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zzz [600]
3 years ago
13

Y+6=15 and (y+6) 3=15 equivalent expressions

Mathematics
1 answer:
ryzh [129]3 years ago
6 0

Answer:

They are not equivalent expressions

Step-by-step explanation:

y + 6 = 15

y = 9

3(y + 6) = 15

y + 6 = 5

y = -1

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Among 64 students, 28 of them like Science, 41 like Mathematics and 20 like
den301095 [7]

Step-by-step explanation:

calculate

64 – 28 – 41 – 20 + 24 + 12 + 10

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3 years ago
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Write a rule in function notation for each situation:
algol [13]

Answer:

1. \bold{S=f(P) = 0.07P}

2. x = 16

3. Part 1: P is the independent variable and S is the dependent variable.

Part 2: x is the independent variable and y is the dependent variable.

Step-by-step explanation:

1. To write the function notation for:

Sales tax is 7% of the total price.

Let the total price be P.

And sales tax be S.

As per the given statement:

S = 7\% \ of\ P\\\Rightarrow S =\dfrac{7}{100}P\\\Rightarrow S=0.07P

Writing it in the function notation:

\bold{S=f(P) = 0.07P}

2. To find the value of x such that f(x) = 14 and

f(x) = \dfrac{1}4x + 10

Putting the value of f(x) = 14

14 = \dfrac{1}4x + 10\\\Rightarrow \dfrac{1}4x =14-10\\\Rightarrow \dfrac{1}4x =4\\\Rightarrow x =4\times 4\\\Rightarrow \bold{x =16}

3. To find the dependent and independent variable.

Independent variables are those whose value is not dependent on the other variable's values.

Dependent variables are dependent on the value of other variables.

In question 1:

\bold{S=f(P) = 0.07P}

P is the independent variable.

S is the dependent variable.

In question 2:

If we write it as follows:

y=f(x) = \dfrac{1}4x + 10

x is the independent variable and y is the dependent variable.

5 0
4 years ago
Alan spent of his money. If he had €65 left, how much had he at first?​
Virty [35]
117 because it is right
7 0
3 years ago
8. Shelley and Jim sold tickets to the basketball game. Good seats were $3 each and not so good seats cost
OverLord2011 [107]

Answer:

100 not so good seats

50 good seats

Step-by-step explanation:

Let x represent good seats and y represent not so good seats

[i] 3x + 2y = 350

[ii] x+y = 150

[iii] y = 150 - x

substitute this to equation [i]

3x + 2y = .350

3x + 2 (150-x ) = 350

3x + 300 - 2x = 350

3x-2x = 350 - 300

x = 50 good seats

now substitute what you got to equation [iii]

y = 150 - 50 = 100 not so good seats

when we check the answer by using equation [i] we find that it is correct:

3x + 2y = 350

3(50) + 2(100) = 350

150 + 200 = 350

350 = 350

3 0
3 years ago
What greater 480 m or 48 hm
MariettaO [177]

Answer: 48hm

Step-by-step explanation:

48hm = 4800m

480m < 4800m

5 0
1 year ago
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