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irga5000 [103]
3 years ago
14

Find the value of the expression -x+y*z-y when x= -3 ; y= -2 and z=5

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0

Answer:

-15

Step-by-step explanation:

-3+-2*5-2=-15

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Last week at a​ festival, a man sold 5 times as many​ tie-dyed T-shirts as​ silk-screened shirts. He sold 228 shirts altogether.
kumpel [21]

Answer:

The man sold 190 tie-dyed T-shirts

Step-by-step explanation:

This problem can be modeled by a system of equations.

I am going to call x the number of tie-dyed T-shirts that the man sold and y the number of silk-screened shirts that he sold.

We have that he sold 5 times as many tie-dyed T-shirts as silk-screened shirts. So this gives us our equation 1)

1) x = 5y.

We also know that altogether, he sold 228 shirts. So this gives us our equation 2)

2) x + y = 228.

Now, we solve the system formed by equations 1) and 2)

x = 5y

x + 5y = 228

6y = 228

y = 38

x = 5*38

x = 190

So, in all, the man sold 190 tie-dyed T-shirts and 38 silk-screened T-shirts.

6 0
4 years ago
What is the line that goes through (2,3) and is perpendicular to the line y = -2x + 9? <br> ASAP :)
Marat540 [252]

M1=-2

M2=1/2

y-3/x-2=1/2

2y=x+8

9 0
3 years ago
What is 4.75 as an improper fraction in simplest form
jek_recluse [69]
4.75 = 4 75/100 =
 = 475/100 = ( we can divide numerator and denominator by 25 ) = 19/4
Answer:
4.75 as an improper fraction in simplest form is 19/4.
8 0
3 years ago
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If an instrument measures in units of 10, then any value between which two values would be measured as 80?
enyata [817]

Answer:

The answer is 75 and 85.

Step-by-step explanation:

If the instrument measures in units of 10, then the measurement could be 5 units on either side of 80 (80 − 5 = 75, 80 + 5 = 85). Any value between 75 and 85 would be measured as 80.

4 0
3 years ago
The area of a rectangular painting is 8811 cm^(2). If the length of the painting is 99 cm , what is its width?
snow_tiger [21]

Answer:

The answer is 784,179.

Step-by-step explanation:

8811 x 8811, or 8811*2 is 77633721.

77633721 / 99 = 784,179

3 0
3 years ago
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