MATHEMATICS HIGH SCHOOL

Solve for x. 5x = -25 x = -125 x = -30 x = -20 x = -5

Answers

Answer 1

Answer:

The solution of the given equation is x = -5

So, the correct solution for x is x = -5.

Given is an equation 5x = -25, we need to solve for x.

We must place the variable x on one side of the equation in order to solve the equation 5x = -25 for x.

The objective is to identify the x value that solves the equation.

Here is how to calculate the equation step by step:

Start with the first step's equation, 5x = -25.

Step 2: We want to remove the 5th coefficient from x in order to isolate it. In order to accomplish it, we'll use the inverse operation, which involves multiplying both sides of the equation by 5:

(5x) / 5 = (-25) / 5.

Step 3: The right side becomes -5 while the left side becomes x.

x = -5.

Step 4: At this point, we know that x has the value -5.

Hence, the answer to the equation is x = -5.

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Answer 2

Answer: x=-5 cause you have divide both sides by 5 so you could get x and -25/5=-5 therefore x=-5 i think...

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Jeff is going to cut this shape out of a piece of paper. He will fold the paper on the dotted lines and connect all the edges. What solid will Jeff have when he is done?

Answers

Can we have a Picture to see the shape

Answer:

noo

Step-by-step explanation:

Plz help!!! I will give brainliest!!! No links!! Also plz explain how you got ur answer!Lainee brought a book to read on the way to California. Once we go to the hotel, she had read 5/6 of it. What fraction of the book does she have left to read?

Answers

1/6th left because she divided her book into 6ths and she red 5/6 and 5-6 is 1 so that means she still has 1/6 of the book to read

Answer:

1/6

Step-by-step explanation:

Because because there are six books in total and she only red 5 in the way

[(a+3)x8+26]:5=18 va multumesc frumos

Answers

$[(a+3)*8+26]:5=18 \n\n (a+3)*8+26=18*5 \n\n (a+3)*8+26=90 \n\n (a+3)*8=90-26 \n\n (a+3)*8= 64 \n\n a+3=64:8 \n\n a+3=8 \n\n a=8-3 \n\n \boxed{a=5}$

so [(a+3)8+26]/5=18
multiply out
[8a+24+26]/5=18
add
(8a+50)/5=18
bultiply both sides by 5
8a+50=90
subtract 50 from both sides
8a=40
divide both sides by 8
a=5

Steve read a total of 9 books over 3 months. If Steve has read 15 books so far, how manymonths has he been with his book club? Assume the relationship is directly proportional.

Answers

Answer:

5 months

Step-by-step explanation:

9/3=3

15/3=5

if the equation is h= -2x^2 + 12x -10

how do I find the max height?

Answers

One other way to solve this question is finding the derivative

$h=-2x^2+12x-10$

$h'=-4x+12$

now we have to find when this function will be zero

$-4x+12=0$

$\boxed{\boxed{x=3}}$

now we just replace this value at our initial function

$h=-2x^2+12x-10$

$h_(max)=-2*(3)^2+12*3-10$

$h_(max)=-18+36-10$

$\boxed{\boxed{h_(max)=8}}$

The maximum height is the ordinate value of the vertex of the parabola, ie: yV

Calculating yV:

$y_V=(-\Delta)/(4a)\n \n y_V=-[(12^2-4*(-2)*(-10)])/(4*(-2))=(-(144-80))/(-8)=(-64)/(-8)=8$

Okay so I'm struggling at this particular set of questions on Khan Academy. Anyone got any ideas?

Answers

my best guess is 135 because if it can fit cubes with 1/4 inch sides, that means it can fit 9 cubes going lengthwise, and 3 cubes wide which is 27 cubes on the base. then it can fit 5 cubes, all 1/4 inch going up because in 1 1/4 inch there are 5 quarter inches. so if you multiply 27 by 5 you get 135. I hope that helps a little bit:)

I know this is not much help but I wrote all my work down and got 135 as well so I’m glad you got the correct answer. You will struggle sometimes, especially with challenging questions like that but remember it will always get easier as you go alone((: good luck to you!

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