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sleet_krkn [62]
4 years ago
8

What is the solution to 15 - 4y = -21 - y

Mathematics
1 answer:
Maurinko [17]4 years ago
8 0

Answer:

y = 12

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

15 - 4y = - 21 - y

15 + - 4y = - 21 + - y

- 4y + 15 = - y - 21

Step 2: Add y to both sides.

- 4y + 15 + y = - y - 21 + y

- 3y + 15 = - 21

Step 3: Subtract 15 from both sides.

- 3y + 15 - 15 = - 21 - 15

- 3y = - 36

Step 4: Divide both sides by - 3.

- 3y/- 3 = -36/- 3

y = 12

I am so sorry if it is long and confusing, but, I hope this still helps!

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SMART STUDENT PLEASE NEED GOOD MATH STUDENT​
tangare [24]

Answer:

Therefore 'x' is equal to 65.4°

Step-by-step explanation:

In Right Angle Triangle ABC

∠ B = 90°

AC = Hypotenuse = 12

CB = Adjacent Side = 5

To Find:

∠ C = x

Solution:

In Right Angle Triangle ABC Cosine Identity we have

\cos C = \frac{\textrm{side adjacent to angle C}}{Hypotenuse}\\

Substituting the values we get

\cos C = \dfrac{CB}{AC}=\dfrac{5}{12}

\angle C = \cos^{-1}(0.4166)=65.37=65.4\°

Therefore 'x' is equal to 65.4°

8 0
3 years ago
John is at a local bait shop; he wants to buy bait for his fishing trip. At the store, they are selling live bait for $12 a poun
galina1969 [7]

Answer:

x\geq3

12x+7y\leq63

y\geq0

Step-by-step explanation:

If we let x be the amount of live bait and y be the amount of natural bait, Then we can come up with the following inequalities;

We are told that John would like to get at least 3 pounds of live bait. At least 3 means 3 or more. Since x represents the amount of live bait, we have;

x\geq3

Moreover,we are informed that;

The store sells live bait for $12 a pound and natural bait for $7 a pound. x pounds of live bait would cost 12x while y pounds of natural bait would cost 7y. The total cost would thus be;

12x + 7y

but John only has a budget of $63. This implies that he can spend $63 at most, thus;

12x+7y\leq63

Finally we can have our last inequality as;

y\geq0

8 0
3 years ago
Can someone please check my answer thank you
Dima020 [189]

Answer:

(0, 2) and (- 1, 4)

Step-by-step explanation:

The solutions to the system of equations are at the points of intersection of f(x) and g(x)

These are at (0, 2) and (- 1, 4)



4 0
4 years ago
What is percent is 33 of 96
Ymorist [56]
34 percent is the answer

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