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stepan [7]
3 years ago
9

Translate the sentence into an inequality. Twice the difference of a number and 4 is at most -21. Use the variable x for the unk

nown number.
Mathematics
1 answer:
GREYUIT [131]3 years ago
6 0

Answer:

2x-8\leq -21

Step-by-step explanation:

At Most=\leq

Twice the difference of a number and 4:

2(x-4)

2x-8

There you have it!

P.S. Might be wrong. A bit late for me.

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Ava estimates that 475 songs will fit on her iPad. The actual amount of songs that fit is 350. Find her percent of error.
alukav5142 [94]

Given:

Ava estimates that 475 songs will fit on her iPad.

The actual amount of songs that fit is 350.

To find:

The percent of error.

Solution:

We know that,

\text{Percent error}=\dfrac{\text{Estimated values - Actual value}}{\text{Actual value}}\times 100

Putting the given values, we get

\text{Percent error}=\dfrac{475-350}{350}\times 100

\text{Percent error}=\dfrac{125}{350}\times 100

\text{Percent error}=\dfrac{250}{7}

\text{Percent error}\approx 35.71\%

Therefore, the percent of error is 35.71%.

3 0
3 years ago
The mean of four numbers is 9 what is the total of the four numbers?
BigorU [14]

Answer:

36

Step-by-step explanation:

36/4 = 9 wish this helps!

4 0
3 years ago
I need help with this plz
Anni [7]

Answer:

exponent of x is 33

exponent of y is 0

Step-by-step explanation:

you need to combine all powers (exponents) of x, and all exponents of y separately.

remember : x to the power of a divided by x to the power of b is x to the power of (a-b).

when multiplying, the "-" turns into a "+".

so, we have actually for x the exponent calculation :

8 - 14 -(-39) = 8 - 14 + 39 = 33

so, x³³ remains.

and for the y exponents

-26 -(-5) -(-21) = -26 + 5 + 21 = 0

so, all the y expressions eliminate each other and y⁰ remains.

4 0
2 years ago
What is the equation of the function in slope-intercept form?
Rasek [7]
To write this equation, you need use the formula y=mx+b.

m represents the slope and b represents the y intercept.

The y intercept is the point where the line touches the y axis. In this case, the y-intercept is 1.

The slope is just rise over run from one coordinate to another. The slope is 2/-1 which could be simplified as -2. The slope just means that we are going up 2 and left 1 to get to a new coordinate.

The equation is y=-2x+1

Have a good day! :)
7 0
2 years ago
Un número entero de tres dígitos es igual a 25 veces la suma de sus dígitos. Si los tres dígitos se invierten, el número que res
Pavlova-9 [17]
La repuesta es 375,porque 3+7+5 es 15,y 15x25 es 375. Tambien el digito de las decenas es uno menos que la suma de los digitos de las centenas y de las unidades.
5 0
3 years ago
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