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Mademuasel [1]
2 years ago
12

Which is the solution to the system of equations?2x+y=7 and 3x−4y=5

Mathematics
2 answers:
Veronika [31]2 years ago
7 0

Answer:

X = 3, Y = 1.

Step-by-step explanation:

X = 3 and Y = 1, because 2 times 3 equals 6, and 6 plus 1 equals 7. So that's for the first one, but now we need to make sure that it's the same value for the other equation. 3 times 3 equals 9, 4 times 1 equals 4, and 9 minus 4 equals 5. So X = 3, and Y =  1. Hope this helped :D

uysha [10]2 years ago
3 0

Answer: these are cordnets

Step-by-step explanation:

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1) What is 20% of 20?<br> 2) what is 15 is what percent of 30?<br> 3) 50 is 50% of what?
N76 [4]

Hi there!

The word "of" is the same thing as a multiplication sign.

1)

20% = 0.2

0.2 × 20 = 4


2)

? × 30 = 15

divide each side of the equation by 30

? = 0.5

0.5 = 50%


3)

50% = 0.5

0.5 × ? = 50

divide each side of the equation by 0.5

? = 100


There you go! I really hope this helped, if there's anything just let me know! :)

7 0
3 years ago
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Your co-worker, Amanda, and you are reliving your high school athletic "glory days" during a coffee break. She played basketball
topjm [15]

Answer:

Our score = 0.60, Amanda's score = 0.25

Step-by-step explanation:

For Amanda

μ = 15 , σ = 4

z- score for X = 16 is (From z table)

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For us

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z = (325-310)/25 = 0.60

Since our z score is better than Amanda's z score, we can say we did better

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3 years ago
Will give brainliest! :)) need asap
Romashka-Z-Leto [24]

Answer:

D. -3 for every 1 to the right, in goes down 3.

E. 0, the graph could represent no change over time.

F.

assume the point on the graph is the origin, you can graph these

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(1,-2)

(0,0)

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Step-by-step explanation:

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The radius of the earth is 6.371 X 10^3 km. Write the value of this scientific notation and express the radius in words.​
snow_tiger [21]

Answer:

6371. six thousand three hundred and seventy-one

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2 years ago
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Alinara [238K]

Answer:

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