Solve 4 - 2(-5a - 10)=30 and justify each step

Answers

Answer 1
First you would do parenthesis according to the PEMDAS(Parenthesis, Exponents, Multiply, Divide, Add, Subtract) Rule

4 -2(-5a -10) = 30

4 + 10a + 20 = 30

Now you need to add 4 and 20 because they are on the same side

24 + 10a = 30

Now subtract 24 on both sides

24 + 10a = 30

-24. -24


10a = 6

Last divide 10 from both sides


10a/10. = 6/10

a= 6/10

Last simplify (optional but recommended)

a = 3/5 or 0.6


Hope this helped :)


A = 0.6

Related Questions

Please see if you can do this problem! Thank you so so much!!

What is the equation of the line that passes through point ( -6, 5) with a slope of 4?

I chose y=4x+29 but got it wrong

Answers

That the answer I got too
are you sure you choose the correct option?
the equation should be y= 4x+29

3х – 2
= 2х – 8
4

I don’t know how to do this

Answers

Answer:

x=17.2

Step-by-step explanation:

here a picture of how i did it cause its hard to expialn

Can anyone answer this ?

(1 + 3)• (8 - 4)

Answers

Answer:

16

Step-by-step explanation:

1+3=4

8-4=4

4x4=16

Write the converse of the statement below. Then determine whether the statement is true or false. If false, give a counter example. Conditional Statement: If two angles are corresponding in parallel lines, then they are congruent.

Answers

Answer:

no

Step-by-step explanation:

One week, Sarah earned $192.00 at her job when she worked for 8 hours. If she is paid the same hourly wage, how many hours would she have to work the next week to earn $408.00?

Answers

If you divided 192 divided by 8, yoy woukd get 24. meaning, she made 24$ an hour. if you divide 24 divided by 408, you woukd get 17. she would need to work 17 hours to get paid $408.00
answer: 17

Answer:

17

Step-by-step explanation:

A banker earns a $75,000 annual salary, a 2.35% commission on any approved loans for the bank’s business customers, and a fee of $3.75 for each application processed. If the banker has a total of $2.8 million in approved business loans and processes 2,750 applications this year, what are the banker’s earnings rounded to the nearest dollar?

Answers

Answer:

Amount earned = $151,113

Step-by-step explanation:

Here, we are interested in calculating the banker’s earnings rounded to the nearest dollar;

We proceed as follows; we have the following;

1. Annual salary of $75,000

2. 2.35% on approved loans.

Approved loans = 2.8 million

Commission = 2.35/100 * 2.8 million = $65,800

3. $3.75 for each processed loan application

Total = 2750

Amount = 3.75 * 2750 = $10,312.50

Total amount earned is thus;

$75,000 + $65,800 + $10,312.50 = 151,112.5 = 151,113 to the nearest dollar

Answer:

do r best the answer is i think is $151,113

Step-by-step explanation:

PLS HELP WILL GIVE BRAINLIEST

Answers

I think it would be 30? I’m not sure about that one.. sorry

Hewp me pwease :( *insert puppy dog eyes*
11 + (−7)^2−9

Answers

Answer:

51

Step-by-step explanation:

11+(-7)^2-9 would be

11+49-9    (49 because 7^-2 = 49)

60-9 = 11

Answer:

51

Step-by-step explanation:

According to PEMDAS, the first step would be to take care of the exponents. -7 times -7 is positive 49, so the equation would look like this:

11+49-9    From there, just add and subtract as normal!

60-9

51

Hope this helps!

A.

B.

C.

D.

look at the picture ^^

Answers

Answer:

C, he did not divide properly .

Step-by-step explanation:

explain why the slope of line a is 2/6​

Answers

Answer:

Step-by-step explanation:

Hi so 2/3

where slope means rise over run

so  it means the first point or you slope(x1 y1)

and you take that point, go up 2 on Y, and move 6 unit to the left(x)

Which transformation shows a translation of 3 units to the right ?
A) A
B) B
C) C
D) D

Answers

I think it would be letter C
The answer is B. because you can see that it went to the right three times.

Terrance picked 115.2 pounds of apples on Monday.
He picked 97.6 pounds of apples on Tuesday. How
many pounds of apples did Terrance pick altogether?

Answers

Answer:

212.8

Step-by-step explanation:

add the decimals

(2x+4)/3=6

x=

what does x = i need help quick

Answers

Answer:

15

Step-by-step explanation:

x=7

multiply 6 by 3 to get it out of the left side =18
subtract 4 from both sides
divide 2 by both sides

Alex can run 9 miles in 3 minutes x I need the equation and constant of porportionality

Answers

Answer:

k=9/3= 3

Step-by-step explanation:

Mark me the brainliest please

Can someone write 3^x − 4 = 6 in its logarithmic form?

Answers

Answer:

Step-by-step explanation:

get all x terms on one side, giving you 3^x=10

Then, the simple rule is y=b^x becomes x=logb(base)y

b is 3, x is x, and y is 10

logbase3(10)=x

Jenny is organising a barbecue. There are 30 bread rolls in a pack. There are 16 sausages in a pack. She needs exactly the same number of bread rolls as sausages. What is the smallest number of each pack she must buy?

2. Tom, Sam and Matt are doing a show by counting drum beats .They decided to donate the collecting money for the poor children for their studies. Tom hits a snare drum every 2 beats. Sam hits a kettle drum every 5 beats. Matt hits a bass drum every 8 beats. Tom, Sam and Matt start by hitting their drums at the same time. How many beats is it before Tom, Sam and Matt next hit their drums at the same time? What value you can see in their act

Answers

Answer:

She need to buy 8 packs of rolls and 15 packs of sausages! The LCM is 240 so you would need to find out how many packs or rolls and how many packs of sausages equal 240!

Step-by-step explanation:

-2.6+(-3.5)
Add. Write in simplest form, if necessary.

Answers

Answer:

−  10 /61

​or  

=−6.10000

Step-by-step explanation:

what is x and y shown in the photo above?

Answers

Answer:

[tex]\huge\boxed{x = 11,\ y = 3}}[/tex]

Step-by-step explanation:

In order to find the value of x and y in this, we have to note a couple of angle relationships.

We know that angles [tex]13x-19[/tex] and [tex]9x+25[/tex] are the same because they are corresponding angles. This means that when a line intersects two parallel lines, the angles formed are congruent to the second line.

This means both expressions for the line will be equal to each other:

[tex]13x-19 = 9x+25[/tex]

We can now solve for x.

Add 19 to both sides:

[tex]13x = 9x+44[/tex]

Subtract 9x from both sides:

[tex]4x=44[/tex]

Divide both sides by 4:

[tex]x=11[/tex]

Now that we know that x = 11, we can use another angle relationship to find y.

We know that [tex]13x-19[/tex] and [tex]17y+5[/tex] are supplementary angles. This means their angle measurements add up to 180°.

Since we know the value of x, we can find the measure of the angle [tex]13x-19[/tex].

[tex]13(11) -19\\\\143-19\\\\124[/tex]

So the [tex]13x-19[/tex] angle is equal to 124 degrees. Since this and [tex]17y+5[/tex] are supplementary, that means [tex]17y+5[/tex] must be equal to [tex]180-124=56[/tex] degrees.

[tex]17y+5=56[/tex]

Subtract 5 from both sides:

[tex]17y=51[/tex]

Divide both sides by 17:

[tex]y=3[/tex]

So, x = 11 and y = 3.

Hope this helped!

Answer:

Y=3

X=11

Step-by-step explanation:

9x + 25 is = to 13x - 19 so you would do exactly that.

9x + 25 = 13x -19

-9x -9x

25 = 4x -19

+19 +19

44 = 4x

4 4

11 = x

9*11+25= 124

And 124 is not equal to 17y+5 so the equation would be

124 + 17y +5 = 180

124 + 5 = 130

129 + 17y = 180

-129 -129

17y = 51

17 17

Y= 3


Six identical circles fit inside the rectangle as shown below. If the rectangle has a width of 15
units and a height of 10 units, what is the radius of each circle?

Answers

Answer:

The radius of each circle is 2.5 units

Step-by-step explanation:

Width of the rectangle = 15 units

Height of the rectangle = 10 units

6 identical circles fit inside the rectangle,

Two circles fit along the height of the rectangle.

Therefore, diameter of both the circles = Height of the rectangle

2d = 10

d = 5

Since, radius of a circle = [tex]\frac{\text{Diameter}}{2}[/tex]

                                       = [tex]\frac{5}{2}[/tex]

                                       = 25. units

Therefore, Option (4) will be the correct option.

Learn more,

https://brainly.com/question/20188113

5) Solve: 2.4p + 6 = 48​

Answers

Answer:

p = 17.5

Step-by-step explanation:

This is the answer because:

1) First, we have to isolate x

2) To isolate x, first -6 from +6 and 48

+6 - 6 = 0

48 - 6 = 42

Equation: 2.4p = 42

3) Now we are left with 2.4p = 42

4) Next, divide 2.4 from 2.4 and 42

2.4/2.4 = 0

42/2.4 = 17.5

5) We are left with

p = 17.5

Therefore, the answer is p = 17.5

Hope this helps!

The sum of three numbers is 26. The second number is twice the first and the third number is 6 more than the second.
Find the numbers.

Answers

Answer:

4,8,14

Step-by-step explanation:

The three numbers are x = 4, y = 8 and z = 14 respectively.

What is Equation Modelling?

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given is the sum of three numbers as 26. The second number is twice the first and the third number is 6 more than the second.

Assume that the first number is x.

Then, the second number will be equal to 2x

The third number would be equal to (2x + 6)

Now, theirs sum is equal to 26. Therefore, we can write -

x + 2x + 2x + 6 = 26

5x + 6 = 26

5x = 26 - 6

5x = 20

x = 4

Then,

the second number (y) would be equal to (2 x 4) = 8

the third number (z) would be equal to (2 x 4 + 6) = 14

Therefore, the three numbers are x = 4, y = 8 and z = 14 respectively.

To solve more questions on equation modelling, visit the link below-

https://brainly.com/question/12366626

#SPJ2

Write the equation of the line described that passes through (-6,8), perpendicular to y = 5x - 15
PLS ANSWER THIS PLSSSSSSSS.

Answers

Answer:

[tex]y=-\frac{1}{5}x+9\frac{1}{5}[/tex]

Step-by-step explanation:

[tex]y-y_{1} =m(x-x_{1} )\\y-8=-\frac{1}{5} (x+6)\\y-8=-\frac{1}{5}x-\frac{6}{5}\\y=-\frac{1}{5}x+9\frac{1}{5}[/tex]

DUDE IM GETTING MAD BECAUSE I KEEP FORGETTING THE IMAGE AND OMG PLEASE ANSWER IM BEGGING PLS

Answers

Let

x = number of tickets

y = cost

For each row, divide the cost over the number of tickets

Row one:  y/x = 3/2 = 1.5

Row two: y/x = 6/4 = 1.5

Row three: y/x = 9/6 = 1.5

Row four: y/x = 12/8 = 1.5

Row five: y/x = 15/10 = 1.5

The constant of proportionality is 1.5

This means each ticket costs $1.50

how much is 3375.9 missing to reach 6567.66 , in scientific notation​

Answers

Answer: 3.19176 * 10^3

Step-by-step explanation:

Step 1: Subtract 3,375.9 from 6,567.66 = 3191.76

Step 2: Convert 3191.76 to scientific notation

Note: The purpose of scientific notation is to make big numbers into small numbers by moving the decimal point and then showing how many decimal places you moved by using powers of ten.

Step 3: Move the decimal 3 places to the left, and multiply by 10^3.

3.19176 * 10^3

This is a one step equation

Answers

Answer:

x = -23

Step-by-step explanation:

1st we can isolate x to get it by its self. so we have to subtract 8 on both sides. so now we get

x = -23

Brainiest would be appreciated

High Hopes^^

Barry-

During basketball practice, Levon attempted 40 free throws every 5 minutes. How many free throws did Levon attempt in 12 minutes.

Answers

Answer:

Levon attempted

96 throws in 12

minutes.

Step-by-step explanation:

1 min= 8 throws

8x12=96 or

10 min= 80 throws  2 min=16 throws

80+16=96

PLEASE HELP, ITS SIMPLE WILL GIVE BRAINLIEST

Answers

Answer:

What part do u need help with?

Step-by-step explanation: kaknckndnkcksnjkjs

Sally has seventy dollars to spend on eight books. After buying them she had thirteen dollars. How much did each book cost?

Answers

Answer:

7.13 each

Step-by-step explanation:

70 - 13 = 57. Divide 57/8 and get your answer

(7.125 rounded is 7.13)

5. Determine whether each of the following are functions or not. Explain how you know.​

Answers

1st one is because it passes the line test and it doesn’t overlap, 2nd isn’t because it doesn’t pass the line test and overlaps, 3rd isn’t because it doesn’t pass the line test and overlaps

f(x) = x2 – 8x+7
Find an equation for axis of symmetry

Answers

F(x)=x2-8x+7
0=2x-8x+7
0=-6x+7
6x=7
X=7/6
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