MATHEMATICS MIDDLE SCHOOL

Alexa worked 30 hours last week and earned $450. her pay has now been increased by 20% which equation describes her new rate of pay P, baesed on the numbe rof hourse, h, worked

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

Answer 2

Answer: The answer would be d also can I get BRAINLIEST or something I need it

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Expand and simplify (x+2)(x+1)

Answers

So first you would need to FOIL the problem (first-outer-inner-last) so you would multiply x by x and get {x²} then you would multiply x by 1 so you would get just plain {x} then multiply 2 by x so to get {2x} then multiply the last terms 2 and 1 together to get {2} so then put it all together = x² + x + 2x + 2 then you add like terms together so you end up with = x² + 3x + 2 as the answer

Here, we have to FOIL.

(x+2)(x+1) = x^2+3x+2

Can you draw trapezoid three right angles

Answers

its impossible to draw a trapezoid with just three right angles.

a trapezoid has 4 sides, which means all the angles inside the trapezoid must add up to 360 degrees.

if you have just 3 right angles (90x3), you already use up 270 degrees. Leaving you with just 90 degrees left, which is also a right angle. That means, there has to be four, if you have at least 3.

Choose the equation below that represents the line passing through the point (2, -4) with a slope of 1/2. A) y = 1/2 x + 5
B) y = 1/2 x - 3
C) y = 1/2 x - 5
D) y = 1/2 x + 3

Answers

Choose the equation below that represents the line passing through the point (2, -4) with a slope of 1/2.
A) y = 1/2 x + 5
B) y = 1/2 x - 3
C) y = 1/2 x - 5
D) y = 1/2 x + 3

we only need to put the values and find the equation

$y=(1)/(2)*x+5$

$-4=(1)/(2)*2+5$

$-4=6$

False

$y=\frac{}{}*x-3$

$y=(1)/(2)*x-3$

$-4=(1)/(2)*2-3$

$-4=-2$

False

$y=(1)/(2)*x-5$

$-4=(1)/(2)*2-5$

$-4=-4$

True

$y=(1)/(2)*x+3$

$-4=(1)/(2)*2+3$

$-4=4$

False

$\boxed{\boxed{\therefore~the~equation~that~represents~the~line~is~~C}}$

$\left \{ {{y=-4}\atop{x=2}}\right. \n \n A)\n -4=\frac12 \cdot 2+5\n -4=1+5\n -4=6\n No\n \n B)\n -4=\frac12 \cdot 2-3\n -4=1-3\n -4=-2\n No\n\n C)\n -4\frac12 \cdot 2-5\n -4=1-5\n -4=-4\n Yes\n \n D)\n -4=\frac12 \cdot 2+3\n -4=1+3\n -4=4\n No\n \n Answer:C$

Use mental mAth to solve 122+306

Answers

122
+ 306
-------------
428

Mental math is using your brain so you would separate the problem into pieces to make it easier, for example first you would do 100 + 300 = 400 them add (22+6) which is 28 so 400 plus 28 is 428

Solve the system of linear equations by substitution y=x-4
y=4x-10

Solution: ( , )

Answers

The value of the x is 2 and y is -2.

Given that,

The system of equation is;

$\rm y=x-4\n\ny=4x-10$

We have to determine

The value of x and y by using the substitution method.

According to the question

The system of equation is;

$\rm y=x-4\n\ny=4x-10$

Substitute the value of y from equation 1 to equation 2

$\rm y = x-4\n\n4x-10=x-4\n\n4x-x=-4+10\n\n3x=6\n\nx = (6)/(3)\n\nx=2$

Substitute the value of x in equation 1

$\rm y = x-4\n\ny = 2-4\n\ny = -2$

Hence, The value of the x is 2 and y is -2.

To know more about the Substitution Method click the link given below.

s://brainly.com/question/15683891

There is the equal values method, so you can do:

x-4 = 4x-10 (remove x from both sides)
-4 = 3x -10 (add ten to both sides)
6 = 3x (devide by 3x)
2 = x

Check: (by plugging it into the equation)
y = 2-4 and y = 8-10
y = -2 and y = -2
that's matches so it is correct...
YOUR ANSWER IS:
(2, -2)

I hoped I helped sort things out, and have a great day!

DeShawn uses 3/4 of a box of rice to cook dinner. The portion he uses weighs 12 ounces. Write and solve and equation to find the weight of the full box kf rice.

Answers

Answer:

$16\ ounces$

Step-by-step explanation:

we know that

$3/4$ of a box of rice weighs $12$ ounces

so by proportion

Find the weight of the full box of rice

$(12)/((3/4))(ounces)/(box) =(x)/(1)(ounces)/(box)\n \nx=12/(3/4)\n \nx=16\ ounces$

3/4 box = 12 oz

we first need to find 1/4 of a box. to do that divide both sides by 3

1/4 box = 4 oz

for a full box which is 4/4 multiply both sides by 4

1/4 x (4) = 4 x (4) oz

4/4 ( or one whole) = 16 oz

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