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3 years ago

Equations and functions

Mathematics

2 answers:

Brilliant_brown [7]3 years ago

6 0

Answer:

first one

Step-by-step explanation:

Absolute value functions usually have that shape. The only absolute value function out of all of the answer choices is the first one.

Anit [1.1K]3 years ago

6 0

Answer:

it is c

Step-by-step explanation:

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Solve for x: x/8 - x/9 = 1

eduard

Answer:

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Step-by-step explanation:

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2 years ago

Ebony earned scores of 72 70, 81, 99, and 88 on five math tests. Determine her

Minchanka [31]

Let it be x

$\boxed{\sf Average=\dfrac{Sum\:of\:terms}{No\:of\:terms}}$

$\\ \sf\longmapsto \dfrac{72+70+81+99+88+x}{6}=83$

$\\ \sf\longmapsto \dfrac{410+x}{6}=83$

$\\ \sf\longmapsto 410+x=498$

$\\ \sf\longmapsto x=498-410$

$\\ \sf\longmapsto x=88$

6 0

3 years ago

Solve for A in the equation AB + CD + EFG = Z.

Semenov [28]

Answer:

A = (Z-CD - EFG)/B

Step-by-step explanation:

AB + CD + EFG = Z.

Subtract CD and EFG from each side

AB + CD + EFG-CD -EFG = Z-CD - EFG

AB = Z-CD - EFG

Divide each side by B

AB /B = (Z-CD - EFG)/B

A = (Z-CD - EFG)/B

7 0

3 years ago

If sx = 35, then x = 7

Ostrovityanka [42]

Answer:

s=5

Step-by-step explanation:

35 divided by 7 equals 5

8 0

3 years ago

Read 2 more answers

Kelsey makes pendants that she would like to sell at an upcoming craft fair. She must pay $200 to rent a booth at the craft fair

lubasha [3.4K]

Answer:

Additional 26 pendants are to be sold to make profit.

Step-by-step explanation:

Rent of booth at the craft fair = $200

Cost of material for each pendant = $7.80

Let Kelsey makes $x$ number of pendants.

To calculate the total spending, we have to add the rent of booth at the craft fair and cost of material for $x$ number of pendants.

Cost of material for $x$ number of pendants = Cost of material for each pendant multiplied by number of pendants

Cost of material for $x$ number of pendants = $7.80 $\times$ $x$

So, total cost = $200 + $7.80 $\times$ $x$

Now, each pendant is sold at $13.50

So, total money made by selling $x$ pendants = $13.50 $\times$ $x$

For making profit, total money made must be greater than the total cost.

Therefore, the inequality becomes:

$\bold{13.50 \times x > 200+7.80\times x }$

Let us solve the inequality now:

$13.50x - 7.80x>200\\\Rightarrow 5.7x > 200\\\Rightarrow \bold{x > 35.08}$

So, at least 36 pendants are to be sold to make a profit.

Additional 36-10 = 26 pendants are to be sold to make profit.

5 0

3 years ago