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Novosadov [1.4K]
3 years ago
9

X = 18 is a solution to this equation X + 79 = 98 Question 4 options: True False

Mathematics
2 answers:
deff fn [24]3 years ago
7 0
X+79=98 (subtract 79 to isolate x)
X=19 so it is false
Aleonysh [2.5K]3 years ago
5 0

Answer:

false

Step-by-step explanation:

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Count how many pieces there are and then seer how many is that specific Piece and for percentage make it 100% of this amount then divide the different one out
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Olga has 5 times as many dimes as nickels. if she has $3.30, how many of each coin does she have
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She should have 
nickles: 6 . =30
dimes: 30 . = 300
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6 0
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What is the simplest fraction whose value is equal to the number $\textcolor{red}{\heartsuit}$ depicted on this number line?
GenaCL600 [577]

Answer:

Step-by-step explanation:

8 0
2 years ago
What is the following product?<br> PLEASE HELP,I'M STRUGGLING SO MUCH!
Licemer1 [7]

(x√7 - 3√8 ) (x√7 - 3√8 )

To solve this question you must FOIL (First, Outside, Inside, Last) like so

First:

(x√7 - 3√8 ) (x√7 - 3√8 )

x√7 * x√7

For this you will multiply the numbers/variables on the out side together and separately multiply the values inside the square root together

(x*x)(√7*7)

x²√49

7x²

Outside:

(x√7 - 3√8 ) (x√7 - 3√8 )

x√7 * -3√8

(-3*x)(√7*8)

-3x√56

√56 can be further simplified to: 2√14

Now we have: -3x2√14 ---> -6x√14  

Inside:

(x√7 - 3√8 ) (x√7 - 3√8 )

The process is the exact same as in the "outside"

x√7 * -3√8

(-3*x)(√7*8)

-3x√56

√56 can be further simplified to: 2√14

Now we have: -3x2√14 ---> -6x√14

Last:

(x√7 - 3√8 ) (x√7 - 3√8 )

-3√8 * -3√8

(-3*-3)(√8*√8)

9√64

9*8

72

Now combine all the products of the FOIL together like so...

7x² - 6x√14 - 6x√14 + 72

Combine like terms:

 

7x² - 6x√14 - 6x√14 + 72

^^^When you add together square roots the number inside the radical stays the same, and you combine the numbers/variables attached to the radical on the outside

You selected the correct answer:

7x² -12x√14 + 72  

Hope this helped!

~Just a girl in love with Shawn Mendes

5 0
3 years ago
Segment AB is shown on the graph. Which shows how to find the x-coordinate of the point that will divide segment AB into a 2:3 r
GrogVix [38]

Answer:

x=\dfrac{2}{5}\times (2+3)-3

Step-by-step explanation:

The given ratio is 2:3.

x₁ = -3, x₂ = 2

We need to find the x-coordinate of the point that will divide segment AB into a 2:3 ratio. The formula is as follows :

x=\dfrac{a}{a+b}(x_2-x_1)+x_1

Put all the values,

x=\dfrac{2}{2+3}(2-(-3))+(-3)\\\\=\dfrac{2}{5}\times (2+3)-3

Hence, the correct option is (d).

5 0
3 years ago
Read 2 more answers
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