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Mila [183]
3 years ago
7

What should be the first step in adding these equations to eliminate y? 12x-2y=-1

Mathematics
1 answer:
weqwewe [10]3 years ago
3 0
Ensure that y in both sets have a similar co-efficient
You might be interested in
Tristan has some dimes and some quarters. He has at least 20 coins worth at most $4.25 combined. If Tristan has 10 dimes, determ
Dovator [93]

Answer:

The maximum number of quarters that he could have is 13

Step-by-step explanation:

Let x represent the number of quarters he could have. If he has 10 dimes and has at least 20 coins, then

→ x + 10 >= 20

→ x >= 10    (1)

His coins worth at most $4.25. Also, it is known that 1 dollar is equal to 100 cents, 1 dime is equal to 10 cents and 1 quarter is equal to 25 cents.

→ (x * 25) + (10 * 10)  <= (4.25 * 100)

→ 25x  + 100 <= 425

→ 25x <= 325

→ x <= 13  (2)

If we combine the equation 1 and 2:

10 <= x <= 13

The maximum value of x is 13

7 0
3 years ago
Is there anymore answers? I know it is obtuse but I don’t know if it is anymore.
Arisa [49]

Answer:

Hope this helps

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Z<br> 1<br> t<br> = [?]√<br> X<br> = Z<br> 16
LiRa [457]

Answer: 8\sqrt{5}

Step-by-step explanation:

By the geometric mean theorem,

\frac{y}{16}=\frac{4}{y}\\\\y^{2}=64\\\\y=8

So, by the Pythagorean theorem,

8^2 + 16^2 = x^2\\\\320=x^2\\\\x=\boxed{8\sqrt{5}}

3 0
2 years ago
What is the probability that out of 60 lambs born on BaaBaa Farm, at least 33
saul85 [17]

Answer:

25.9 %

Step-by-step explanation:

IM SORRY IF IM WRONG!

4 0
2 years ago
Please help Maggie's brother is 3 years younger than twice her age. The sum of their ages is 30.
denpristay [2]
I’m not sure if this is correct but this is the way i would solve it.

first, make an equation with the given information

2x-3=30

Then, add three to both sides

2x=33

Finally, divide both sides by 2

x= 16.5


x represents the age of maggie so all you have to do is plug the solution into the equation to check your answer.

2(16.5)-3= 30
7 0
3 years ago
Read 2 more answers
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