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MArishka [77]
3 years ago
9

Greatest percent

Mathematics
1 answer:
cricket20 [7]3 years ago
8 0

Answer:

Percent change from 15 to 18.

 

You need to divide the numbers, but which one goes on top?

 

You know the number increases from 15 to 18, so the percentage must be greater than 100%.

 

The only way to get a number greater than 100% is to put the larger number on top.

 

Therefore, the answer is 18/15 = 1.2

 

Multiply by 100 to get a %

 

1.2 * 100 = 120%

2. Calculate percentage change

from V1 = 5 to V2 = 8

ans= 60%

overall answer gain of 15 yards and 18 yards

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Solve by elimination x-5y=35 and 3x-6y=51
IrinaVladis [17]

Answer: x=5 y=-6

(5,-6)

Step-by-step explanation:

Solve by elimination

\begin{bmatrix}x-5y=35\\ 3x-6y=51\end{bmatrix}

multiply x-5y=35 by 3

= 3x-15y=105

\begin{bmatrix}3x-15y=105\\ 3x-6y=51\end{bmatrix}

3x-6y=51

-\underline{3x-15y=105}

9y=-54

divide 9 on both sides

y= -6

Now solve for x

you must plug in -6 for y in either equations

i plugged in -6 for y in 3x-15y=105

3x-15\left(-6\right)=105

3x+15\cdot \:6=105

15\cdot \:6=90

3x+90=105

subtract 90 on both sides

3x=15

\frac{3x}{3}=\frac{15}{3}

x=5

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4 years ago
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How much sales tax will Justin pay on a Computer priced at $1,723.42 if the sales tax rate is 9.25%?
kirill115 [55]

Answer:

$1882.84

Step-by-step explanation:

Total cost = 109.25% = 109.25% x $1723.42 = $1882.84 (2dp)

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3 years ago
Can anyone just explain how to do a distant rate time problems because I'm confused about them
Ulleksa [173]

Answer:

The formula for distance problems is: distance = rate × time or d = r × t. Things to watch out for: Make sure that you change the units when necessary. For example, if the rate is given in miles per hour and the time is given in minutes then change the units appropriately.

Step-by-step explanation:

Here is an example.

Two cars started from the same point, at 5 am, traveling in opposite directions at 40 and 50 mph respectively. At what time will they be 450 miles apart?

After t hours the distances D1 and D2, in miles per hour, travelled by the two cars are given by

D1 = 40 t and D2 = 50 t

After t hours the distance D separating the two cars is given by

D = D1 + D2 = 40 t + 50 t = 90 t

Distance D will be equal to 450 miles when

D = 90 t = 450 miles

To find the time t for D to be 450 miles, solve the above equation for t to obtain

t = 5 hours.

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4 0
3 years ago
Someone please help me
Ugo [173]

Answer:

200

Step-by-step explanation:

idk really I just remember learning this

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