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3 years ago

PLEASE HELP EASY 9TH GRADE MATH QUESTION!!

Mathematics

2 answers:

PilotLPTM [1.2K]3 years ago

4 0

Answer:

53.846153846154

Step-by-step explanation:

78 percent (calculated percentage %) of what number equals 42? Answer: 53.846153846154.

s2008m [1.1K]3 years ago

4 0

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:Answer:

Step-by-step explanation:

Answer:

V.) afriv mruno bars caac jimin.

Step-by-step explanation:

I believe that the answer to your request for one is the selection, letter V. I think this because IM AFRTIV CAAC AND PREPATRE FOR TOOBLE MRUNS BSRAS

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Giving brainiest+points need explanation on this one my answer is 25 is it right?

natka813 [3]

Known facts:
A line shaft rotating at 250 rpm, a grinder shaft that turns at 1200 rpm diameter of grinder pulley is 5 inches.

1. Proportion equation
350/1200 = 5/x

2. Cross multiply
1200*5=250*x
x=(1200*5)/250 = (24*50*5)/(5*50) = 24
The big wheel diameter is 24 inches

8 0

3 years ago

Can someone help me with this?

Alecsey [184]

Functions 6 and 7 are linear, 8 is not. This means 6 and 7 have a degree of 1. Since 8 is a quadratic, it has a degree of 2.

The slope is 1 for function 6 and 5 for function 7. Remember, in slope-intercept format, linear equations are written as y=mx+b. X and Y stand for coordinates you can plug in, m represents the slope of the line, and b represents the y-coordinate of the function’s y-intercept. I assume you are familiar with these terms so I won’t explain them.

Number 9 is linear, and you can tell because f(x), which is the output, increases with a constant difference as x increases by 1. In other words, the delta y and delta x is the same between all points.

Number 10 is clearly not linear, because two different x values have the same y value. This is a parabola.

I recommend you graph some of these functions for practice, so you can visualize it better. Imagine the functions as machines. You input a number (x) and you get a number out (y).

For example, in the function f(x)=3x+5, I can input any x, let’s take x as 6, and when I plug it in, I’ll get an output, f(x). 3(6)+5=18+5=23. So my f(x)=23 when x is 6.

7 0

2 years ago

It costs $3.56 to buy a pack of pencils. Which of the following equations shows the amount of money needed, x, to buy k packs of

Scilla [17]

The total price would be $3.56 times however many you bought, so the correct equation would be x = 3.56k.

4 0

3 years ago

Please help with my algebra homework and explain if you can

balandron [24]

$A= \frac{1}{2} h (x+y)$

we have to solve for x , solving for x means , we have to isolate x one one side , by shifting all other variables to other side

$A= \frac{1}{2} h (x+y)$

Multiply both sides by 2

2A = h(x+y)

Divide both sides by h

2A/h = x+y

Subtract y from both sides

$\frac{2A}{h} -y =x$

$x=\frac{2A}{h} -y$

5 0

3 years ago

Which equation has the least steep graph?

disa [49]

Answer:

D. y= -6x+1

Step-by-step explanation:

A is wrong becaue it i the most steep. The larger the slope the steeper it will be. If you still do not understand it may help you to roughly graph the lines on a pieace of paper.

**Note: in y=mx+b, m is the slope**

7 0

3 years ago