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juin [17]
4 years ago
15

Which are examples of unit rates? Check all that apply.

Mathematics
1 answer:
arlik [135]4 years ago
8 0

Answer: 8 students per team and 4 pencils each student

Step-by-step explanation:

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5x-4x+3=4x-12<br> A)4<br> B)5<br> C)-5<br> D)-4
slavikrds [6]

Answer:

B.) 5

Hope this helps :)

Step-by-step explanation:

5x - 4x + 3 = 4x - 12

x + 3 = 4x - 12

 +12               +12

x + 15 = 4x

-x         -x

15 = 3x

x = 5

6 0
3 years ago
Read 2 more answers
Hello, help me please))
Fed [463]

Answer:

  • 6
  • 9
  • 1/8
  • -10/11

Step-by-step explanation:

You can rewrite the given log expressions to express them in terms of ln(a), ln(b), and ln(c). Then substituting the given values will produce the value of the expression.

Or, you can define the variables 'a', 'b', and 'c' and let your calculator compute these directly.

__

<h3>1.</h3>

  \ln\left(\dfrac{a^4}{b^4c^{-2}}\right)=4\ln(a)-(4\ln(b)-2\ln(c))=4\cdot2-4\cdot3+2\cdot5=\boxed{6}

<h3>2.</h3>

  \ln\left(\sqrt{b^{-2}c^4a^2}\right)=\dfrac{1}{2}\left(-2\ln(b)+4\ln(c)+2\ln(a)\right)=\ln(a)-\ln(b)+2\ln(c)\\\\=2-3+2\cdot5=\boxed{9}

<h3>3.</h3>

  \dfrac{\ln(a^1b^2)}{\ln(bc)^2}=\dfrac{\ln(a)+2\ln(b)}{(\ln(b)+\ln(c))^2}=\dfrac{2+2\cdot3}{(3+5)^2}=\dfrac{8}{64}=\boxed{\dfrac{1}{8}}

<h3>4.</h3>

  \ln(c^{-2})\left(\ln\dfrac{a}{b^{-3}}\right)^{-1}=\dfrac{-2\ln(c)}{\ln(a)-(-3)\ln(b)}=\dfrac{-2(5)}{2+3\cdot3}=\boxed{-\dfrac{10}{11}}

_____

The applicable rules of logarithms are ...

  • ln(ab) = ln(a) +ln(b)
  • ln(a/b) = ln(a) -ln(b)
  • ln(a^b) = b·ln(a)
  • ln(a) = b  ⇔  a = e^b

Of course, a square root is the same as a 1/2 power.

7 0
2 years ago
What is the value of 'x' : <img src="https://tex.z-dn.net/?f=4x%20%2B%203%20%3D%2016" id="TexFormula1" title="4x + 3 = 16" alt="
Oksana_A [137]

Answer:

x = 3.25

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS =

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

...and is the order of operation.

First, subtract 3 from both sides of the equation:

4x + 3 = 16

4x + 3 (-3) = 16 (-3)

4x = 16 -3

4x = 13

Next, dvide 4 from both sides:

(4x)/4 = (13)/4

x = 13/4

x = 3.25

x = 3.25 is your answer.

~

6 0
3 years ago
Read 2 more answers
-3x-5=16<br> -4(y-2)=12<br> someone please help me
arlik [135]

1.) x=7

2.)y=-1

Step-by-step explanation:

Hope You Enjoy !

Mark me!

4 0
2 years ago
Read 2 more answers
Sarah bought a 20oz can of tomato sauce for $25.40.What is the unit Price per ounce
ddd [48]
If the can is 20oz and cost $25.40, the price per ounce would be:

\frac{price}{ounce}

price = $25.40
ounce = 20oz

so:

\frac{25.40}{20}

which comes out to be:

$1.27/oz

So each ounce of tomato sauce costs $1.27!

8 0
3 years ago
Read 2 more answers
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