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daser333 [38]
4 years ago
12

How many solutions does the following equation have?

Mathematics
1 answer:
IrinaK [193]4 years ago
7 0
Answer:
Exactly one solution

Explanation:
The first step we need to take to find the answer is to find the value of y.

7(y+3)=5y+8
Expand the parentheses
7y+21=5y+8
Subtract both sides by 21
7y+21-21=5y+8-21
7y=5y-13
Subtract both sides by 5y
7y-5y=5y-13-5y
2y=-13
Divide both sides by 2
2y/2=-13/2
y=-6.5

Now, we plug y back into the original equation.

7(y+3)=5y+8
7(-6.5+3)=5(-6.5)+8
Expand the parentheses
-45.5+21=-32.5+8
-24.5=-24.5

Because both sides of the equation is equal and the equation is true, we can conclude that the equation has one solution.

I hope this helps!
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find the slope and y intercept for the following equation by writing it in the form y=mx+b -8x+y=5 someone help please
vichka [17]

Answer:

slope = 8, y- intercept = 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + b ( m is the slope and b the y- intercept )

Given

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y = 8x + 5 ← in slope- intercept form

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3 years ago
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Six more than five times a number (x) is at least twenty-one
I am Lyosha [343]
The answer to this would be 5x+6>=21. Just wanted points :P
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The diagonal of a square is 27 cm long. The diagonal of a smaller square is 12 cm long. What is the difference between the lengt
kykrilka [37]

length of big square

\sqrt{27}  = 5.2

length of small square

\sqrt{12 }  = 3.5

difference between length of two square

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3 years ago
A group of 140 tourists are going on a tour. the tour guide rents 15 vans. each van hold 9 tourists
KengaRu [80]
First, let's write our division problem:

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The remainder in this problem is the number of people left over after the 15 vans are filled with 9 people each. We can use this answer to determine that the guides did not rent enough vans, as there will be 5 people who cannot fit in the 15 vans they rented.
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Which type of car had the largest range in monthly sales? Explain how you came up with your answer.
Hunter-Best [27]

Answer:

Used car have the highest range of 75

Step-by-step explanation:

Yeah the type of car that have the highest range In monthly sales.

we know that

The range is the difference between the highest and the lowest value

First we,

calculate the range in monthly sales for the new car

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Secondly,we

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