All categories

3 years ago

Name the property of real numbers illustrated by the equation -3(x + 4) = -3x -12

Mathematics

1 answer:

vivado [14]3 years ago

5 0

Answer:

Distributive Property

Step-by-step explanation:

They distributed the -3 to x and 4. In this case, to distribute the -3, you multiply it to each term.

-3 × x = -3x.

-3 × 4 = -12.

-3x - 12

You might be interested in

A farmer has both pigs and chickens on his farm there are 78 fee and 27 heads how many pigs and how many chickens are there

Andre45 [30]

Assuming health non-mutated animals:
$Feet = 4*Pigs + 2*Chickens$
$Heads = Pigs + Chickens$

By back substitution:
$78 = 4*(27-Chickens) + 2*Chickens$
$78 = 108 -2*Chickens$
$-30 = -2*Chickens$
$Chickens= 15$

Then:
$27 = Pigs + 15$
$Pigs = 12$

To check:
$Feet = 4*Pigs + 2*Chickens$
$78 = 4*12 + 2*15$
$78 = 48 + 30$
$78 = 78$ CHECKS

6 0

3 years ago

For each set of three lengths determine if they can be the side lengths of a triangle

Luden [163]

Answer:

1) Yes

2) No

3) Yes

4) Yes

Step-by-step explanation:

Remember the rule: the sum of the two shortest sides must be bigger than the longest side. From there, the answers should be obvious. Just add up the smallest sides for each triplet of lengths and see if that is bigger than the largest side.

7 + 14 > 18, therefore this can be a triangle

3 + 8 < 17, therefore this can't be a triangle

3.2 + 9.0 > 11.5, therefore this can be a triangle

6 + 7 > 8, therefore this can be a triangle

5 0

2 years ago

Solve x/5 - 1=7? help please !!

xxTIMURxx [149]

First, add 1 on both sides of the equation to begin to isolate x

x/5 = 8

Now, to isolate x, multiply both sides of the equation by 5/1

$\frac{x}{5}$ · $\frac{5}{1}$ = $\frac{5x}{5}$ = x

x= 7 · 5/1 = 7 · 5 = 35

x = 35

6 0

3 years ago

Find the slope of the line passing through the points (-6, 3) and (-6, -2).

Vadim26 [7]

Use the y2-y1 and x2-x1 method

3 0

3 years ago

Sara makes and sells bracelets. She bought material for $28.50 and used it all to make 15 bracelets. Sara used the equation 15x-

g100num [7]

Each bracelet should cost $8.50. Replace x with 8.50, 15(8.50)-28.50=99

5 0

3 years ago

Read 2 more answers