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goldenfox [79]
3 years ago
6

Solve linear equations 1/2x+y=-6 and y=3/5x+5

Mathematics
1 answer:
ser-zykov [4K]3 years ago
5 0
1/2x+y=-6   y=3/5x+5

substitute
1/2x+3/5x+5=-6

11/10x+5=-6

11/10x=-11
11x=-110
x=-10
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I need help! please is expression equivalent
nikitadnepr [17]

No the value of functions are not same .

What is function in math?

  • A quantitative expression, rule, or law that describes the link between an independent variable and a dependent variable (the dependent variable).
  • In mathematics, functions occur widespread, and they are essential for defining physical links in the sciences.
  • A function is a type of rule that generates one output for a single output.
  • This is represented by the equation y=x2. Any inputs for x result in an output for y. Given that x is the input value, we would state that y is a result of x.

  - 5 × ( -5)⁻⁹  =  -5 ×  1/-5⁹  ⇒ 1/5⁸  = 1/390625

[ -5 × (-5)]⁻⁹ = [25]⁻⁹  = 1/25⁹ = 1/3814697265625

No the value of functions are not same .

Learn more about function

brainly.com/question/12431044

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6 0
1 year ago
The students in chemistry class have 75 milliliters of a pure acid which must be diluted to a solution that is 10% acid. How man
lana66690 [7]

Answer:

Add W ml

75*100 + W*0 = (75+W)*10

6 0
3 years ago
The temperature, T, for an oven can be described by the equation T = 44m +67 for the
My name is Ann [436]

Answer:

T-intercept = 67

Step-by-step explanation:

Given

T = 44m + 67

Required

Calculate and interpret the t-intercept

To calculate the t-intercept, we simply set the number of minutes (m) to 0

i.e. substitute 0 for m in T = 44m + 67

T = 44 * 0 + 67

T = 0 + 67

T = 67

Hence, the T-intercept is 67

The interpretation is that the initial temperature when the oven is turned on is 67 degrees

8 0
3 years ago
Express 78 billion in scientific notation
ryzh [129]

Answer:

7.8 * 10^{10} is scientific notation of 78 billion

Step-by-step explanation:

For scientific notation , follow the following notation:

a * 10^{b} -------->(equation 1)

Let,  a^{'} = 78 billion

a^{'} = 78000000000

a^{'} = 78000000000.0

In standard form

a = 7.8000000000

or

a = 7.8

As decimal point move 10 places from right to left, therefore

b = 10

Put the value of 'a' and 'b' in (equation 1)

7.8 * 10^{10} is scientific notation of 78 billion

6 0
3 years ago
Convert 13 weeks to seconds.
dimaraw [331]

The value of 13 weeks in seconds is 7862400 seconds

<h3>Conversion of weeks to seconds</h3>

In order to convert weeks to seconds, we will use the following conversion factor

1week = 7 days

13weeks = 91days

<u>Convert days to hours</u>

Since 24 hours = 1 day, then;

91 days = (91*24)

91 days = 2184 hours

Convert hours to seconds

1 hour = 3600secs

Hence 2184 hours = (2184*3600)

2184 hours = 78624000 seconds

Hence the value of 13 weeks in seconds is 7862400 seconds

Learn more on conversion on weeks to seconds here: brainly.com/question/11947673

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8 0
1 year ago
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