40%of a number is 160 what is 60% of the same number​

9514 1404 393

Answer:

  x = -20

Step-by-step explanation:

First, simplify the equation. Eliminate parentheses and combine terms.

  3(x -1) -8 = 4(1 +x) +5 . . . . . . . given

  3x -3 -8 = 4 +4x +5 . . . . . . . . eliminate parentheses (distributive property)

  3x -11 = 4x +9 . . . . . . . . . . . . combine like terms

We can put all the x-terms on the right by subtracting 3x from both sides.

  3x -11 -3x = 4x +9 -3x

  -11 = x +9

And we can get the x-term by itself by subtracting 9 from both sides.

  -11 -9 = x +9 -9

  -20 = x . . . . . . . . . . this is the solution

__

Check

3(-20 -1) -8 = 4(1 -20) +5

3(-21) -8 = 4(-19) +5

-63 -8 = -76 +5

-71 = -71 . . . . . . . . . true, the answer checks OK

_____

Additional comment

We observe that the two x-terms are 3x and 4x. The smaller of these is 3x, so when we subtract that from 4x we will have a positive result. That is why we chose to subtract 3x, even though it leaves the x-term on the right side of the equation. We could have subtracted 4x to get -x -11 = 9. I find it easier not to make a mistake if the variable has a positive coefficient.

Answer:

9a + 7c² + 5 + c

Step-by-step explanation:

[tex]16a + {7}^{2} + 5 - 7a + c[/tex]

[tex]16a - 7a = (16 - 7)a = 9a[/tex]

[tex]\boxed{\green{= 9a + {7c}^{2} + 5 + c}}[/tex]

nine hundreds

when writing numbers in unit form u basically just say how much of what number is in each unit place

Answer:

Yes it is

Natural numbers are counting numbers..They can be expressed mathematically

Answer:

10 is a natural number

Step-by-step explanation:

Natural numbers are defined as positive integers or in other words positive whole numbers. 10 is both a positive number and a whole number, there fore it is a Natural number.

Answer:

(-7,4] or -7 < X ≥ 4

Step-by-step explanation:

The domain is all applicable X values for the function. In this function, X can be greater than but not including -7, but has to be less than 4 (inclusive).

You can write your answer as (-7,4] or -7 < X ≥ 4.

Answer:B 24 & 96

Step-by-step explanation:

Answer:

Rate of interest is 2.3%

Answer:

1 when -2<x<2

-1 when |x|>2

Step-by-step explanation:

Hope it helps

Answer:

12.6

Step-by-step explanation:

The square root on 159 is 12.6095202129. Rounding to the nearest tenth should be 12.6.

Problems like this require a calculator for most people.

The approximate value of [tex]\sqrt{159}[/tex] to the nearest tenth is 12.61

Here,

We have to find the approximate value of [tex]\sqrt{159}[/tex] to the nearest tenth.

What is Rounding number?

Rounding is a method of approximating a number to its nearest place value.

Now,

The value of [tex]\sqrt{159}[/tex] = [tex]12.6095202129.[/tex]

To find Rounding number of 12.6095202129 nearest tenth look at the hundredth number. The number is 9 which is greater than 5, then add 1 in tenth place and remove all the number after tenth place.

Hence,

Rounding number of 12.6095202129 nearest tenth is 12.61

Learn more about the rounding number visit:

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Answer is C...Use calculator

Answer: 137

Step-by-step explanation: 11^2−5+(4)(7)/4(3)

121−5+(4)(7)/4(3)

116+(4)(7)/4(3)

116+(28/4)(3)

116+(7)(3)

116+21

137

Answer:

If anyone needs the answer click on the little attachment

Step-by-step explanation:

Answer:

1636mi/hr

Step-by-step explanation:

2400ft/s = _______mi/hr                   1 hr = 3600s          1mi = 5280ft

2400ft/s   x   3600s/hr   x   1mi/5280ft = 1636mi/hr

Answer:

There is no sign it should be unitless

Step-by-step explanation:

Answer and Step-by-step explanation:

Assuming that both values of a and b are positive, we get the result to be positive, so a + sign (though you don't have to put that in front of the value).

When you multiply 2 positive values, the result is always positive.

Multiplying a positive and a negative value results in a negative value.

Multiplying 2 negative values together results in a positive value.

#teamtrees #PAW (Plant And Water)

I hope this helps!

Answer:

[tex] \sqrt{x ^{2} } \\ { = ( {x}^{2} )}^{ \frac{1}{2} } \\ = {x}^{ \frac{2}{2} } = {x}^{1} \\ = { \boxed{ \boxed{x}}}[/tex]

Answer:

1. -29/156 2. 38/45 3. 29/45 4. 113/24 or about 4.7 5. 457/1,  914/2,  1371/3

Step-by-step explanation:

3/13 - 5/12 can be simplified to 36/156 - 65/156. Subtract this and you get -29/156  

4/9 + 2/5 can be simplified to 20/45 + 18/45. Add this and you get

38/45

5/8 - 2/9  can be simplified to 45/72 - 16/72. Subtract this and you get

29/45

3 1/2 + 2 5/12 can be first made irrational to 7/2 + 29/24. This can be simplified to 84/24 + 29/24

113/24 or about 4.7

Not sure about the 457, but to convert it, you multiply it by whatever denominator you have. For example

1x457 = 457/1

2x457 = 914/2

And finally 3x457 = 1371/3

Because of the test she did not take, Brandee scored a 9.75% lower average than her average score once her teacher allowed her to take the test again.

The average obtained once Brandee's teacher allowed him to present the missing test is much more accurate regarding Brandee's ability, this can be identified since it went from an average of 85.14% with 7 scores, to one of 84.25% with 8 scores, different from the average of 74.5% obtained thanks to that score of 0.

BRANDEE'S AVERAGE CALCULATION.

In the exercise, you can see Brandee's scores are: 80%, 92%,  91%, 75%, 89%, 84%, 0%, and 85%, if you calculate the average in that case:

But when Ms. Juarez allowed her to make up the missed test, in which she got 78%, The average increased too much:

As can be identified, most of Brandee's scores are above 80%, therefore, it is considered more accurate that her average is above this value, that is, it is an average that would represent much better the ability of Brandee.

You can see another exercise about average in the next link: https://brainly.com/question/20763190?referrer=searchResults

Answer:

[tex]3 - 4x = - 6( \frac{2}{3x} - \frac{1}{2} ) \\ 3 - 4x = \frac{ - 12}{3x} - \frac{1}{2 } \\ 6 x\times 3 - 4x = 6x \times \frac{ - 12}{3x} - 6x \times \frac{1}{2} \\ 12x - 4x = - 24 - 3x \\ 12x - 4x+ 3x = - 24 \\ 12x - x = - 24 \\ 11x = - 24 \\ \frac{11x}{11} = \frac{ - 24}{11 } \\ x = \frac{ - 24}{11} [/tex]

Answer:

He was 16 years old.

Step-by-step explanation:

[tex] = (2021 - 5) - 2000 \\ = 2016 - 2000 \\ = 16[/tex]

Answer:

16 years old.

Step-by-step explanation:

Today's year is 2021

So,

[tex]2000 + 21 = 2021[/tex]

So, whoever's born in 2000, would be 21 years old in 2021. How old was Kollie five years ago?

[tex]21 - 5 = 16[/tex]

Kollie was 16 years old.

The statement that compares the two numbers correctly is 52.311 > 52.31.

The two numbers have the same tens value, units value, tenth value and hundredth value. But they differ in their thousandth value. One of the numbers have a  thousandth value of 1 and the other a value of 0. The number that has a  thousandth value of 1 is greater.

To learn more about decimals, please check: https://brainly.com/question/15287678

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1) soln,

or,x+8-x=2

or,x-x=2-8

•°•-6 Ans#

Answer:

B

Step-by-step explanation:

I have a few questions about how to get a good friend always to be a good friend always because you are a good friend and you are a good person to work with and you can always make your life easier and more difficult to make your life easier and more difficult to get your life off your hands

Answer:

i think B

i just think,it can be wrong and right also

Answer:

It's D

Step-by-step explanation:

All of the rest of them are rational

Answer:

$168

Step-by-step explanation:

28x6

= 168

Answer:

$168

Step-by-step explanation:

I'm not sure if there are any other factors I need to add, such as tax, but as the question is written 28*6=168.