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kiruha [24]
3 years ago
5

A line with a slope of -7 passes through the points (u,0) and (8,-7) what is the value of u?

Mathematics
1 answer:
laila [671]3 years ago
6 0

Answer:

u = 7

Step-by-step explanation:

Using the slope intercept formula:

\frac{y2 - y1}{x2 - x1}  = slope

Substitute our values from the points and the known slope:

\frac{-7 - 0}{8 - u} = -7

Now we multiply both sides by (8 - u) to isolate the x:

(8-u) x \frac{-7}{8 - u} = -7 (8 - u)

Next we add 56 to both sides:

-7 = -56 + 7u

Finish off by dividing both sides by 7:

7u = 49

u = 7

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Can someone please help me with this question?
liq [111]
To get the solution we are looking for we need to point out what we know.
1. We assume that 55 is 100% because its the output value of the task.
2. We assume that the x is the value we are looking for. 
3. If 100% = 55 so we can write it down as 100%=55 
4. We know that x% = 44 of the output value so we can write it as x%=44.
5. Now we have two simple equations: 1) 100%=55 2) x%=44 where left sides of both of them have the same units and both right sides have the same units so we can do something like that 100%/x%=55/44.
6. Now we just have to solve the simple equation and we will get the answer.
7. Solution for 44 is what percent of 55 100%/x%=55/44 (100/x)*x=(55/44)*x we multiply both sides of the equation by x 100= 1.25*x we divide both sides of the equation by (1.25) to get x 100/1.25=x 80=x now we have: 44 is 80% of 55! 

Quick answer = 44 is 80% of 55
Hope this helps! ;D
3 0
3 years ago
5^11 times 5^3 = 5^?
postnew [5]

Answer:

5^{13}

Step-by-step explanation:

5^{11}\times \:5^2

<u>Apply exponent rule : </u>a^b\times \:a^c=a^{b+c}

  • 5^{11}\times \:5^2=5^{11+2}
  • 5^{11+2}

<u>Add 11 +2 = 13</u>

  • <u />=5^{13}

<u>-----------------------</u>

<u>OAmalOHopeO</u>

<u>-----------------------</u>

7 0
3 years ago
Point A(7, 3) is translated to A’(16-19) what rule require the translation
vekshin1
New x = old x + 9
new y + old y - 22
7 0
4 years ago
When Shawn cleaned his room he found that the ratio of clean clothes to dirty clothes was 3 to 5 if 46 articles of clothing were
emmainna [20.7K]

Answer:

17.25

Step-by-step explanation:

Ratio of clean clothes to dirty clothes = 3 : 5

Clean clothes = 3

Dirty clothes = 5

Total ratio = 3 + 5 = 8

Total clothing article = 46

how many were clean

Number of clean clothes = ratio of clean clothes / total ratio × total clothing article

= 3/8 × 46

= 0.375 × 46

= 17.25

8 0
3 years ago
Steve built a rectangular  table that is 72 inches long and has a perimeter of 240 inches. What is the width of Steve's table? P
crimeas [40]
2(l+w)=P
72 x 2= 144
240 - 144= 96
96/2= 48
your answer would be 48in.
<u>check
</u>2(72+48)= 240
  144+96= 240
        240=240
4 0
3 years ago
Read 2 more answers
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