All categories

3 years ago

Simplify to create an equivalent expression 5+7(8r-2)

Mathematics

2 answers:

mr Goodwill [35]3 years ago

5 0

5+56r-14=56r-9. The correct answer will be D.56r-9.

gulaghasi [49]3 years ago

4 0

Answer:

The correct option is D.

Step-by-step explanation:

The given expression is

$5+7(8r-2)$

Using distributive property, the above expression can be written as

$5+7(8r)+7(-2)$ $[\because a(b+c)=ab+ac]$

$5+56r-14$

On combining like terms we get,

$56r+(5-14)$

$56r+(-9)$

$56r-9$

The expression 56r-9 is equivalent to the given expression.

Therefore the correct option is D.

You might be interested in

What is an estimation strategy<br> This is for 6th grade math please help

Lunna [17]

Answer:

Estimation is a mental process of coming up with an answer that is relatively close, to allow decisions to be made. The types of estimation are quantity, computation and measurement.

An estimation strategy is simply coming up with a good estimate based on evidence and already known facts. Coming to a conclusion as close to the real answer as you can. It can also be called an educated guess.

8 0

4 years ago

The ratio of the width to the length of a flower is 10:19. How long is the flower bed if it’s width is 6 feet?

Lubov Fominskaja [6]

Just set up an equation comparing the two ratios and solve for the length, in this case x.

(10/19)=(6/x)
19/10=x/6
114/10=x

Answer= 11.4 feet for the length of the flower

6 0

4 years ago

Eliminate the parameter.<br><br><br>x = 5t, y = t + 8 (2 points)

maxonik [38]

Answer: y = $\frac{1}{5}$ x + 8

Step-by-step explanation:

This is asking us to remove the parameter. In other words, we want an equation with only the relation between x and y, so we need to remove the t. There are a few ways to do this, but I am going to set one equation equal to t and then plug it into the next one.

Given:

x = 5t

Divide both sides of the equation by 5:

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

Given:

y = t + 8

Plug in:

y = ( $\frac{1}{5}$ x) + 8

Answer:

y = $\frac{1}{5}$ x + 8

8 0

2 years ago

Simplest form of 2/10

slega [8]

To simplify fractions, all you have to do is divide both the numerator and the denominator by the greatest common factor of both integers.

In this case, the greatest common factor of 2 and 10 is 2.

2/2=1
10/2=5

So, 2/10 in its simplest form is 1/5.

3 0

3 years ago

Simplify ten to the eighth divided by ten to the negative third.

In-s [12.5K]

Answer:

$10^{11}$