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Lesechka [4]
3 years ago
11

What is the solution to the equation 5(x + 4) = 5x – 3?

Mathematics
2 answers:
vodka [1.7K]3 years ago
8 0

Answer: C, there is no solution

Step-by-step explanation:

First you want to distribute on the left side of the equation. 5(x+4) = 5x - 3 when distributed becomes 5x + 20 = 5x - 3. Next you want to get rid of the variable on one side, but since its the same, when you subtract 5x from both sides you get 20 = -3, which is not equal, meaning there is no solution.

Alex73 [517]3 years ago
6 0

5(x+4)=5x-3\\5x+20=5x-3\\5x+20-5x+3=0\\0+23=0\\23=0

So the answer is C. There is no solution, because the equation is false

A and B choices both have the answer, the value of x.

D choice only when the equation is true like 2=2.

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Sarah invested £12000 in a unit trust 5 years ago, the value of the unit trust increased by 7% per annum for each of the last 3
trasher [3.6K]

Answer:

The current price of the unit trust =  £13,831.72

Step-by-step explanation:

Since it increased 7% per annum in last three years and decreased by 3% per annum before that, it implies that the unit trust decreased by 3% per annum for the first 2 years and then increased by 7% per annum for the next 3 years in the total 5 year period

The invested after 2 years = 12,000*(1-0.03)^2 = £11,290.8

This amount then grows by 7% for the next 3 years making it = 11,290.80*(1+0.07)^3 =  £13,831.7155 = £13,831.72 (Rounded to 2 decimals)

The current price of the unit trust =  £13,831.72 (Rounded to 2 decimals)

6 0
3 years ago
I don’t get this :(
muminat
Ok so for the first one it’s super simple I’m gonna do it as less complicated so it can help you :)


So first we need to convert the mixed number to an improper fraction


1 4/5 = 9/5


Now we need to reduce the numbers greatest common divisor which is 3

3/5 x 6

Now multiply the numbers


Your answer is 18/5 I hoped this help



Now for the second one

this one is a little more complicated and I don’t know how to make it sound easier so I’m gonna tell you the answer which is 580/21


The last one is the same steps we did for the first one which is 27/20



I hoped this helped you it is a little difficult but you’ll get the hang of it :)

5 0
3 years ago
10. The y-intercept uses which letter?<br> M<br> Z<br><br> B<br><br> Y
stira [4]

Answer:

if it were an equation it would be y = mx + b and B would be the y intercept and mx is slope.

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Please help! i really need to pass this
bagirrra123 [75]
Use the slope formula or since it's a straight line crossing the y axis at one, it means the y=1
8 0
3 years ago
Read 2 more answers
a digital camera costs $ 140 and the sales tax rate is 7.5 % what us tge total cost of the camera after tax round to the nearest
stiv31 [10]
$140(.075) = 10.5
10.5+140= 150.50
the total would be $150.50
5 0
3 years ago
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