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3 years ago

Solve each equation. Check your solution. 3(n - 7) = -30

Mathematics

2 answers:

weqwewe [10]3 years ago

6 0

I agree with n as -3 & 3(-3-7)=-30

uranmaximum [27]3 years ago

5 0

3(n-7)=-30
3n-21= -30
3n = -9
n= -3

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3x + y = 19 , and x + 3y = 1.<br> Find the value of 2x + 2y<br> Can anyone explain this one for me?

velikii [3]

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4 years ago

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which property is illustrated by the following statement? 2(-3/9)=(-3/9)2^? Associative Property of Addition, Commutative Proper

Ratling [72]

Consider the given statement:

$2(\frac{-3}{9}) = (\frac{-3}{9})2$

We have to identify the property used in this statement.

1. Associative Property of Addition: Let a,b and c be three real numbers. This property states that $a+(b+c) = (a+b)+c$ . This property is not used in the given statement.

2. Commutative property of multiplication: Let 'a' and 'b' be two real numbers. This property states that $a \times b = b \times a$ .

In the given statement, $2(\frac{-3}{9}) = (\frac{-3}{9})2$

This statement holds commutative property of multiplication as whether 2 is multiplied to $\frac{-3}{9}$ or $\frac{-3}{9}$ is multiplied to 2, the result is same.

So, Commutative property of multiplication is illustrated in this statement.

3. Inverse property of multiplication: A number 'a' is said to have an inverse ' $\frac{1}{a}$ ' if $a \times \frac{1}{a}=1$ . This property is not used in the given statement.

4. Commutative property of addition: Let 'a' and 'b' be two real numbers. This property states that $a+b = b+a$ . This property is not used in the given statement.

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4 years ago

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babunello [35]

Answer:

Step-by-step explanation:

y-intercept is the y-value when x = 0

y - 3 = -2(0 + 5)

y - 3 = -2(5)

y = -7

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3 years ago

Find the equation of the line that is parallel to 4y-x=3 and passes through the point (8,-7)

laiz [17]

Answer:

y=x/4 - 9

Step-by-step explanation:

4y-x=3

y=1/4x +3/4

G1=1/4

at parallel G1 =G2

so G2 =1/4

y+7 /x-8 =1/4

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4y =×-36

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2 years ago

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musickatia [10]

The answer is B. The slope in item 2 is steap and steady

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