Is this work right?
Idk if I followed the PEMDAS right

Answers

Answer 1

Answer:

yes you did a very good job

Answer 2

Answer: you seem to have everything down, the one part i dont understant is your work at the bottom, can you show me how you got it? other than that, everything seems very good!

Related Questions

If you were teaching a foreign visitor about checking and savings accounts at banks and credit unions in the USA, which item below would you say consumers of these accounts usually do not have as a protection of their rights?a. Government-backed insurance on the deposits. b. Regulation of bank practices by government agencies. c. A written statement providing the current fees and policies for the account. d. No automatic fees charged to the account.
PLEASE HELP 5. Find the distance of the line segment joining the two points: (2,0) (0,-2)
How do you write 39/10 as a percentage?
(2k + 3)(k - 1)A. 2k^2 + k – 3 B. 2k^2 + k + 2 C. 2k^2 – k – 3 D. 2k^2 – k + 2
Solve the equation 10x+12y=1080

Optimization-Of all rectangles with a perimeter of 10, which one has the maximum area? (Give dimensions)

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Do you want a proof or just the answer?
The answer is: the square (2.5x2.5).

What is the slope of the line that passes through the points (-2, -3), and (5, 4)?

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The to your question answer is 1

$\bf \begin{array}{lllll} &x_1&y_1&x_2&y_2\n % (a,b) &({{ -2}}\quad ,&{{ -3}})\quad % (c,d) &({{ 5}}\quad ,&{{ 4}}) \end{array} \n\quad \n\n % slope = m slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{4-(-3)}{5-(-2)}\implies \cfrac{4+3}{5+2}$

A flashlight costs $12.00. The sales tax is 6%. What is the amount of the sales tax?

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12.00x0.06, which is 0.72, so the sales tax is 72 cents. Basically, what you do to answer these kinds of questions is divide the percentage by 100 (6/100=0.06), because the percentage is out of 100%. Then you multiply that number by the price to get the sales tax. If you wanted to find the total price, add the tax you found to the original price ( in this case would give us $12.72 )

Hope this helps!

If z=4.0 and y= 7.2 what is the value of x?

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Nothing further can be done with this it needs to be explained better

Solve by substitution
y=x+3
y=2x+5

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y = x+3
y = 2x+5
x+3 = 2x+5
x+8 = 2x
x = 8

I think I did that right, anyway.

y=x+3
y=2x+5

1. Solve for the variable that is easiest to find.
In this case I will solve for x.
y=x+3
-3 -3
y-3=x

2. Now plug in (y-3) for x in the other equation.
y=2(y-3)+5 ~use distributive property
y=2y-6+5 ~combine like terms
y=2y-1
-2y=-2y
-y=-1 ~multiply both sides by -1
y=1

3. Since you have a value for y you can plug it in to solve for x.
y=x+3
1=x+3
-3 -3
-2=x

Answers:
y=1
x=-2

How to solve this problem?