Devin made some mistakes. Identify where he made each mistake:

1 answer:

mihalych1998 [28]2 years ago

4 0

When doing the order of operations and you are put in a situation where you do two different operations, solve the problem from left to right.
In this case instead of doing 6*4 first do 24/6 first.

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the product of two consecutive integers is 420. an equation is written in standard form to solve for the smaller integer by fact

Xelga [282]

Start by writing your own expression.

x is the smaller number and x + 1 is the next number

x(x + 1) = 420

x^2 + x - 420 =0 ⇒ constant = -420

6 0

2 years ago

Read 2 more answers

Simplify the expression: 3x (4x-6) ————— 2x(3x)

Marina86 [1]

Answer:

$=\frac{2x-3}{x}$

Step-by-step explanation:

$=6x^2\\\mathrm{Remove\:parentheses}:\quad \left(a\right)=a\\=\frac{3x\left(4x-6\right)}{2x\cdot \:3x}\\2x\cdot \:3x=6x^2\\=\frac{3x\left(4x-6\right)}{6x^2}\\\mathrm{Cancel\:}\frac{3x\left(4x-6\right)}{6x^2}:\quad \frac{4x-6}{2x}\\=\frac{4x-6}{2x}\\\mathrm{Factor}\:4x-6:\quad 2\left(2x-3\right)\\=\frac{2\left(2x-3\right)}{2x}\\\mathrm{Divide\:the\:numbers:}\:\frac{2}{2}=1\\=\frac{2x-3}{x}$

7 0

3 years ago

WILL MARK BRAINLIEST ANSWER!!!!!!! Quadrilateral KLMN is similar to quadrilateral WXYZ. Write a proportion that must be true for

snow_tiger [21]

Answer:

Since, In Quadrilaterals KLMN and quadrilateral WXYZ,

Sides Kl, LM, MN and NK are corresponding to the sides WX, XY, YZ and ZW respectively.

Also, If two shapes are similar the ratio of their corresponding sides must be same are in same proportion,

Here, Quadrilateral KLMN is similar to quadrilateral WXYZ,

Therefore,

$\frac{KL}{WX}=\frac{LM}{XY}=\frac{MN}{YZ}=\frac{NK}{ZW}$

Which is the required proportion that must be true for the given figure.

8 0

3 years ago

I need help ASAP cause I'm stuck

Gre4nikov [31]

Answer:-16r^7

Step-by-step explanation:

8 0

3 years ago

In the standard (x, y) coordinate plane, what is the y-intercept of the line given by the equation <img src="https://tex.z-dn.ne

Agata [3.3K]

the y-intercept will be $\frac{8}{5}$

the standard line equation is y = mx + b, where y is the y point, x is the x point, m is the slope, and b is the y-intercept.

to get the y intercept, we need to transform into the line equation, and caculate out b.

3x + 5y = 8
so 5y = 8 -3x
then y = $\frac{8}{5}$ - $\frac{3}{5}$ x
which means that $\frac{8}{5}$ = the y intercept.

6 0

3 years ago