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4 years ago

C

Mathematics

1 answer:

stellarik [79]4 years ago

5 0

Can’t do it need more information

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The ratio x : y is equal to 2 : 5, and y is 80% of z. Write an equation to represent the proportional relationship between x and

Mila [183]

Answer:

x : z = 8 : 25

Step-by-step explanation:

Given

x : y = 2 : 5, y is 80% of z

Rearranging the ratios:

x/y = 2/5 ⇒ x/y = 0.4 ⇒ y = x/0.4 ⇒ y = 2.5x
y is 80% of z ⇒ y = 0.8z

Comparing the values of y:

2.5x = 0.8z
x/z = 0.8/2.5
x/z = 0.32
x/z = 32/100
x/z = 8/25
x : z = 8 : 25

4 0

3 years ago

The sum of three consecutive odd numbers is one hundred eleven. what is the smallest of the three numbers?

Juliette [100K]

Answer:

Step-by-step explanation:

Let the three numbers be x,x+2,x+4

x+x+2+x+4=111

3x+6=111

3x=111-6

3x=105

x=105/3

x=35

Three numbers:

35,37,39

smallest of all:35

Hope this helps! C:

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2 years ago

I DONT LIKE THIS APP I WASTE MY POINTS FOR FUN JUST TYPE BOOM BOOM 7 TIMES AND EARN 100 POINTS TADA

Alex777 [14]

Answer:

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2 years ago

A bag of 8 apples costs $2.28. What is the cost of one apple (Show Work)

ASHA 777 [7]

Answer:each apple is between 28 and 29 cents

Step-by-step explanation:

Divide 2.28 by 8 apples

6 0

3 years ago

Read 2 more answers

please explain/give the new equation from the original equation: f(x) = x2 a shifted 3 units down b shifted 4 units right

masha68 [24]

$\bf ~~~~~~~~~~~~\textit{function transformations}
\\\\\\
% templates
f(x)= A( Bx+ C)+ D
\\\\
~~~~y= A( Bx+ C)+ D
\\\\
f(x)= A\sqrt{ Bx+ C}+ D
\\\\
f(x)= A(\mathbb{R})^{ Bx+ C}+ D
\\\\
f(x)= A sin\left( B x+ C \right)+ D
\\\\
--------------------$

$\bf \bullet \textit{ stretches or shrinks horizontally by } A\cdot B\\\\
\bullet \textit{ flips it upside-down if } A\textit{ is negative}\\
~~~~~~\textit{reflection over the x-axis}
\\\\
\bullet \textit{ flips it sideways if } B\textit{ is negative}$

$\bf ~~~~~~\textit{reflection over the y-axis}
\\\\
\bullet \textit{ horizontal shift by }\frac{ C}{ B}\\
~~~~~~if\ \frac{ C}{ B}\textit{ is negative, to the right}\\\\
~~~~~~if\ \frac{ C}{ B}\textit{ is positive, to the left}\\\\
\bullet \textit{ vertical shift by } D\\
~~~~~~if\ D\textit{ is negative, downwards}\\\\
~~~~~~if\ D\textit{ is positive, upwards}\\\\
\bullet \textit{ period of }\frac{2\pi }{ B}$

and with that template in mind.

3 units down, D = -3

4 units to the right, C = -4

f(x) = (x - 4)² - 3

7 0

4 years ago