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matrenka [14]
3 years ago
5

What the simplified form of x- 1 +4+7x-3

Mathematics
1 answer:
Nuetrik [128]3 years ago
7 0
Collect like terms (x + 7x) + (-1 + 4 - 3)

Simplify

Answer: 8x
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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
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The sum of two binomials <br> Is
barxatty [35]

Is there a equation? Or do you just wanna know what the sum of two binomials equal?

8 0
3 years ago
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Evaluate the expression 2m + n for m = 17 and n = 8.
iragen [17]

Answer - 42

Expression Evaluated - 2 Times 17 Plus 8

We take the M and the N and substitute 17 for M and 8 for N, then we solve the problem.

Best Of Luck,

     - Ari -

4 0
3 years ago
PLISSSSSS HELP THIS IS FOR EXAM THERE IS A PICTURE
Marizza181 [45]

Answer:

elimination anyday

Step-by-step explanation:

there are two 3y terms so they cancel out when using elimination, mark me brainliest plz

3 0
2 years ago
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The vertices of triangle ABC are A(5,2), B(-1,-6) and C(1,5). If Triangle DEF is similar to Triangle ABC and AB/DE=5, what could
astraxan [27]

Answer:

D(-5,3) and E(-5,1)

Step-by-step explanation:

|AB|² = (-1-5)² + (-6-2)²

|AB|² = 36 + 64

|AB|² = 100

|AB| = 10

AB/DE = 5

|DE| = 10/5 = 2

D(-5,3) and E(-5,1)

|DE|² = (-5+5)² + (3-1)²

|DE|² = 4

|DE| = 2

Verified

5 0
3 years ago
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