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3 years ago

Which graph best represents the equation 9x - 3y =15?

Mathematics

1 answer:

Over [174]3 years ago

8 0

It would be on a positive incline and pass through the points (0,-5), (1, -2), and (4,3)

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Also this is apart of it

yawa3891 [41]

Ya awesome keep up the great work ❤️❤️❤️

6 0

3 years ago

A retailer who sells fashion boots estimates that by selling them for x dollars each, he will be able to sell 70−x boots each we

Marat540 [252]

Answer: $35 is the selling price and $1225 is the maximum revenue.

Step-by-step explanation:

Since we have given that

$R(x)=-x^2+70x$

We need to find the maximum revenue.

So, We will first derivative it w.r.t. x.

So, it becomes,

$R'(x)=-2x+70$

Now, we will find critical points.

So, R'(x) = 0

So, it becomes,

$-2x+70=0\\\\-2x=-70\\\\x=\dfrac{70}{2}=35$

Now, to check whether it yields maximum revenue or not.

So, second derivative w.r.t. x, we get that

R''(x) = -2<0

So, At $35, it yields maximum revenue.

Amount of maximum revenue would be

$R(35)=-(35)^2+70\times 35=-1225+2450=\$1225$

Hence, $35 is the selling price and $1225 is the maximum revenue.

7 0

3 years ago

PLZ HELP ASAP PLZZZ An online store sells each video game for x dollars. Which situation can be represented by this inequality?

ehidna [41]

Answer:

the answer is The cost of 7 games is greater than the cost of 5 games plus a $3 digital book

Step-by-step explanation:

becuse 7>5+3 means 7 is greater

5 0

3 years ago

A science teacher wants to prepare a resource pack for each of the 120 pupils in year 10. She will need to photocopy 40 pages pe

Tresset [83]

Answer:

She would save £5

Step-by-step explanation:

→ First work out the cost of items for one student. Work out cost of the photocopying

40 × £0.02 = £0.80

→ Add the cost of the one folder

£0.80 + £0.70 = £1.50

⇒ Now we know £1.50 is the amount of money it costs for one student, we multiply that by 120 because there are 120 pupils

£1.50 × 120 = £180

→ £180 is the total cost and now we minus that from the online price of £175

£180 - £175 = £5

6 0

3 years ago

Use the distributive property to remove the parentheses.<br> (v-2)9

Sunny_sXe [5.5K]

Answer:

9v-18

Step-by-step explanation:

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5 0

3 years ago