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sergejj [24]
3 years ago
15

For each order pair ,determine whether is it a solution to 7x+4y=-23

Mathematics
1 answer:
trasher [3.6K]3 years ago
5 0

Simplifying

7x + -4y = 23


Solving

7x + -4y = 23


Solving for variable 'x'.


Move all terms containing x to the left, all other terms to the right.


Add '4y' to each side of the equation.

7x + -4y + 4y = 23 + 4y


Combine like terms: -4y + 4y = 0

7x + 0 = 23 + 4y

7x = 23 + 4y


Divide each side by '7'.

x = 3.285714286 + 0.5714285714y


Simplifying

x = 3.285714286 + 0.5714285714y

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In the right triangle shown, <A= 30° and BC =6
ser-zykov [4K]

Answer:

AB = 150 degrees

Step-by-step explanation:

Right triangle has a 90 degree angle. One angle is 30 degrees. There is 180 degrees in one triangle. 180-30= 150.

<h3>Hope this is Helps!!!!</h3>
4 0
3 years ago
Heather finished the 12-kilometer race in 2 hours. If Heather kept her pace constant, what was her rate? A. 24 km/hr. B. 14 km/h
andriy [413]

Answer: D, 6km/hr.

Step-by-step explanation:

Heather can finish a 12-kilometer race in 2 hours, and now we have to find how many kilometers she can ride/run at in 1 hour.

How many hours can Heather run in 1 hour? To solve that, we can use the equation 12 ÷ 2.

12 ÷ 2 = 6.

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7 0
3 years ago
Zab is x years old now. What is his age 7 years from now ?​
kakasveta [241]

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x + 7

Step-by-step explanation:

N/A

3 0
3 years ago
Read 2 more answers
A diver went 25.65 feet below the surface of the ocean and then 16.5 feet further down he then rose 12.45 feet. Write and solve
trasher [3.6K]
X= 25.65 + 16.5 - 12.45
X=29.70
6 0
3 years ago
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A fivey sequence is a sequence of positive integers which adds up to 5. For example, 2, 2, 1 and 2, 1, 2 are two different fivey
vlabodo [156]

The total number of possible fivey sequences are; 6

<h3>How to solve a sequence?</h3>

We are told we are dealing with a fivey sequence which means that all the terms of the sequence must be positive integers and they must add up to 5.

Now, the possible numbers that can be used are;

1, 2 and 3.

If we start with 3, number of possible sequences is; 1

If we start with1, number of possible sequences is; 3 ways

If we start with 2, number of possible sequences is; 2 ways

Thus;

Total number of fivey sequences is 1 + 2 + 3 = 6 possible sequences

Read more about Sequence at; brainly.com/question/13612968

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2 years ago
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