrac{-3}{2}*(-2)^1=\dfrac{-3}{2}*(-2) = 3\\\\\\t-2 = \dfrac{-3}{2}*(-2)^2 = \dfrac{-3}{2}*4=-6\\\\\\t_3=\dfrac{-3}{2}*(-2)^3=\dfrac{-3}{2}*(-8)=12$

4 0

2 years ago

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The graph shows the money that Marco earns for different numbers of days worked. How much money does he earn per day?

egoroff_w [7]

Answer:

You didnt put a graph on here but all you gotta do, is add each day up then divide by how many days he works and you got your answer

Step-by-step explanation:

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3 years ago