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andrey2020 [161]
3 years ago
15

Can anyone explain how this problem is done ?

Mathematics
1 answer:
Svetach [21]3 years ago
6 0

B

Step-by-step explanation:

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$84 increased by 120 percent
Elanso [62]
\rm 84+120\% \\ \\ 84+ \frac{12\not0\cdot84}{10\not0}= \\ \\ 84+ \frac{1008}{10}= \\ \\ 84+100,8=\\ \\ \bold{184,8\$}
5 0
3 years ago
How many solutions does x²+3x=3 have?
aev [14]

Answer:

2 (real) solutions.

Step-by-step explanation:

A quadratic always has two solutions, whether they are real or complex.

Sometimes the solution is complex, involving complex numbers (2 complex), sometimes they are real and distinct (2 real), and sometimes they are real and coincident (still two real, but they are the same).

In the case of

x^2+3x = 3, or

x² + 3x -3 = 0

we apply the quadratic formula to get

x =  (-3 +/- sqrt(3^2+4(1)(3))/2

to give the two solutions

{(sqrt(21)-3)/2, -(sqrt(21)+3)/2,}

both of which are real.

4 0
2 years ago
Pls help, its multiple choice btw
ryzh [129]

Answer:

the answer is c

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
The cost of a game that was p dollars with a 15% off coupon online plus $1.99 for shipping
Shtirlitz [24]
(p - 0.15p) + 1.99

This is the equation to solve.

p minus 15% of p, plus 1.99 for shipping costs.
8 0
3 years ago
Geometry math question please help
Pie

Line BE and KE are the same length, so set the 2 equations to equal and solve for P.

7p+7 = 37-3p

Add 3 p to both sides:

10p +7 = 37

Subtract 7 from each side:

10p = 30

Divide both sides by 10:

p = 30/10

p = 3

The answer is B.

8 0
3 years ago
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