Mathematics High School

-5a + 15/2a - 25 = 53.2 + 21.8​

Answers

Answer 1

Answer:

a= 40

Step-by-step explanation:

-5a + 7.5a - 25 = 53.2 + 21.8​

add like terms on both sides: 2.5a - 25 = 75

add 25 on both sides: 2.5a = 100

divide both sides by 2.5: a = 40

Answer 2

Answer:

a = 40

Step-by-step explanation:

-5a + 15/2a - 25 = 53.2 + 21.8​: Add 25 to Isolate variable

-5a + 15/2a = 53.2 + 21.8 + 25: Combine Like Terms and create simmilar terms

-10/2a + 15/2a = 100: CLM again

5/2a = 100: multiply both sides by inverse of 5/2 to isolate variable

a = 40

Related Questions

How much would a man who weighs 50 pounds on the moon weigh on Earth?

Answers

You would be 150 lbs due to people being half the weight on the moon.

what is the slope of the line on the graph?​

Answers

Please post a picture than I will be glad to help

Answer:

Step-by-step explanation:

So you need to take two points off the graph. (x,y) and (x,y)

After that use those points to plug it into this equation

your gonna want to take the Y points from both and subtract from each other.

Do the same for the X points.

Y2-Y1

X2-X1

You'll then divide The Y by the X and that the Rise over Run.  When you graph that. That'll be your answer.

Expand: f(x) = x4 − x3 + x2 + x −

Answers

Answer:

7

7

21

30

Step-by-step explanation:

its right i got it on edge 2020

Answer:

keep it simple 7, 7, 21, 30

Step-by-step explanation:

In scientific notation

Answers

The answer is 5 x 10*3

Here are ten numbers 3, 7, 2, 4, 7, 5, 7, 1, 8, 8, what is the mode, median, range and mean

Answers

3,7,2,4,7,5,7,1,8,8

Step-by-step explanation:

The median is the middle. You add and divide for the mean. The mode is the one that appears the most. And the range is the difference in between.

Answer:

Mode = 7

Median = 6

Range = 7

Mean = 5.2

Write an expressions that is equivalent to 6c-2/2 +2c+11 in simplest form

Answers

Answer:

8c + 10

Step-by-step explanation:

Divide 2/2:

6c - 1 + 2c + 11

Then Collect Like Terms:

6c + 2c = 8c

-1 + 11 = 10

Final: 8c + 10

What is the slope of this graph

Answers

i believe it is 0.5 or 1/2 and negative

Jenifer bought 6 packages of hotdogs and 8 packages of rolls for $41.50. A package of rolls cost $0.85 less than a package of hotdogs. How much did each package of hotdogs cost?

Answers

Answer:

hotdogs 3.45

rolls 2.60

Step-by-step explanation:

6h + 8r = 41.5

r=h-.85

6h + 8(h-.85)=41.5

6h + 8h - 6.8 = 41.5

14h = 41.5 + 6.8

14h = 48.3

h=48.3/14

h=3.45

r=3.45-.85=2.6

w¹²/w¹⁸

helppp I don't know what to do​

Answers

the answer is w30....you have to add 12 and 18

A square board was attached to a wall. The board was divided by four squares and each square was colored either black or white. How many possible combinations of such coloring are there, if we cannot rotate the given board? PLEASE HELP QUICK! IM NEW AND I NEED ANSWERES! I HOPE BRAINLY DEOS NOT FAIL ME!

Answers

Answer:

24 combinations

Step-by-step explanation:

For this problem, you use factorials. Factorials are when you multiply every number below it except zero. So like the factorial of 3 or 3! is 3*2*1 is 6.

Factorials are used to figure out how many combinations there are of something. So for you, we have 4 different quadrants so we write that as 4! (! is the sign for factorials.)

By the way, welcome to brainly.  

please help i have 15 minutes ​

Answers

Answer:

D

Step-by-step explanation:

my math teacher just help me

i hope its right if its not sorry

Answer:

Step-by-step explanation: the 2 one

plz help me I need it

Answers

Answers:

b = 92 degrees (choice B)

c = 92 degrees (choice D)

d = 92 degrees (choice F)

================================================

Explanation:

Angles a and b are supplementary because they form a straight angle when combined. The two angles add to 180

a+b = 180

88+b = 180 ... plug in a = 88

b = 180-88 ... subtract 88 from both sides

b = 92

------------

Angles b and c are congruent because they are alternate interior angles. Alternate interior angles are congruent when dealing with parallel lines.

Since the diagonal entrance ramps are parallel, this means the corresponding angles c and d are congruent.

Since b = 92, this means c = 92 and d = 92 also.

What is the measure of the indicated angle 103° ?

Answers

Answer:

77 degrees.

Step-by-step explanation:

180-103=77

77 degrees is the measure of that temperature 180-103=77

What is the slope of this line?
Give your answer as a fraction in simplest terms.

Answers

Answer:

1/4 is the answer for this because the slope is 1 and 4 so this means it is going up at a 1/4 slope.

Answer:

The slope = 1/4

DF=55 DE=2x+8 EF=5x-2

what is X?

Answers

Answer:

x=7

Step-by-step explanation:

DF=DE+EF=2x+8+5x-2=55

7x=49

x=7

X=7 DJ gdgshhejshshshsjjsjsudd

if y= -8 when x= -2 whats x when y=32

Answers

Answer:

8

Step-by-step explanation:

Y) -8 x -4 = 32

X) -2 x -4 = 8

Answer:

X=8

hope this helps =3

sorry if im wrong

can someone please help me with number 18 !! :(

Answers

Answer: The last one.

Step-by-step explanation:

Which of the following is an equivalent representation of 5^-4 ?
1/81
1/12
1/9
1/625

Answers

Answer:

It would be 1/625

Step-by-step explanation:

5^-4=0.0016

0.0016 as a fraction is 1/625

Hope this helps! :)

Determine the slope of the table
A)2
B)5
C)-0.5
D)0.5

Answers

Answer:

C) -0.5

Step-by-step explanation:

Since the y₁ is decreasing, that automatically makes it a negative slope, and its decreasing by 0.5, so it's C!

The correct answer is C) -0.5

Math problem number 6 its in the ss

Answers

6 inches because all you have to do is divide 450 by 75
Six inches .........

seven apples cost five dollars. How many apples can I buy for $8?

Answers

Answer:

11 apples

Step-by-step explanation:

7/5=1.4

1.4x8=11.2

11.2 rounded to 11

Evaluate 2(4-1)² please

Answers

Answer:

18

Step-by-step explanation:

2×(4 - 1) ^2

2 ×3 ^2

2 ×9

18

1) 4x + 3 23

2) x/5 -2 ≤ -6 or 8x + 1 ≥ 41

Answers

Answer:

hi

Step-by-step explanation:

Plz help with graph polynomial

Answers

Answer:

(x + 1 ) is a factor

Step-by-step explanation:

Given a polynomial with roots x = a, x = b , then the corresponding factors are

(x - a) and (x - b)

From the graph

The roots are x = - 1 and x = 4 , thus factors are

(x - (- 1)) and (x - 4) , that is

(x + 1) and (x - 4)

(x + 1) is the required factor

Find the slope of the line passing through the points (-6, 2) and (-6, -1).

Answers

Answer:

3/0

Step-by-step explanation:

to find the slope use rise over run or y-y/x-x, in this case, 2-(-1)/-6-(-6)the negative and the subtraction sign cancel out resulting in something like this: 2+1/-6+6 equaling 3/0

I hope this helps have a nice day

Use the features you determined in part A to graph the line representing the equation 10x + 12y = 240.

Answers

y= -5/6+20 if that’s ur question?

Answer:

Step-by-step explanation:

2(x-4)=3x-2
What is the value of x in this equation

Answers

Answer:

2x-8=3x-2

2x-3x=-2+8

-1x=6

X=6/-1

X=-6

So, you want to move any number with a variable to one side and one without a variable to the other
But first, you must distribute the 2(x–4)
2(x–4) –> 2x–8
Next, move the numbers.
2x–8=3x–2
-8=x–2
-6=x
x is 6

Find the product of the polynomials. (2x + 6)(3x − 2)

Answers

Answer:

6x^2 + 14x -12

Step-by-step explanation:

h(t) = t + 2 + 3; Find h(6)

Answers

If you wanted a step by step:

6 = t in this case so simply plug in 6 to the equation and get 6 + 2 + 3, after adding you’ll have 11.

Answer: h(6) = 11
Answer:

h(6) = 11

Step-by-step explanation:

Hi there !

h(t) = t + 2 + 3

= t + 5

replace t = 6

h(6) = 6 + 5

= 11

Good luck !

10x + 9 – 6x = -19 what does x equal in this equasion

Answers

Answer: x = -7

.........................

Answer:

x = -7

Step-by-step explanation:

10x +9 -6x = -19

10x-6x = -19 -6

4x = -28

x = -7

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