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3 years ago

Use the diagram to answer the question. (4x - 120) m n +

Mathematics

1 answer:

Nuetrik [128]3 years ago

7 0

Answer:

B. 40

Step-by-step explanation:

(4x-120)

plug in your x value

(4x40-120)

multiply

(160-120)

subtract

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Please help with my question it is the millers shower uses 25 gallons of water for a 10 min shower. Now how many gallons of wate

klasskru [66]

Answer: The Millers need 15 gallons of water for 6 minutes.

Lets start by finding how much water is needed for 1 min shower.

25 gallons of water is used for 10 min shower:

10 mins = 25 gallons 

To find 1 min shower, we will divide the 25 gallons of water by 10.

10 mins = 25 gallons ← Divide by 10 on both sides
÷ 10 ÷ 10
1 min = 2.5 gallons

Now that we know the Millers need 2.5 gallons for every 1 minute of shower, we can find 6 minutes of shower by multiplying by 6.

1 min = 2.5 gallons ← Multiply 6 on both sides
x6 x6
6 min = 15 gallons

--------------------------------------------------------------------------------------
Answer: The Millers need 15 gallons of water for 6 minutes.
--------------------------------------------------------------------------------------

8 0

3 years ago

21. For the following exercises, use the descriptions of each pair of lines given below to find the slopes of Line 1 and Line 2.

dybincka [34]

Answer:

The given lines are perpendicular.

Step-by-step explanation:

In the question, two lines are given as line 1 passes through (1,7) and (5,5). Whereas, line 2 passes through (-1,-3) and (1,1).

It is required to find the slope of given lines and figure out whether they are perpendicular, parallel or neither.

To solve this question, first find the slope of both lines. Check if their product is equal to -1, then they are perpendicular. If the slopes are equal the lines are parallel.

Step 1 of 2

Find the slope of first line.

$\begin{aligned}m_{1} &=\frac{5-7}{5-1} \\m_{1} &=\frac{-2}{4} \\m_{1} &=-\frac{1}{2}\end{aligned}$

Step 2 of 2

Find the slope of first line.

$\begin{aligned}&m_{2}=\frac{1-(-3)}{1-(-1)} \\&m_{2}=\frac{4}{2} \\&m_{2}=2\end{aligned}$

And

$\begin{aligned}&m_{1} m_{2}=-\frac{1}{2}(2) \\&m_{1} m_{2}=-1\end{aligned}$

Since, both slopes are reciprocal of each other.

Therefore, the lines are perpendicular.

6 0

2 years ago

I HAVE 10 MIN PLS HELP FIND THE VOLUME

egoroff_w [7]

Answer:

900

Step-by-step explanation:

The figure is a triangular prism

The equation would be V = A * H / 3

V being the volume

A being the area of the pyramids base

H being the height front he base to the top (20)

Base area is 135 (A)

135 * 20 = 2700

2700 divided by 3 = 900

900 is your answer

8 0

3 years ago

6x^3+3n^2+8n+4 factor the following polynomial

Archy [21]

Answer:

x1=((2√3)/3)i

x2=-0.5

x3=-((2√3)/3)i

Step-by-step explanation:

6 0

3 years ago

I'm not understanding which statement is correct, to me they all look wrong

neonofarm [45]

Answer:

it is the third option because -3.2 is greater than -5.4

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers