All categories

3 years ago

If x = 30, what does 55 + x - 27 equal?

Mathematics

1 answer:

Morgarella [4.7K]3 years ago

4 0

Answer:

Step-by-step explanation:

Put 30 where x is in the expression and do the arithmetic.

55 + 30 - 27 = 85 - 27 = 58

It can be advantageous to use the associative property of addition to evaluate the expression as ...

55 + (30 -27) = 55 +3 = 58

You might be interested in

The area of a triangle is<br> A = bh/2<br> What would be the formula for h?

babymother [125]

Answer:

h = 2A/b

Step-by-step explanation:

multiply both sides by 2

2A = bh

divide both sides by b

2A/b = h

8 0

4 years ago

Say you have 29 dogs 4 are puppies you want to get rid of two puppies how many dogs will you have left?

padilas [110]

Answer:

Step-by-step explanation:

cuz 29 - 4 - 2 = 27

6 0

3 years ago

Read 2 more answers

PICK ME!!! Abel uses a probability simulator to roll a six-sided number cube 100 times and to flip a coin 100 times. The results

tatuchka [14]

I think it is 1/3 but I am not sure. Sorry if wrong.

4 0

3 years ago

Solve the rational equation (3x^2+1)/(x-1) + x =4 + 4/(x-1)

natita [175]

Answer:

The answer to your question is letter D

Step-by-step explanation:

Rational equation

$\frac{3x^{2} + 1}{x - 1} + x = 4 + \frac{4}{x - 1}$

Simplify

$\frac{3x^{2} + 1 + x(x - 1)}{x - 1} = \frac{4(x - 1) + 4}{x - 1}$

Cancel the denominators and expand

3x² + 1 + x² - x = 4x - 4 + 4

Simplify

4x² - x + 1 - 4x = 0

4x² - 5x + 1 = 0

Factor

4x² - 4x - 1x + 1 = 0

4x(x - 1) - 1(x - 1) = 0

(4x - 1)(x - 1) = 0

x₁ = 1/4 x₂ = 1

4 0

3 years ago

A complete graph is defined as what ???

galina1969 [7]

Answer:

A complete graph is a graph in which each pair of graph vertices is connected by an edge. The complete graph with graph vertices is denoted and has (the triangular numbers) undirected edges, where is a binomial coefficient. In older literature, complete graphs are sometimes called universal graphs.

Step-by-step explanation:

3 0

3 years ago