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3 years ago

Please help! giving BRAINLIEST

Mathematics

1 answer:

Stolb23 [73]3 years ago

7 0

I think A would be your best answer or C because of the down hill slope. Also I would check with your teacher

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Solve the inequality 7(x + 4) > 0.

matrenka [14]

Answer:

x > - 4

Step-by-step explanation:

Given

7(x + 4) > 0 ← distribute left side

7x + 28 > 0 ( subtract 28 from both sides )

7x > - 28 ( divide both sides by 7 )

x > - 4

3 0

3 years ago

Read 2 more answers

Answer for both of them<br> 3(4x - 1)<br> 2x + 4

kobusy [5.1K]

Answer: 12x-3 and 2x+4

Step-by-step explanation: i don’t know if i wanted to add them together. you j distribute that’s how i got my answer.

5 0

3 years ago

Read 2 more answers

You are working as a sales clerk in a fabric store and need to determine the price on some fabric. The fabric store sells for $6

mariarad [96]

Answer:

$6.10

Step-by-step explanation:

Given the fabric store sells the fabric for $6.97 per yard

Given that a customer buys 7/8 yard of fabric.

Let the cost the customer pays be x then

$1 yard---->6.97$

$\frac{7}{8} yard---->x$

on cross multiplication we get

$x\time 1=6.97\times \frac{7}{8}$

x=6.01

Therefore the amount the customer should pay is $6.01

6 0

2 years ago

One alloy is 2 parts iron to 3 parts silver and another alloy is 7 parts iron to 3 parts silver. How much of each should be comb

Shalnov [3]

Let x be your first alloy
2/5x+7/10(30-x)=1/2(30)
4x+210-7x=150
3x=60
x=20
So, you need 20 lbs of the first alloy, and 10 parts of the second to make 30 lbs of half iron and half silver alloy!

8 0

3 years ago

3x<img src="https://tex.z-dn.net/?f=3x%5E%7B2%7D%20%2B8x-10" id="TexFormula1" title="3x^{2} +8x-10" alt="3x^{2} +8x-10" align="a

Licemer1 [7]

The solution to the quadratic equation 3x² + 8x - 10 by using the quadratic formula is x = 0.927 or -3.594

<h3>Solving quadratic equations.</h3>

Quadratic equations are algebraic expressions that are represented in the power of the second degree. They usually take the form ax² + bx + c

From the given information, we are to solve the quadratic equation:

3x² + 8x - 10

Using the quadratic formula:

$\mathbf{=\dfrac{-b \pm \sqrt{b^2 - 4ac}}{2a}}$

where:

a = 3
b = + 8
c = - 10

$\mathbf{= \dfrac{-(8)) \pm \sqrt{(8)^2 - 4(3 \times (-10))}}{2(3)}}$

$\mathbf{= \dfrac{-(8)) \pm \sqrt{64 -4 (-30)}}{6}}$

$\mathbf{= \dfrac{-(8)) \pm \sqrt{64+120}}{6}}$

x = 0.927 or -3.594

Learn more about solving quadratic equations here:

brainly.com/question/8649555

#SPJ1

3 0

1 year ago

Please help! giving BRAINLIEST​

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