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svlad2 [7]
3 years ago
9

Evaluate if x=-4 and y=13 3(2x- y)

Mathematics
1 answer:
Katena32 [7]3 years ago
8 0

Answer:

-63

Step-by-step explanation:

6x - 3y

= 6 × -4 - 3 × 13

= -24 - 39

= -63

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N = 4 x 58<br><br><br>589 = 7 X 84 +n<br> show steps please<br><br><br><br>​
gtnhenbr [62]

Answer:

ok if u know what 7x84= you can gte this answer then thne n the answer will be________if u need more help plz go check out  tiger  algebra  solver ty

Step-by-step explanation:

6 0
4 years ago
How do you find the volume of a cylinder with a hight of 8 and a radius of 12
Nonamiya [84]

Answer:

 πr²h

=  π×12²×8

=  1152π

=  3619.1147369354 feet³

Step-by-step explanation:

8 0
3 years ago
Choose the correct description of each system of equations.<br> 3x + y = 3<br> x - 2y = 4
DENIUS [597]

Since we have a unique value of x and y, it shows that the system of the equation is consistent and independent.

Given the system of equation expressed as:

3x + y = 3

x - 2y = 4

Solve simultaneosly;

3x + y = 3 ............. 1 * 1

x - 2y = 4 ...............2 * 3

_________________________

3x + y = 3

3x - 6y = 12

Subtract

y-(6y) = 3 - 12

7y = -9

y = -9/7

Substitute y = -9/7 into the equation to get x

x - 2y = 4

x - 2(-9/7) = 4

x + 18/7 = 4

x = 4 -  18/7

x = 3/7

Since we have a unique value of x and y, it shows that the system of the equation is consistent and independent.

Learn more here: brainly.com/question/20052273

7 0
3 years ago
2r-3.1=1.7 solve each equation check your soultion plz help step by step plz
professor190 [17]

2r-3.1=1.7 add 3.1

2r=1.7+3.1 divide by 2 to isolate r

2r/2=4.8/2

r=2.4

check

2(2.4)-3.1=1.7

4.8-3.1=1.7

1.7=1.7

4t+3.5=12.5 sub 3.5

4t=12.5-3.5 divide by 4

4t/4=9/4

t=9/4

check

4(9/4)+3.5=12.5

9+3.5=12.5

12.5=12.5

8m-5.5=10.1 add 5.5

8m=10.1+5.5 divide by 8

8m/8=15.6/8

m=1.95

check

8(1.95)-5.5=10.1

15.6-5.5=10.1

10.1=10.1

8 0
4 years ago
If a hat costs 15$ and the sales tax is 10% how much money do you need to buy the hat
GREYUIT [131]

Answer:

the answer would be 16.50

6 0
3 years ago
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