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wel
3 years ago
9

The art club has a goal to raise at least $500 by selling paintings to the student body for $15 each. They have already spent $7

0 buying paint. Which inequality could be used to find the number of paintings the art club needs to sell to reach their goal?
Mathematics
1 answer:
natali 33 [55]3 years ago
3 0

Answer:

15x - 70 = 500

Step-by-step explanation:

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VikaD [51]

Answer:

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4 0
3 years ago
Two buildings on opposites sides of a highway are 3x^3- x^2 + 7x +100 feet apart. One building is 2x^2 + 7x feet from the highwa
iVinArrow [24]

Given:

Distance between two buildings = 3x^3- x^2 + 7x +100 feet apart.

Distance between highway and one building = 2x^2 + 7x feet.

Distance between highway and second building = x^3 + 2x^2 - 18 feet.

To find:

The standard form of the polynomial representing the width of the highway between the two building.

Solution:

We know that,

Width of the highway = Distance between two buildings - Distance of both buildings from highway.

Using the above formula, we get the polynomial for width (W) of the highway.

W=3x^3- x^2 + 7x +100-(2x^2 + 7x)-(x^3 + 2x^2 - 18)

W=3x^3- x^2 + 7x +100-2x^2-7x-x^3 -2x^2+18

Combining like terms, we get

W=(3x^3-x^3)+(- x^2 -2x^2-2x^2)+ (7x -7x)+(100 +18)

W=2x^3-5x^2+0+118

W=2x^3-5x^2+118

Therefore, the width point highway is 2x^3-5x^2+118.

8 0
3 years ago
Which expreshion is equivalent to 9+5x-5+3x
irina1246 [14]

Answer:

8x + 4

Step-by-step explanation:

change it around

9-5   5x+3x.

9-5=4,  5x+3x=8x.

4+8x or 8x+4

4 0
3 years ago
Rhett is solving the quadratic equation 0= x2 – 2x – 3 using the quadratic formula. Which shows the correct substitution of the
Brums [2.3K]
A = 1
b = -2
c = -3

And when you plug in and solve you'll get correct answers of x = 3 and x = -1
5 0
3 years ago
Read 2 more answers
If C is between A and B, then answer the following if AB=40, AC= 2x+10, CB= 3x-5
Marat540 [252]

If C is between A and B, then, we can write the equation

AB = AC + CB


Substitute the value of AB and the expressions for AC and CB in terms of x.


40 = (2x+10)+(3x-5)


We can now solve for x.



40-10+5= 2x+3x



35=5x


Dividing by 5.


7=x


AB=40



AC=2(7)+10



AC=14+10



AC=24




BC=3(7)-5



BC=21-5


BC=16



6 0
4 years ago
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