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RUDIKE [14]
2 years ago
14

_____% of 145 = 75 48.3% 193.3% 76.5% 51.7%

Mathematics
1 answer:
Pavlova-9 [17]2 years ago
7 0
48.3 i’m pretty sure! your welcome:)
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The equation x 2 + 10 x + 25 = 0 has one solution.
Natalija [7]

Answer:

Yes

Step-by-step explanation:

X2+10x+25=0

So let's solve

10=5,5

25=5,5

So let's continue

X2+5x+5x+25

Let's factorise

X(x+5)+5(x+5)=0

(X+5)(x+5)=0

So

X+5=0

Substrate 5 from both sides

X=-5(twice)

So the answer is yes

4 0
3 years ago
3x+7=5x-21
schepotkina [342]
Just get only one of  the placeholder on one side by itself
and do the same thing to both sides so it stays equal
3x+7=5x-21
add 21 to both sides
3x+28=5x
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28=2x
sivide both sides by 2
14=x
7 0
3 years ago
Read 2 more answers
Patrice user a $15 gift certificate when she purchased a pair of sandals. After 8% sales tax was applied to the price of the san
ASHA 777 [7]

Answer:

The sandals cost before tax $25.

Step-by-step explanation:

Let us assume that the sandals cost before tax $x.

So, after giving an 8% tax the price will be x(1 + \frac{8}{100}) = 1.08x.

If the $15 gift certificate on that after tax price and the final cost of the sandals becomes $12, then

1.08x - 15 = 12

⇒ 1.08x = 27

⇒ x = $25

Hence, the sandals cost before tax $25. (Answer)

4 0
3 years ago
If you wanted to predict the value of the y variable when the x variable is 15, you would be _____ the data.
Natalija [7]
Extrapolation is the process by which a value is estimated by using a previously known set of numbers. Interpolation is where a value is estimated between two known values. In this case, if you wanted to predict the value of the y-variable when the x-variable is 15, you would be extrapolating beyond the known data-set. 
8 0
3 years ago
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PLEASE NO LINKS.
Kamila [148]

Answer:

Step-by-step explanation:

Sustituye la variable  

y

con  

|

x

−

3

|

+

|

x

+

2

|

−

|

x

−

5

|

en la expresión.

s

i

−

2

3 0
3 years ago
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