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Reptile [31]
2 years ago
11

3x+2y=1 5x-2y=-9 solve by substitution

Mathematics
1 answer:
zavuch27 [327]2 years ago
4 0

3x + 2y = 1

2y - 5x = 9

27x + 18y = 2y - 5x

32x = -16y

2x = -y

y = 2x

7x = 1

x = 1/7

y = 2/7

please give brainliest

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I want the answer of question 27 with explanation
m_a_m_a [10]

Answer:

6√2

Step-by-step explanation:

√32+√18-1√4

√16×2+√9×2-1√2

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6√2

7 0
3 years ago
What is 4 - ( -h ) = 68?
Kryger [21]
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hope this helps
5 0
3 years ago
Read 2 more answers
A bag contains red, green, and yellow marbles. The probability of selecting a red marble is 35%. What is the probability of not
KonstantinChe [14]

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Hope it helps you. Please mark brainliest.

6 0
2 years ago
I need to increase my sales by 35% this month I’m currently at 45 sales how many sales do I need to meet my goal ?
telo118 [61]
Assume that 100% = 45 sales and 35% = X sales amount

You can create a ratio to help you solve for x

45 = 100%
x   =  35 %

Which is equal to this fraction:  (45/x) = (100/35)

Solving for X by cross multiplying and dividing by 100:
  [(45)(35)] / 100  =  X = 15.75 = 16 sales (rounded up)

You would need at least 16 sales to increase sales total by 35%
8 0
3 years ago
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I DON'T WANT TO GO TO SUMMER SHCOOL, IF I FAIL I GET SUMMER SHCOOL, PLEASE HELP, IF YOU HAVE ANY KNOWLEDGE ON THIS TEACH ME OR S
jenyasd209 [6]

Answer:

B. 225 π sq. units

Step-by-step explanation:

the diameter of circle = √18²+24²

=√324+576=√900 = 30

the radius = ½×30=15

the area of circle =

π × 15² = π × 225 = 225 π sq. units

8 0
3 years ago
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