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Elanso [62]
3 years ago
7

What is the value of x in the equation x – y = 30, when y = 15?

Mathematics
2 answers:
SVEN [57.7K]3 years ago
5 0
<span>x – y = 30, when y = 15
x - 15 = 30
x = 30 + 15
x = 45

answer: </span><span>when y = 15, x = 45</span>
denis23 [38]3 years ago
4 0
The answer would be 45.

1. Add 15 to both sides (x = 30 + 15)

2. Simplify 30 + 15 to 45 (x = 45).
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The junior and senior classes at Central High School were asked to choose a destination for a field trip. The results are shown
Ann [662]

Solution:

We are given below frequency table:

             Amusement-Park      Museum         Broadway-Show         Total

Juniors                57                      21                      42                          120

Seniors                64                     44                      58                          166

Total                    121                     65                      100                        286

We have to find the percentage of surveyed students who chose the amusement park.

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3 0
3 years ago
CAN SOMEONE MULTIPLY THIS PLEASE, ITS URGENT
____ [38]

Let's factorise it :

\: {\qquad  \dashrightarrow \sf   ( {x}^{3}   -  5)(x + 3)  }

\: {\qquad  \dashrightarrow \sf    {x}^{3} (x + 3) + [-5(x + 3)]  }

Using Distributive property we get :

\: {\qquad  \dashrightarrow \sf    {x}^{3} +  {3x}^{3}   + ( - 5x - 15)  }

\: {\qquad  \dashrightarrow \sf    {x}^{3} +  {3x}^{3}   - 5x - 15 }

\: {\qquad  \dashrightarrow \sf    4{x}^{3}  - 5x - 15 }

⠀

Therefore,

\: {\qquad  \dashrightarrow \sf   ( {x}^{3}   -  5)(x + 3)   =4{x}^{3}  - 5x - 15}

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Answer:

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Step-by-step explanation:

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