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3 years ago

Evaluate x(y-z) for x =3 y =9 and z =2

Mathematics

2 answers:

AnnZ [28]3 years ago

8 0

Answer:

Step-by-step explanation:

Substitute.

We are given x = 3, y = 9 and z = 2

3(9-2) = 3(7) = 21

lianna [129]3 years ago

7 0

Answer:

Step-by-step explanation:

Substitute the given values into the equation.

x(y-z)

x is equal to 3, y is equal to 9 and z is equal to 2. Substitute 3 in for x, 9 for y and 2 for z.

3(9-2)

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition and Subtraction

Subtract inside of the parentheses first.

3(7)

Multiply 3 and 7

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Joseph earns $15 for every lawn he mows. Is the amount of money he earns proportional to the number of lawns he mows? Make a tab

Vedmedyk [2.9K]

Given that Joseph earns $15 for every lawn he mows.

so if he mows lown 1 time then his earning = $15

if he mows lown 2 time then his earning = $15*2= $30

if he mows lown 3 time then his earning = $15*3= $45

if he mows lown 4 time then his earning = $15*4= $60

if he mows lown 5 time then his earning = $15*5= $75

So the required table will be:

From the table we can see that Joseph's earning increases by $15 each time so we can say that YES, the amount of money he earns proportional to the number of lawns he mows.

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lesya692 [45]

Answer:

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geniusboy [140]

Answer:

The series of transformations that moves pentagon FGHIJ onto pentagon F'G'H'I'J' is;

C. Translation, translation

Step-by-step explanation:

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3 years ago

(x-4)*(x-9)=0 what is x

Strike441 [17]

Answer:

x either equals to 4 of 9 so you can write it like x=4, 9

Step-by-step explanation:

Start by simplifying each sides of the equation.

x^2-13x+36=0

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(x-4)(x-9)=0

Set factors equal to 0

x-4=0 or x-9=0

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