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3 years ago

Y'ALL PLEASE HELP ME!! 50 PTS AND BRAINLIEST!!!!

Mathematics

2 answers:

Mashcka [7]3 years ago

8 0

hmmmmmm c or a will be it hopes this helps but you must of did that a long time a go so you dont need help ??? :(

serious [3.7K]3 years ago

7 0

Plz send me the clear screenshot

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Can somebody please help me with this:)

max2010maxim [7]

Answer: 4=-2x -1 and y=-1 2x

8 0

3 years ago

Please help me!<br> Find WX.

Fynjy0 [20]

So WX is 7y +4 and XY is 21, and when you add those lines you get the whole thing, which is 12y so write that like an equation
12y = 7y+4+21
12y = 7y+25
5y = 25
y = 5

3 0

3 years ago

A section of a rectangle is shaded. The area of the shaded section is 63 square units. What is the value of x?

ella [17]

Answer:

$x=11$

Step-by-step explanation:

We have been given a graph of a rectangle. The area of the shaded section is 63 square units. We are asked to find the value of x.

We can see from our given graph that shaded section forms a trapezoid, so we will use area of trapezoid formula to find the value of x.

$\text{Area of trapezoid}=\frac{(a+b)}{2}\times h$ , where, a and b represents the parallel sides of trapezoid and h represents height of trapezoid.

Upon substituting our given values in above formula we will get,

$63=\frac{7+x}{2}\times 7$

$63=(7+x)*3.5$

Upon dividing both sides of our equation by 3.5 we will get,

$\frac{63}{3.5}=\frac{(7+x)*3.5}{3.5}$

$18=7+x$

Let us subtract 7 from both sides of our equation.

$18-7=7-7+x$

$11=x$

Therefore, the value of x is 11 units.

5 0

3 years ago

Solve for b in the literal equation y = 12x + 12b.<br> b=

pantera1 [17]

Answer:

$b = \frac{y-12x}{12}$

Step-by-step explanation:

subtract 12x from both sides, then divide by twelve.

6 0

3 years ago

Read 2 more answers

Consider the following pair of equations:

Oksana_A [137]

There is a special kind of substitution which some books call it by comparison.

When the two equations are both
y=some function of x
y=some other function of x, then
we can substitute the second equation into the first giving
some function of x = some other function of x and start solving.

For example,
<span>y = –2x + 8
y = x – 1
substitute second into first
x-1=-2x+8
isolate x on left,
3x=9
x=3
second step is to substitute x=3 into second equation to get
y=x-1=3-1=2
Therefore the solution is (3,2)</span>

5 0

3 years ago