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2 years ago

What is equivalent to 7w +7w

Mathematics

1 answer:

MariettaO [177]2 years ago

4 0

Answer:

14w

Step-by-step explanation:

Hope this helps

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Simplify 9r - 4s -6r + s

Serggg [28]

your answer is

3r-3s

3 0

2 years ago

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After the addition of an acid, a solution has a volume of 90 milliliters. The volume of the solution is 3 milliliters greater th

11111nata11111 [884]

Answer: $21.75\ milliliters$

Step-by-step explanation:

Let be "x" the original volume of the solution (in milliliters) before the acid was added and "y" the volume of the solution (in milliliters) after the addition of the acid.

Set up a system of equations:

$\left \{ {{x+y=90} \atop {y=3x+3}} \right.$

Applying the Substitution Method, you can substitute the second equation into the first equation and then solve for "x":

$x+y=90\\\\x+(3x+3)=90\\\\4x+3=90\\\\x=21.75$

6 0

3 years ago

What is the value of x?<br><br> This is the last question I don’t get

Stels [109]

Answer:

The answer is 166

Step-by-step explanation:

x+90+24

4 0

3 years ago

Read 2 more answers

Help me with this please everyone

cupoosta [38]

First, let's simplify each expression by combining like terms:

A: 9x-3x-4 = 6x-4

B: 12x-4 = 12x-4 (Already Combined terms)

C: 5x+x-4 = 6x-4

When looking at the list of equations, it is clear that only Expression A and C are equivalent. Brianna failed to combine like terms and plug in more points than 0.

I Hope this Helps!
-Sinnamin

3 0

3 years ago

How am I supposed to integrate this?

svlad2 [7]

$6x^2-4x+1=6\left(x-\dfrac13\right)^2+\dfrac13\ge0$

which means the parabola lies above the x-axis over its entire domain. This means the area is given by

$\displaystyle\int_{-1}^2(6x^2-4x+1)\,\mathrm dx=2x^3-x^2+x\bigg|_{x=-1}^{x=2}=10-(-5)=15$

4 0

3 years ago