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Elodia [21]
3 years ago
13

Please help I’ll give brainliest

Mathematics
2 answers:
AlekseyPX3 years ago
8 0
It’s the 2nd on I’m pretty sure because it says decimal
valentina_108 [34]3 years ago
6 0

Answer:

last option

Step-by-step explanation:

7 is the most significant value

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3x - 5y = 14 and – 2x + 2y = 0
zubka84 [21]

Answer:

x=5.6

y=-5.6

Step-by-step explanation:

3x - 5y = 14 Equation 1

– 2x + 2y = 0 Equation 2

Simultaneous equation can be solved either through elimination method or substitution method. But we use elimination method for this question

Multiply equation 1 by -2 (the coefficient of x in equation 2) and multiply equation 2 with 3 (the coefficient of x in equation 1), so that x will have the same coefficient in the new equations, and easy to eliminate

-2(3x - 5y = 14)

-6x+10y=-28 Equation 3

3(– 2x + 2y = 0)

-6x+6y=0 Equation 4

Subtract equation 4 from 3 to eliminate x

-6x+10y=-28

-6x+6y=0

-6x-(-6x)=-6x+6x=0

10y-6y=5y

-28-0=-28

5y=-28

y=-28/5

y=-5.6

Substitute for y in equation 2

– 2x + 2y = 0

– 2x + 2(-5.6) = 0

-2x-11.2=0

-2x=11.2

x=-11.2/2

x=5.6

7 0
3 years ago
Plss tell me guy's plssssssssssssssssssssssssssssssssssssssssssssss
Ksenya-84 [330]

Answer:

According to my equation it's 20°

8 0
3 years ago
Read 2 more answers
Barry buys a package of pasta for $2.39 and a jar of tomato sauce for $3.09. He uses a $0.75 coupon and a $0.50 coupon.
seraphim [82]

Answer:$4.23

Step-by-step explanation:

6 0
3 years ago
Help me out asap!!!!
attashe74 [19]

Answer:

anglePUM = 3° , PM = 5, UM = √75

Step-by-step explanation:

anglePUM = 180 - 60 - 90 = 30° (∠sum of Δ)

cos60 = PM/10

PM = 10cos60 = 5

sin60 = UM/10

UM = 10sin60 = √75

6 0
2 years ago
This is due tomorrow and PLEASE HELP ME ON THESE QUESTIONS! THIS IS DUE TOMORROW!
Usimov [2.4K]
3: multiply the change per minute by how many minutes: 3.1x15=46.5. 5: Is your opinion, I can't tell you how to feel. But a negative times a negative is a positive, so if there is an even number of negatives no matter how many positives there are it will be positive, if there is an odd number of negatives it will be negative. :) Hope this helps!
4 0
3 years ago
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