- 8x-10y=20
-8x - 6y=-4
Answers
Answer:
x=5 y =-6
Step-by-step explanation:
- 8x-10y=20
-8x - 6y=-4
Multiply the first equation by -1
8x +10y=-20
Add this to the second equation
8x +10y=-20
-8x - 6y=-4
------------------
4y = -24
Divide each side by 4
4y/4 = -24/4
y = -6
Now we need to solve for x
8x +10(-6) = -20
8x -60 = -20
Add 60 to each side
8x -60+60 = -20+60
8x = 40
Divide each side by 8
8x/8 = 40/8
x =5
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In the diagram, x/15=y/6. What ratio completes the equivalent proportion x/y=?
PLZ HELP ASAP!!!! A line has a slope of -1/2 and a y-intercept of 3. Which equations represent the line? Choose all answers that are correct. A. 2y=6 x B. x 2y=6 C. y=-1/2x 3 D. (y-2)=-1/2(x-2)
Answers
2x + y = -2
take 2x and subtract to the side with -2
it'll look like this: y = -2x - 2
plug that equation in where the y is in the other equation.
it'll look like this: 4x + 3(-2x - 2)=0
which you multiply 3 and the -2x and the -2
which the equation would be: 4x - 6x - 6=0
put together like terms: -2x - 6=0
add the 6 to the side with the zero: -2x = 6
divide both sides by -2 which x= -3
to get y you plug in the answer for x (-3)
2(-3)+y= -2
so it'd then be -6 + y = -2
add the -6 to the side with -2
y= -2 +6
y= 4
so your complete answer is ( -3, 4)
Answers
Answer:
Talk time
Step-by-step explanation:
Talk time deal is better because for 14 hours the cost would be 35$ but for On call it would cost 40$ for 14 hours because every 3 hours and 30 minutes On Call cost 10$ and for Talk Time every 30 minutes cost 1:25
Hope This Helped :)
Answers
Answer:
Multiples and Submultiples of Volts.
Multiples and submultiples are prefixes and sufixes which are used to express a higher or lower number of a magnitude.
From least to greatest.
Multiples are: deka, hecto, kilo, mega, giga, tera, peta, exa, zetta, yotta.
Submultiples are: deci, centi, mili, micro, nano, pico, femto, atto, zepto, yokto.
Multiples of volts are:
dekavolts:
hectovolts:
kilovolts:
megavolts:
gigavolts:
teravolts:
petavolts:
exavolts:
zettavolts:
yottavolts:
Submultiples of volts are:
decivolts:
centivolts:
milivolts:
microvolts:
nanovolts:
picovolts:
femtovolts:
attovolts:
zeptovolts:
yoktovolts: .
MV =MegaVolt (1 MV = 1000000 V)
KV = KiloVolt (1 KV = 1000 V)
V = Volt (1V = 1 V) :))
mV = miliVolt (1V = 1000 mV)
μV = microVolt (1V) = 1000000 μV
Answers
Divide difference by exact value to get a ratio: 50/225 = 0.22 (repeating)
Multiply ratio by 100 to get a percent: 0.22 (repeating) * 100 = 22.22 (repeating) %
Replace repeating with the sign if you can.
Answers
Answers
A square has four sides.
26 ÷ 4 = 6.5 yards.
6.5 × 4 = 26 yards.