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earnstyle [38]
3 years ago
5

Use substitution to solve y= 4x - 6 and 5x +3y = -1HELP ASAP PLEASE!!!

Mathematics
1 answer:
ella [17]3 years ago
7 0
So the answer would be x=1 and y=-2. Hope this helps
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There is 4.8% sales tax on all clothing items purchased. Danielle wants to buy a shirt, which costs $18.95. Danielle figures tha
inysia [295]

Answer:

Yes ,is a reasonable amount. If she has $20 she will have enough to buy the shirt

Step-by-step explanation:

we know that

The total amount is equal to the price of the shirt plus the sales tax

we have that

100\%+4.8\%=104.8\%=104.8/100=1.048

Multiply 1.048 by the cost of the shirt

\$18.95(1.048)=\$19.86

Compare

\$19.86 < \$20

therefore

Yes ,is a reasonable amount. If she has $20 she will have enough to buy the shirt

5 0
4 years ago
Read 2 more answers
Find the slope of the line 8x – 4y = 8\ (hint: find 2 points; then use the slope formula)
vodka [1.7K]
Or you can do the easy way

convert to slope intercept
y=mx+b
m=slope

get 1y all by itself

8x-4y=8
minus 8x both sides
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divide both sides by -4
y=2x-2
y=mx+b
slope is 2

the hack way is
for an equatoin in standard form
ax+by=c
slope=-a/b



slope=2



if  you want to graph 2 points and do it the long way, here it is
if x=0, y=-2
if y=0, x=1
(0,-2) and (1,0)
slope=(y2-y1)/(x2-x1)
slope=(0-(-2))/(1-0)=2/1=2



slope is 2
8 0
3 years ago
X² + 3x – 7=0<br> Solve<br> X= or x=
svetoff [14.1K]

Answer:

x = 2

Step-by-step explanation:

X² = 3x - 7 = 0

X² = 3x = 7

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(x + 1) + x = 7 - 2

x + x = 7 - 3

2x = 4

x = 4/2

x = 2

8 0
3 years ago
Yolanda spends 82/3 hours per month playing soccer. Approximately how many hours does she play soccer in a year?
Vesnalui [34]
328 because 82/3 multiplied by 12 is 328 and you do that because there's 12 months in a year and if you spend 82/3 hours per month playing soccer than you would multiply that by 12 which gives you 328 hours.
7 0
3 years ago
What is the equation of the parabola with focus (4,1) and directrix y= 2?
mariarad [96]
It’s A I think I had it on a recent test :) I’m not sure tho
8 0
2 years ago
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