Combine like terms, showing one step per line. Justify each step using a rule of algebra or "Combining Like Terms." You may need to add extra rows. Expression Justification 7x + 3 + 9x + 15 Given 7x

Answers

Answer 1

Answer:

By combining like terms, we have 16x + 18

Step-by-step explanation:

Here, we want to combine like terms

we simply bring terms that are similar together in this case

Thus, we have

7x + 9x + 3 + 15

16x + 18


Related Questions

LCM of 9 18 and 99 is :

Answers

Step-by-step explanation:

[tex]\begin{array}{c|ccc}\cline {2-4} 2 & 9 ,& 18 ,& 99 \\ \cline {2-4} 3 & 9 & ,9 & ,11 \\ \cline {2-4} 3 & 3 ,& 3, & 11 \\ & 1, & 1 , & 11 \end {array}[/tex]

LCM=2×3×3×11=198

in need help wihe lateral asn and total surface area

Answers

Just look it up on safari for help

Distributive property is a property of equality?
- True
-False

Answers

Answer:

Its True

Step-by-step explanation:

!!HELP!! What is the rule for finding the distance of a point when the points are in the different Quadrants?

Answers

Answer:

You can find the distance between two points in different quadrants having the same x-coordinates by finding the sum of the absolute values of the y-coordinates.

Step-by-step explanation:

An office building has 66000 of net income and sold for 550000. What is the rate of return

Answers

Answer:

The rate of return will be: 12%

Step-by-step explanation:

Given

Net income = 66000

As the building was sold for 550000

Market value = 550,000

Return can be calculated by dividing the market value by the net income using the formula

Return = Net income / Market value

           = 66000 / 550,000

           = 0.12  which is 12%

Therefore, the rate of return will be: 12%

can someone help me with this?

Answers

Answer:

give more information

Step-by-step explanation:

sorry

The square root of -98 would be 9.89949494, but to actually get 98 the most accurate answer would have to be 9.8995. Which would equal 98.00010025

In a graph the constant of proportionality is the y=____when x= ____

Answers

Answer:

The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.

When evaluating (6 x + 9) squared minus 5 for x = 1, the given value of 1 is substituted for what part of the expression?
the exponent
the constant
the variable
any numerical value

Answers

Answer:

the variable

Step-by-step explanation:

i got it right on edge :)

Answer:

the variable

Step-by-step explanation:

Edg 2021

why was mom now saying that Augie did not have to go to school​

Answers

Answer:

Is there suppose to be a picture?

Step-by-step explanation:

Answer:

Because she liked Augle more than the other child

Step-by-step explanation:

She didn't want him to go to school so that she could spend the day with her favorite child

Explain why the rearranged expression is easier to work with

Answers

where is the expression?

Im only have 10 minutes please. Is math​

Answers

Answer: A
Explanation do Pythagorean theorem and find the third side. Then do adjacent/hypotenuse.
Darling, it’s A. Have noice night/ day

Which equation has the same solution as 4-2(x-5)=x-19
A. 2(x+5)=-8
B. 3(x-3)=9
C. x+2=2x-3
D. 3x-4=2x+7

Answers

So x=11
So 3/11=33-4=29 =2/11=22+7=29

Solve for u, where u is a real number. Square root of u+6=9 If there is more than one solution, separate them with commas. If there is no solution, click on "No solution".

Answers

Answer:

The answer is 3+6=9. u=3 .

What is the value of tan c

Answers

Answer:

In trigonometry, the tangent of an angle in a right-angled triangle is equal to the ratio of opposite side and the adjacent side of the angle. Tan 30 degrees is also represented by tan π/6 in terms of radians. The exact value of tan 30° is 0.57735.

Cleo and her family fished for 3 days and caught 100 fish between them. They caught 12 fish on day 2 and 16 fish on day 3. How many fish did they catch on the first day.

Which equation is correct.
12x + 16 = 100
12x + 16 = 100

x + 12 + 16 = 100
x + 12 + 16 = 100

16x + 12 = 100

Answers

Answer:

x + 12 + 16 = 100

72 fishes

Step-by-step explanation:

Given parameters:

Number of days fished  = 3days

Number of fishes caught = 100 fishes

Number of fish caught on day 2 = 12fishes

Number of fish caught on day 3  = 16fishes

Unknown:

Number of fish caught on the first day = ?

Solution:

Let the number of fishes caught on the first day  = x;

Total number of fishes caught  = No of fish on day 1 + No of fish on day 2 + number of fish on day 3

Insert the parameters and solve;

    100  = x + 12 + 16

     x  = 100 - 28  = 72fishes

In a certain​ fraction, the denominator is less 7 than the numerator. If 3 is added to both the numerator and​ denominator, the resulting fraction is equal to 15/8
. Find the original fraction.

Answers

Answer:

original fraction =12/5

Step-by-step explanation:

let x = numerator

therefore

   x+3/x-7+3 =15/8

    x+3/x-4 =15/8

      8(x+3)=15(x-4)

      8x+24=15x-60

       84=7x

        84/7=x

        12=x

therefore original fraction = 12/5

What is the nearest hundred for 0.8 divided by 0.6?

Answers

Answer:

  _

1.3

Step-by-step explanation:

the line is above the three because it repeats

Suppose a box contains 10 coins, where three of them are type-A and seven of them are type-B. The probability of head is 0.4 if we toss a type-A coin and 0.6 for a type-B coin. One person chooses one coin at random and tosses it three times. What is the probability that this coin is type-A if the outcome is two heads out of three tosses?

Answers

Answer:

0.222

Step-by-step explanation:

Given  that:

For Type A coins = 3

The probability of head in a type A coin i.e. (p) = 0.4

Then, the probability of getting a tail (q) = 1 - p = 1 - 0.4 = 0.6

For Type B coins = 7

The probability of head in a type B coin i.e. (p) = 0.6

Then, the probability of getting a tail (q) = 1 - p = 1 - 0.6 = 0.4

One person who tosses a coin three times get a probability of obtaining a head twice.

Using, the formula:

=[tex]^nC_r \times p^r \times q^{n-r}[/tex]

For Type A coin;

The probability of getting two heads in three tosses is:

[tex]= ^3C_2 \times 0.4^2 \times 0.6^{1}[/tex]

[tex]=\dfrac{3!}{2!(3-2)!} \times 0.4^2 \times 0.6^1[/tex]

= 0.288

For Type B coin;

The probability of getting two heads in three tosses is:

[tex]= ^3C_2 \times 0.6^2 \times 0.4^{1}[/tex]

[tex]=\dfrac{3!}{2!(3-2)!} \times 0.6^2 \times 0.4^1[/tex]

= 0.432

Since we have two heads out of three tosses, the probability that the coin is type A is = (P) of choosing coin A × (P) of obtaining two heads from three tosses) / total probability of getting two heads from three tosses.

However;

(P) of choosing coin A = 3/10 = 0.3

(P) of choosing coin B = 7/10 = 0.7

Given that, we obtain two head from three tosses, the (P) that the coin type is A is:

[tex]= \dfrac{(0.3 \times 0.288)}{ (0.3 \times 0.288 + 0.7 \times 0.432)}[/tex]

[tex]= \dfrac{(0.0864)}{ (0.0864 + 0.3024)}[/tex]

= 0.222

30% of 52 equals what. I need help please and thank you

Answers

Answer:

15.6

Step-by-step explanation:

Give brainliest if correct pls

Answer:

15.6

Step-by-step explanation:

Which expression would be easier to simplify if you used the associative property to change the grouping?

A. 85 + (120 + 80)

B. [-40 + (60)] + 52

C. (2 + 3/7) + 4/7

D. 4 + (1.2 + (-0.2))

Answers

Answer:

C

Step-by-step explanation:

In A and B, the numbers involved in expressions are integers.

Hence, they can be easily added or subtracted.

In C, the numbers involved in expression are fractions which are not grouped together.

They can be added but by using associative property, it becomes much more easier.

That is, grouping fractions.

Answer:C

Step-by-step explanation:

1.5.3

6x+7

To solve for the lengths of the right triangle sides, which equation is correct?

A. x² = (4x - 1)² + (6x + 7)?

B. x2 +(6x + 7)2 = (4x - 1)2

c. x² = (4x - 1)² – (6x + 772

D.x² + (4x - 1)2 = (6x + 7)?

4x-1

To solve for the lengths of the right triangle sides, equation is correct.

(Type A, B, C, or D.)

Answers

Answer:

A. [tex]x^2 = (4x - 1)^2 + (6x + 7)^2[/tex]

Step-by-step explanation:

The question seems to be incomplete. However, we'll make the following assumption.

[tex]Opposite = 6x + 7[/tex]

[tex]Adjacent = 4x - 1[/tex]

[tex]Hypothenuse = x[/tex]

Pythagoras theorem states that:

[tex]Hypothenuse^2 = Opposite^2 + Adjacent^2[/tex]

Substitute values for Hypothenuse, Opposite and Adjacent.

This gives

[tex]x^2 = (6x + 7)^2 + (4x - 1)^2[/tex]

or

[tex]x^2 = (4x - 1)^2 + (6x + 7)^2[/tex]

From the list of given options.

A answers the question

A bike path is 3 miles long. there are distance markers every path one fourth mile to the end of the path. which number line correctly models this situation and the total number of distance markers?

Answers

Given :

A bike path is 3 miles long. there are distance markers every path one fourth mile to the end of the path.

To Find :

Which number line correctly models this situation and the total number of distance markers.

Solution :

It is given that their are markers every 1/4 part of mile.

So, their are 4 markers per mile.

Numbers of markers in 3 miles long path is :

[tex]n = 3\times 4\\\\n = 12[/tex]

Therefore, the total number of distance markers in 3 mile path is 12.

Hence, this is the required solution.

Are 9.91 and 9.0 equivalent decimals?

Answers

No they are not, 9.91 > 9.0

Answer:

no

Step-by-step explanation:

there is a difference between these two integers as 9.91 is 0.01 more then 9.0,

they are therefor not equivalent

round 23.2736 to the nearest thousandth​

Answers

Answer:

23.274

Step-by-step explanation:

Here, rounding to the nearest thousandth means rounding to the nearest 0.001.

Hence, due to the digit being rounded having a number larger than 5 after it (0.2736), it is rounded up.

Hope this helped!

The required round-off of the number 23.2736 is 23.274.


To determine the round of the number 23.2736 to the nearest thousandth.

What is rounding of values?

The rounding of values is superseding a number with an inexact value that has a more ephemeral, more uncomplicated, or more direct representation.

Here,
The given number 23.2736,
The number next to the thousandth place is 6 which is greater than 5 than the number 6 can be pushed to 10 and the number 1 will be added to the number in the thousandth place which is 3.
So the required round-off would be given as 23.234.

Thus, the required round-off of the number 23.2736 is 23.274.

Learn more about round the decimal here;

brainly.com/question/867784

#SPJ2

a rectangular parking lot has length that is greater than the width the area of the parking lot is 160 square yards find the length and the width use formula area=length*width the parking lot length

Answers

let 'w' represent the width of the parking lot, then 'w+6' represents its length



area = width * length



160 = w * (w+6)

solving for 'w' we have a positive value of w=10



10+6=16



the width of the parking lot is 10 yards, the length of the parking lot is 16 yards

PLEASE ANSWER FAST ITS UNIT TEST
The graph of the equation y = ax2, where a is >0, is shown below


If a is multiplied by -3, the graph of the new equation is

A.
wider and opens downward

B.
wider and opens upward

C.
narrower and opens downward

D.
narrower and opens upward

Answers

Answer:

a or c

Step-by-step explanation:

Describe the sampling distribution of Phat. Assume the size of the Population is 25,000. N = 500 P = 0.4 Determine the Mean of the sampling distribution of Phat. Determine the standard deviation of the sampling distribution of Phat.

Answers

Answer:

0.022

Step-by-step explanation:

Given that :

Population size = 25000

n = 500 ; p = 0.4

Size of random sample (n) = 500

5% of population size : 0.05 * 25000 = 1250

Distribution is normally distributed since n < 5% of population size

Hence, the mean of the distribution = p = 0.4

Standard deviation = √((pq) /n)

q = 1 - p ; q = 1 - 0. 4 = 0.6

Standard deviation = √((0.4 * 0.6) /500)

Standard deviation = 0.0219089

= 0.022

write four equivalent fraction of -3/7​

Answers

Answer:

-6/14, -12/28,-24/56, and -48/112.

Hope this helps plz hit the crown and friend me :D

Answer:

6/14, 9/21, 12/28, 15/35

it takes two pizzas to feed five people how much pizza does it take to feed 45 people

Answers

Answer:

18 pizzas

Step-by-step explanation:

5x9=45

2x9=18

Welcome to Brainly :)

Answer:

18

Step-by-step explanation:

if it takes 2 pizzas to feed 5 people you 5 by 9 to get 45. You do the same with the 2 and 2 * 9 = 18

If it takes Andre 4 minutes to swim five laps how much will it take him to swim 22 laps at the same speed

Answers

Answer:

17.6 minutes

Step-by-step explanation:

[tex]\frac{4}{5} = \frac{x}{22}[/tex]

[tex]5x=22[/tex]

[tex]x=\frac{22}{5}[/tex]

[tex]4(\frac{22}{5} ) = \frac{88}{5} = 17.6[/tex]

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