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Scilla [17]
3 years ago
7

Write an expression for four times the product of -9 and x and then simplify it.

Mathematics
2 answers:
katrin2010 [14]3 years ago
5 0
4(-9*x)

Multiply the two numbers
-36x

Final answer: -36x
yulyashka [42]3 years ago
3 0

4 *(-9*x) =

-9*x = -9x

4*-9x =

-36x


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A student has some​ $1 and​ $5 bills in his wallet. he has a total of 1919 bills that are worth ​$5959. how many of each type of
uysha [10]
X = ones, y = fives

x + y = 19....x = 19 - y
x + 5y = 59

19 - y + 5y = 59
19 + 4y = 59
4y = 59 - 19
4y = 40
y = 40/4
y = 10 <=== there are 10 five dollar bills

x + y = 19
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x = 19 - 10
x = 9 <=== there are 9 one dollar bills
4 0
3 years ago
Use the conditional statement to answer the question.
Flura [38]

We have been given a conditional statement and we are asked to find out whether this statement can be written as a bi-conditional statement or not.

First of all we will see what a bi-conditional statement is? A bi-conditional statement is a statement when the statement and its converse both are true. The first part of the statement tells a hypothesis and the last part tells us the conclusion of that hypothesis.

Since we know that 2 is a prime number and its not odd, so our given statement is false.

Now look at the converse of this statement. We can see by counter example of 9 that 9 is an odd number but it is not prime number.

Therefore, option D is the correct choice.


8 0
3 years ago
Read 2 more answers
Solve the system of equations using the method of your choice
Vsevolod [243]

Answer:

(-3, -1); x = -3; y = -1

Step-by-step explanation:

-3x + 5y = 4; x + y = -4

solving via substitution

rearrange second equation: y = -x - 4

-3x + 5(-x - 4) = 4

-3x - 5x - 20 = 4

-8x -20 = 4

-8x = 24

x = -3

- 3 + y = -4

y = -1

(-3, -1)

Check

- 3 + -1 = -4

5 0
2 years ago
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Gekata [30.6K]

Answer:

50

Step-by-step explanation:

i did and the teachet said it is coorrexf to give put

7 0
2 years ago
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HELP PLEASE I NEED HELP !
DanielleElmas [232]

Answer:

G

Step-by-step explanation:

out of a total of 280 spinners as the overall.

3/40 were defective

280 * 3/40 = 21

8 0
2 years ago
Read 2 more answers
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