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3 years ago

The sum (c−4)+(3c+9) is

Mathematics

2 answers:

ioda3 years ago

8 0

When you do this you will get 4c+5.

just olya [345]3 years ago

6 0

4c+5

hope that helps you out

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Family paid $24,000 as a down payment for a home if this represents 12% of the price of the home, find the price of the home.

gizmo_the_mogwai [7]

Answer:

$200,000

Step-by-step explanation:

Down payment = $24,000

Given that $24,000 is 12% of the price.

12% = $24000

1% = 24000 ÷ 12 = $2000

Price of the house

= 2000 x 100%

= $200,000

8 0

3 years ago

Read 2 more answers

Sound travels through substances as energy is transferred from one particle to the next. The diagrams represent the particles of

tatyana61 [14]

Answer:

Sound requires a material medium to travel , the sound through each medium through its molecules and particles present in it .Sound travels with some speed and it's speed depends upon the nature of the medium through which it travels i.e. upon density and transparently. Speed of increases with the increase in density and decreases with the increases in temperature . Speed if sound us maximum for solid then for liquid and minimum in gases because of it's large intermolecular spaces and low density.

3 0

2 years ago

Hey all, can I get the answer + explanation for this? Would be much appreciated.

marysya [2.9K]

Answer:

x = 120

Step-by-step explanation:

Let's draw an imaginary dot in the middle of that line which runs between those two parallel lines, and now lets look at it as an angle.

This lines' angle is 180 degrees. Now lets move those two parallel lines together on the imaginary dot in the middle.

We can see that on the left side is one degree and the other side is another, however when we put them together we get the angle measurement of the our line which we identified was 180.

Now that we can see that our two angles must equal 180 when put together we know and can say that:

40 + (x + 20) = 180

So, lets work this out like basic algebra now.

40 + x + 20 = 180

x + 60 = 180

- 60 - 60

x = 120

And voila we have our x value.

Hope this helps :)

4 0

3 years ago

Find the length of AC Give your answer to 1 decimal place

Fantom [35]

We will use tangent here as we are finding the opposite with the adjacent given.

So we can simply just put this into a calculator:

tan(68°) × 7 cm = AC

tan(68°) × 7 cm = 17.3 cm

3 0

3 years ago

Read 2 more answers

Which gives the correct values for points A, B, C, and D?

saveliy_v [14]

Answer:

The correct answer is: A

Step-by-step explanation:

Points on a Numeric Line

The numeric line shown in the figure has four points A, B, C, and D. It's clear that each marked division of the line has a value of 1/4 units and all four points are below the reference zero, thus all are negative.

Point A is clearly on the -2 mark, thus

A=-2

Point B is one mark above A, thus it's located at:

$B=-2+\frac{1}{4}=-\frac{7}{4}=-1\frac{3}{4}$