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Sunny_sXe [5.5K]
3 years ago
13

-3x+10y=-60 3x+5y=15

Mathematics
1 answer:
Verdich [7]3 years ago
6 0

Answer:

x=10, y=-3

Step-by-step explanation:

solve by addition/elimination

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Who do I find the percent of a number
expeople1 [14]
Always divide by 10 first, for example; if it was 10% of 20 you would divide 20 by 10 to get 2. If it was 20% of 40 you would divide by 10 to get 4 then times by 2 to get 8.
3 0
3 years ago
Read 2 more answers
The surface area of a cylinder is 602.88. If the dimensions of the cylinder are
lana66690 [7]

Answer:

you all have to divide by 2

Step-by-step explanation:

602.88÷2= 301.44

3 0
2 years ago
I need a better explanation how to find length and area of a triangle
fomenos

Answer:

Height(h) = 24in

Area = 204in²

Step-by-step explanation:

we would use the heron formula because we have all the sides to calulate the area

S  = (A+B+C)/2 = (25 + 17 + 26)/2 = 68/2 = 34

area = √s(s-a)(s-b)(s-c)  = √34(34-25)(34-17)(34-26) = √34(9)(17)(8) = √34x9x17x8 = √41616 = 204

area= (1/2)bh

    204 = (1/2)bh b= 17, h =?

204 = (1/2)17h

204 x 2 = 17h

408 = 17h

h = 408/17 = 24in

Height(h) = 24in

Area = 204in²

4 0
3 years ago
There's six questions. WILL AWARD BRAINLIEST!!!!
lina2011 [118]

Answer:

Question 1: 4

Question 2: 16

Question 3: 34

Question 4: 46

Question 5: Subtraction

Question 6: Multiplication

Step-by-step explanation:

8 0
3 years ago
6x^2 + 23x + 7 NEED HELP SOLVING QUADRATIC EQUATION
luda_lava [24]

Answer:

6x2 + 23x + 7 = 0

Factorization:

(2x + 7)(3x + 1) = 0

Solutions based on factorization:

2x + 7 = 0   ⇒   x1 = −7

2

= −3.5

3x + 1 = 0   ⇒   x2 = −1

3

≈ −0.333333

Extrema:

Min = (−1.916667, −15.041667)

Step-by-step explanation: hope this helps

6 0
3 years ago
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