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DIA [1.3K]
3 years ago
15

Z=-4x-2y, solve for x

Mathematics
1 answer:
Tresset [83]3 years ago
7 0

Answer:

Step-by-step explanation:

Z=-4x-2y

Making x as subject

4x = -2y - z

Dividing by 4

4x/4 = (-2y - z)/4

x = (-2y - z)/4

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How many different types of Ice Cream Sundays are possible if each contain one type of 5 different types of ice cream, one type
kykrilka [37]
The answer is B, or 30. 1/5 x 1/2 x 1/3 = 1/30, which means one out of 30 total options will be chosen
5 0
2 years ago
How do you solve x^2 plus 16x plus 63=0?
Alex
x^2+ 16x + 63=0 \\ \\a=1, \ b=16 , \ c=63 \\ \\ \Delta =b^2-4ac =16^2 -4\cdot1\cdot 63 = 256 -252 = 4 \\ \\x_{1}=\frac{-b-\Delta }{2a}=\frac{-16-\sqrt{4}}{2 }=\frac{-16-2}{2}=-\frac{-18}{2}=-9 \\ \\x_{2}=\frac{-b+\Delta }{2a}=\frac{-16+\sqrt{4}}{2 }=\frac{-16+2}{2}=-\frac{-14}{2}=-7 \\ \\ \\Answer : \ x= -7 \ \ or \ \ x= -9
8 0
3 years ago
Anthony jogs 11 1/2 miles in 23 mins. If Anthony continues to jog at a steady pace, how many miles will he jog each minute?
frozen [14]

For this case we can raise a rule of three based on Anthony trotting 11 \frac {1} {2} miles in 23 minutes.

11 \frac {1} {2} = \frac {2 * 11 + 1} {2} = \frac {23} {2}

\frac {23} {2} miles -----------> 23 minutes

x ----------------------------------------> 1minute

x = \frac {\frac {23} {2} * 1} {23}\\x = \frac {\frac {23} {2}} {23}\\x = \frac {23} {2 * 23}\\x = \frac {1} {2}

ANswer:

0.5 miles per minute

5 0
3 years ago
Which expression is equivalent to the expression 3^7x3^-4
kykrilka [37]

Answer:

3^7 * 3^(-4) = 3^(7 - 4) = 3^3 = 27

5 0
3 years ago
Simplify: (2x²y²) (-3xy³)<br>please no links and explain please. I need it fast​
Shtirlitz [24]

Step-by-step explanation:

Solution:

(6xy) × (-3x²y³)

= {6 × (-3)} × {xy × x²y³}

= -18x1+2 y1+3

= -18x³y⁴.

3 0
3 years ago
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