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gladu [14]
3 years ago
10

Answer the question below please

Mathematics
1 answer:
laila [671]3 years ago
4 0

Answer:

30 shirts

Step-by-step explanation:

We know the cost of the shirts was  p x 15

We also know she received a $50 discount which we can write as:

(p x 15) - 50 or 15p-50

And we know she spent $400 so we can write:

15p -50 = 400

add 50 to each side 15p=450

divide each side by 15p/15 = 450 /15

p = 30

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HELP PLZ
Alexxandr [17]

Answer:

x=\frac{-7-\sqrt{17}}{2}\textrm{ or }x=\frac{-7+\sqrt{17}}{2}

Step-by-step explanation:

Given:

The equation is given as:

x^2=-7x-8

Rearrange the above equation in standard quadratic equation of the form ax^2+bx+c=0

Adding 7x + 8 on both sides, we get

x^2+7x+8=0

Here, a=1,b=7,c=8

Now, we solve this using quadratic formula,

x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}\\x=\frac{-7\pm \sqrt{7^2-4(1)(8)}}{2(1)}\\x=\frac{-7\pm \sqrt{49-32}}{2}\\x=\frac{-7\pm \sqrt{17}}{2}\\\\\\\therefore x=\frac{-7-\sqrt{17}}{2}\textrm{ or }x=\frac{-7+\sqrt{17}}{2}

7 0
4 years ago
Read 2 more answers
(1+5^2)-16(1/2)^3<br><br> step by step of solving this
riadik2000 [5.3K]

Power: 5 ^ 2 = 25

Add: 1 + 25 = 26

Power: 1

2

^ 3 = 13

23

= 1

8

Multiple: 16 * 1

8

= 16 · 1

1 · 8

= 16

8

= 2 · 8

1 · 8

= 2

Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(16, 8) = 8

Subtract: 26 - 2 = 24


7 0
3 years ago
Explain in words,how to find the product of -4(-1.5) using a number line. Where do you end up?
Gemiola [76]

Answer:

so u multiply negative four times nagative 1.5

6 0
3 years ago
Does the following represent a function? <br> f = [ (3, -1), (2, 5), (4, -6), (3, 4), (5, -8) ]
ella [17]

Answer:

Not a function

Since x= produces y- -1 and y=-4, the relation (3,-1),(2,5),(4,-6),(3,4),(5,-8) is not a function.

7 0
3 years ago
Write a piecewise function for the graph
netineya [11]

Answer:

You can used it to help me out with a good time with this and

Step-by-step explanation:

5 0
3 years ago
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