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algol13
3 years ago
5

Solving systems of equations using substitution y=7 3x-3y=-18

Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
5 0

Answer:

x = 1

Step-by-step explanation:

If you have any questions feel free to ask in the comments

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4x-3x2<br> pls helppppppppppppppp
PolarNik [594]

Answer:

the answer is 4x-3x^2

Step-by-step explanation:

since you cant combine like terms, the binomial is already simplified

if you want to factor it, the binomial would be rewritten as x(4-3x)

6 0
3 years ago
The length of a rectangle is 4 meters less than three times its width. Its area is 319 square meters. What are the dimensions of
Bumek [7]

Answer:

length =29m width =11m

Step-by-step explanation:

length---L

width -----W

L=3W-4

area=319sqm

area of rectangle=L × W

area of rectangle =W ×(3W - 4)=319

expanding...

3W^2 - 4W=319

3W^2 - 4W -319=0

factorize

(W-11)(3W+29)=0

W=11 or -29/3

using the positive because the negative width with a minus sign does not make sense in real life, we use 11m

width =11m

length 3W -4=3(11) -4 =29m

7 0
3 years ago
If 3 13/44x = 2 7/11, then what is x?
Goryan [66]

Answer:

X equals 4

11 times 4 equals 44

4 0
3 years ago
Read 2 more answers
Sophia works in a clothing store and earns $40 per day. She earns an extra five dollars for each outfit she sells. If Sophia wan
Marysya12 [62]

Answer:

70-40 equals 30/5 equals 6

the answer is 6 outfits

Step-by-step explanation:

70-40 equals 30 (the value of the money she made from each outfit that she sold) and you divide that by 5 to find how many outfits that she sold. This leads you to 6 outfits

pls vote brainliest i would really appreciate it thank u <333

6 0
3 years ago
Please help me with this problem ):
Eva8 [605]
You've got halfway through it! All you have to now is set the two equations equal to each other and solve for x.

2500+0.03x=1500+0.035x
1000+0.03x=0.035x
1000=0.005x
200000=x


$200,000

Good luck!
8 0
4 years ago
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