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3 years ago

5

Danielle has a $30 gift card to T-Shirt-paradise . She wants to use it to buy a rock band T-shirt and a glitter T-shirt. The roc

k band T-shirt costs $11.95. Let x represent how much Danielle can spend on a glitter T-shirt using her gift card.

1 answer:

hammer [34]3 years ago

5 0

X= $18.05. Hope this helps! can i please get brainliest

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Simplify 9x^2-3x(2x-4)-6x

Vinvika [58]

The answer is
$3 x^{2} +6x$ <span><span>
Remember to combine like terms.
Hop this helps. c:</span></span>

3 0

3 years ago

please help!! Drag each pair of equations to show whether the system has no solution, one solution, or infinitely many solutions

Vanyuwa [196]

For the given system of equations, considering different systems are split by ;, we have that:

No solutions: 3y = x + 2, 9y = 3x + 7; y = 2x + 3, y = 2x + 5

One solution: 2y = 3x, -5y = -10x,; x = 6, y = 9.

Infinitely many solutions: y = 5x + 2, 3y = 15x + 6.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

It's equations can be written in the format:

Ax = b

Using the above format, we have that:

If A is different from zero, the system has one solution.

If A is zero and B is different of zero, the system has no solutions.

If both are zero, the system has infinite solutions.

At the first system, multiplying the first equation by -3 and adding with the second, we end up with:

0y = 0x + 2

0 = -2

Which is a false statement, hence it has no solutions.

At the second system, the equations are multiples, hence it has infinite solutions.

At the third system, the coefficients are not zero and are not multiples, and it has one solution.

In the fourth system, the one solution is already given.

At the fifth system, we have that:

2x + 3 = 2x + 5

0x = 2

Hence no solutions.

To learn more about system of equations, you can take a look at brainly.com/question/24342899

5 0

2 years ago

the original price of the cell phone luc wants to buy 150 the phone is now on sale for $100 what is the percent phone discount

Ronch [10]

150-100 = 50

50/150 = 0.333 = 33.3% discount

8 0

3 years ago

Which represents the solution set to the inequality

Art [367]

$5.1(3 + 2.2x) \ \textgreater \ -14.25 - 6(1.7x + 4)$
Lets expand both multiplications first.
$15.3 + 11.22x \ \textgreater \ -14.25 - 10.2x - 24$
Simplify down the right side.
$15.3 + 11.22x \ \textgreater \ -38.25 - 10.2x$
Add 38.25 to both sides.
$53.55 + 11.22x \ \textgreater \ -10.2x$
Subtract 11.22x from both sides.
$53.55 \ \textgreater \ -21.42x$
Divide by -21.42 on both sides. Because we're dividing by a negative, we need to change the inequality direction.
$-2.5 \ \textless \ x$
This means, out of the options available, (-2.5, ∞) is the correct answer.

3 0

3 years ago

Saline solution A is 10% strength and saline solution B is 5% strength. I have an order for 6 litres of an 8% saline solution. T

kupik [55]

Let x = volume of saline solution A,
y = volume of saline solution B.

We're going to set up two equations.
Firstly, x + y = 6. That gives us y = 6 – x (1)

Second, 0.1x + 0.05y = 0.08•6,
or 0.1x + 0.05y = 0.48 (2)

Substitute (1) into (2):
0.1x + 0.05(6 – x) = 0.48
0.1x + 0.3 – 0.05x = 0.48
0.05x + 0.3 = 0.48

Subtract 0.3 from both sides:
0.05x = 0.18
x = 3.6
Then y = 6 – 3.6 = 2.4

So we have to use 3.6 litres of solution A and 2.4 litres of solution B.

7 0

3 years ago

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