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Dmitrij [34]
3 years ago
14

X=y+2 X=2y+1 Solving Systems of Equations by subtraction Please solve this

Mathematics
1 answer:
vivado [14]3 years ago
8 0

Answer:

x=3

y=1

Step-by-step explanation:

We can subtract the first equation from the second to find the value of y, although we can also do this vice versa.

x-x=2y+1-y-2

y-1=0

y=1

Now, we can use substitution to solve for x:

x = y+2 (pick any equation for substitution)

x=1+2

x=3

Hope this helps :)

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Naya [18.7K]
Hello!

1 foot = 0.305 meter

89 feet = 27.127 meters.

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What is the value of f(−1) when f(x)=2x+2 ?
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4 years ago
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sarah, natasha and richard share some sweets in the ratio 5:2:4. sarah gets 60 sweets. how many did richard get?​
Sindrei [870]

Answer:

48 sweets

Step-by-step explanation:

5:2:4

Sarah: 5

Natasha:2

Richard:4

To find out how many sweets Richard got, we need to use 60 as the lcm. Since, we have a definite constant of 60 we need to divide it by the presiding ratio.

60/5 = 12

That means for a ratio of 1, everyone in the group recieves 12.

Now, we plug it in for each of the members.

5x = Sarah

2x = Natasha

4x = Richard

Sarah = 60 sweets

Natasha = 24 sweets

Richard = 48 sweets

6 0
3 years ago
Use the formula below to find the value of $1300 invested at 4.2% interest compounded continuously for 5 years 9 months. Round y
iren2701 [21]
Hi there

The formula of compounded continuously is
A=pe^rt
A future value?
P present value 1300
E constant
R interest rate 0.042
T time 5years+9/12=5+9/12=5.75years
So
A=1,300×e^(0.042×5.75)
A=1,655.10 round your answer to get
A=1655

Good luck!
3 0
3 years ago
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