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NikAS [45]
3 years ago
7

Solve the simultaneous equations

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
7 0

Answer:

X=6. Y= - 6

Step-by-step explanation:

Put y=6-2x in b)

4x+3(6-2x)=6

4x+18-6x=6

-2x=6-18

- 2x=-12

Divide both sides by - 2

X=6

Put x=6 in y = 6-2x

Y=6-2(6)

Y=-6

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Can someone please help me thanks :)
Dmitrij [34]
29 degrees. You can just add 12 and 17 to find this, since the 12 is negative
7 0
3 years ago
Find the value of x.
arsen [322]

Answer:

x = 4

Step-by-step explanation:

used a calculator i hope this helps <3

7 0
3 years ago
Solve the following using the elimination or substitution method. Show all work.
ki77a [65]

Jim has 28 nickels and 37 dimes in his pocket. which is determined by the substitution method.

<h3>What is the equation?</h3>

The term "equation" refers to mathematical statements that have at least two terms with variables or integers that are equal.

Let the number of nickels would be n

Let the number of dimes would be d

As per the given question,

d + n = 65  ....(i)

0.10d + 0.05n = 5.10  ....(ii)

From equation (i),

d + n = 65

d + n - n = 65 - n

d = 65 - n

Substitute in for the equation(ii): d = 65 - n

0.10(65 - n) + 0.05n = 5.10

6.5 - 0.10n + 0.05n = 5.10

6.5 - 0.05n = 5.10

6.5 - 0.05n - 6.5 = 5.10 - 6.5

- 0.05n = -1.4

n = 28

This means there are 28 nickels

Substitute the value of n = 28 in the equation (i),

d + n = 65

d + 28 = 65

d = 37

So there are 37 dimes

Thus, Jim has 28 nickels and 37 dimes in his pocket.

Learn more about the equation here:

brainly.com/question/10413253

#SPJ2

3 0
1 year ago
Read 2 more answers
Sofia received a 3,000 car loan. She plans on paying off the loan in 2 years. At the end of 2 years, Sofia will have paid $450 i
poizon [28]
(So “/” will basically mean divide)
450/3000=0.15
0.15*100=15% rate
3 0
3 years ago
Please answer the following attachment down below.<br><br> I would greatly appreciate it if you did.
zepelin [54]

Answer:

34.63

Step-by-step explanation:

A=a2+2aa2

4+h2=32+2·3·32

4+42≈34.63201

4 0
3 years ago
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