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daser333 [38]
3 years ago
12

How many solutions does the following equation have?

Mathematics
1 answer:
IrinaK [193]3 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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anyanavicka [17]
V = 20.88 km / h  ( velocity )
d = 145 km ( distance )
Velocity formula: v = d / t
t = d / v  ( time )
t  = 145 km : 20.88 km/h
t = 6.94444 h
We have to multiply 0.94444 by 60 minutes.
0.94444 · 60 = 56.67 ≈ 56 minutes 40 seconds
Answer:  It would take 6 hours 56 minutes and 40 seconds.
4 0
3 years ago
<img src="https://tex.z-dn.net/?f=5%20%2B1" id="TexFormula1" title="5 +1" alt="5 +1" align="absmiddle" class="latex-formula"> x
soldi70 [24.7K]

Answer:

60

Step-by-step explanation:

Put in Parentheses.

(5 + 1) x 10 =

Solve numbers inside parentheses.

5 + 1 = 6

Now we have 6 x 10.

6 x 10 = 60

8 0
2 years ago
What is sum of the vectors, (4.-5) and (10,2)?<br><br> (-6, 7)<br> (14,-3)<br> (14,7)<br> (15,6)
balu736 [363]

Answer:

(14,-3)

Step-by-step explanation:

To sum vectors, simply sum values at each position.

The sum is (4+10, -5+2) = (14,-3)

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2 years ago
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Can someone please help me with this question
kondor19780726 [428]
A. 

To solve, you need to get the variable by itself. 
Order of operations:
Square root both sides.
(x-5)= plus/minus root 3, as 3 is not a perfect square.
Now you need to add 5 to both sides to get it to disappear on the side with the x.

x=root3 +or - 5, which can be rearranged so that 5 is the first term.
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Grover Elementary School is getting ready for the annual Penny Drive. The table below shows the target goals for the drive at th
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The slope of the function is $400.

<h3 /><h3>Definition of slope of a function</h3>

The slope of a function is the rate of change of the dependent variable with respect to the independent variable. The equation that represents a function is: y = mx + b

Where:

  • y = dependent variable
  • m = independent variable
  • x = slope
  • b = constant

Looking at the total money raised, the amount of money increases by 400. This is the slope.

To learn more about slope, please check: brainly.com/question/2491620

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