I need help I will give brainiest

Mathematics

2 answers:

BigorU [14]3 years ago

7 0

Answer:

the top one has no solution

Step-by-step explanation:

quester [9]3 years ago

6 0

Answer:

The one on top is no solution and the one on bottom is one solution

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Solve #2 with an explanation please

KatRina [158]

The fence is 210 ft long.
There is a post every 3.5 ft.
If you divide 210 ft by 3.5 ft, you get the number of spaces between posts.
(210 ft)/(3.5 ft) = 60
The fence starts with a post. Then there is 3.5 ft of fencing. Then there is another post. Then there is another 3.5 ft of fencing followed by a post. In total there are 61 posts.

Here's another way of thinking of why you end up with 60 posts.
For each 3.5 ft of fencing, you place a post at the end of the fencing.
Since there are 60 3.5-ft-long pieces of fencing, there will be 60 posts, one at the end of each piece of fencing. The first thing that is done is to put the initial post before any fencing is put up. The first post plus 60 more posts add up to 61 posts.

Now that you see why there are 61 posts, we can calculate their cost.
61 * $8.50 = $518.50

5 0

3 years ago

Write an expression that is equivalent to 4(b+2)-3b

vekshin1

Ok so first we need to distribute so:
=(4)(b)+(4)(2)+−3b
=4b+8+−3b
So now that we've distrubuted that we are now going to Combine Like Terms:
=4b+8+−3b
=(4b+−3b)+(8)
Finally your answer is:
=b+8
I hope this helps you!

6 0

3 years ago

Read 2 more answers

Hannah earned $1536 in 8 years on an investment at a 4% annual simple interest rate. How much was Hannah’s investment? $4800 $30

Nonamiya [84]

Simple interest calculates interest on initial amount only. The investment by Hannah was : Option A: $4800

<h3>How to calculate simple interest amount if rate of interest is R% annually?</h3>

Suppose that the initial amount of investment is P

And the rate of simple interest is R% annually,

And the time of investment is T years.

Then, the amount of simple interest is calculated as:

$I = \dfrac{P \times R \times T}{100}$