Mathematics College

5 times the difference of a number and 7​

Answers

Answer 1

Answer:

We conclude that '5 times the difference of a number and 7​' can be written algebraically such as: 5(x-7)

Step-by-step explanation:

Let 'x' be the number

The difference of a number and 7 is determined by subtracting 7 from the number.

so

Difference of a number and 7​ will be: x - 7

Given that 5 times the difference of a number and 7​.

'Five time' mean the expression would have to be multiplied by 5.

so the expression becomes

5(x-7)

Therefore, we conclude that '5 times the difference of a number and 7​' can be written algebraically such as: 5(x-7)

Related Questions

Need help plz need to solve for x.
1) 2x-7= -2x+1
2) 2(x-7)=6-2x

Answers

1) x=2
2) x=5

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

Answer:

1( ×=2

2( x=5

ekekjejew

PLZ HELP! WILL GIVE BRAINLIEST!! PLZ SOLVE QUICK!!

Find the value of x by filling in the blanks in the provided statement - reason solution.

I NEED THE WHOLE STATEMENT REASON CHART FILLED OUT!! THANK YOU SO MUCH IF YOU HELP!

Answers

Answer:

30

Step-by-step explanation:

A 6-ounce can of Frozen orange juice costs $1.02. Give the unit price in cents per ounce

Answers

The unit price in cents per ounce will be 17 cents / ounce.

The cost of the 6 ounce frozen orange juice is given as:

Cost = $ 1.02

We know that:

$ 1 = 100 cents.

So, by using multiplication, we get that:

$ 1.02 = 1.02 × 100 cents

$ 1.02 = 102 cents.

Now, Number of ounces = 6 ounces

Unit price in cents per ounce = 102 cents / 6 ounce

Unit price in cents per ounce = 51 cents / 3 ounce

Unit price in cents per ounce = 17 cents / ounce

Therefore, the unit price in cents per ounce will be 17 cents / ounce.

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what is the sum

56+90=_____

Answers

Answer:

146

Step-by-step explanation:

the answer is 146!!!!!!

10 of 14
A car travels 48 km in 33 minutes.
What is its average speed in km/h?
Give your answer rounded to 1 decimal place.

Answers

Answer:

why in kilometers? 87.3 km/h

What is the equation of the line written in slope intercept form

Answers

Answer:

Where is the graph, once you upload it, I will change the answer

Step-by-step explanation:

find the measure of the line segment TV​

Answers

9514 1404 393

Answer:

  18

Step-by-step explanation:

When chords cross, the product of the lengths of the pieces is the same for each chord:

  EU·ES = ET·EV

  8·9 = (12x)(6x)

  72 = 72x^2

  x^2 = 1   ⇒   x = 1

Then the length of interest is ...

  TV = ET +EV = 12·1 +6·1

  TV = 18

my question is down there

Answers

I don’t really see the question ?

It costs Guido $0.20 per minute to forward voicemail messages as texts to his cell phone. He already spent $4 in forwarding messages this month. His mom has spent $2 forwarding messages. It costs her $0.40 per minute so she can call long distance. Guido’s mom said they have to spend the same amount. How many minutes can he talk?

Answers

Answer:

10 Minutes

Step-by-step explanation:

To talk the same amount of time he would have to spend $2. So $0.20 per minute would mean that for 5 minutes it is $1, so he can have 10 minutes

brittany is listening to a song on the internet. the song is streaming at a rate of 128 kilobits per second. There are 8 kilobits in 1 kilobyte. What is the streaming rate in kilobytes per second?

Answers

Step-by-step explanation:

16 because 128 divided by 8 is 16

15r-15s=
can you help

Answers

Answer:

i dlnt know 15 I think not sure

Answer: 0 i guess i dont know

Step-by-step explanation:

With individual lines at its various windows, a post office finds that the standard deviation for normally distributed waiting times for customers on Friday afternoon is 7.2 minutes. To test this claim, the post office experiments with a single, main waiting line and finds that for a random sample of 25 customers, the waiting times for customers have a standard deviation of 3.5 minutes.With a significance level of 5 percent, test the claim that a single line causes lower variation among waiting times (shorter waiting times) for customers. Degrees of freedom test statistic pvalue accept or reject

Answers

Answer:

We reject H₀ we found that at 5% significance level the single file causes shorther waiting times

Step-by-step explanation:

We will develop a chi-square test since it is a standard deviation test.

Conditions for chi-square test

1.-Population follows a normal distribution

2.-We have a random sample

Therefore

Test Hypothesis

Null hypothesis                           H₀            σ   =  7,2

Alternative hypothesis               Hₐ            σ   <  7,2

So it is a one tailed-test to the left

Sample size      n  = 25

Then df  =  25 - 1      df  = 24

Significance level  α = 5%    α = 0,05

With   df = 24  and   α = 0,05  we find

Χ₀ = 36,415  

Computing  X(s)

X(s)  = ( n - 1 ) * σ² / (7,2)²

X(s)  =  24* (3,5)² / 51,84

X(s)  =  294/51,84

X(s)  =  5,67

Comparing     Χ₀     and      Χ(s)

X(s) <   Χ₀

So X(s) is in the rejection region and we reject H₀

83, 15, 50, 28, 52, 96 - What is the mean? What is the mode? What is the median?

Answers

Answer:

Mean: 54

Mode: There is none

Median: (50+52)/2 = 51

Step-by-step explanation:

Hope this helps!!! :D

A certain bacteria can divide every hour. Which of the following equations represents the number of cells, N, that is present after t hours?

A

N(t)=2t


B

N(t)=2/t


C

N(t)=2t


D

N(t)=t2

Answers

Answer:

N(t) = N0/2^t

Step-by-step explanation:

Given that:

Number of cells present after t hours = N

Let initial number of cells = N0

Using the exponential decay relation:

N(t) = N0(1/2)^t

N(t) = N0/2^t

Hence, the number of cells N present after t hours is N(t) = N0/2^t.

How can you determine the domain of a sine function?

Answers

Answer:

Step-by-step explanation:

Note that the domain of the function y=sin(x) ) is all real numbers (sine is defined for any angle measure), the range is −1≤y≤1 . The graph of the cosine function looks like this: The domain of the function y=cos(x) is all real numbers (cosine is defined for any angle measure), the range is −1≤y≤1 .

PLEASEE HELP 51 POINTS PLEASEE

Answers

Answer:

Part A is $21 and part B is $30.21

Help with this problem

Answers

Answer:

18

Step-by-step explanation:

side length of triangle RST is 4 ✓ 3, 3 ✓ 3

So, area of triangle RST = 1/2 × 4✓ 3 × 3✓ 3 =18

sorry can u delete this my answer is wrong lol

What postulate/theorem can be used to prove the following triangles congruent?

Answers

Answer:

SAS

Step-by-step explanation:

2 sides and 1 angle are congurent

Answer:

The S.A.S rule can be used to prove the following triangles congruent.

Step-by-step explanation:

The S.A.S rule is when 2 sides and the angle in that triangle are equal to the 2  sides and angle of the other triangle, then u can considere that triangle congruent.

of the 8 friends sitting around the table at lunch, 6 brought their lunch from home. Which
grid represents the percent of the friends who brought their lunch from home?

Answers

You didn't provide any grid, but I can tell you how to turn fractions into percentages: just build the following proportion

[tex]6\div 8=x\div 100[/tex]

and solve for [tex]x[/tex]:

[tex]x=\dfrac{600}{8}=75[/tex]

So, 75% of the friends brought their lunch from home.

factor out the coefficient of the variable : 2/3j - 2/9

Answers

Answer:

j3a3

Step-by-step explanation:

1) There are 56 people at a party. Each table has 8 seats. How many tables are
needed so all of the people have a seat?
56 +
= 8
6
54

Answers

Answer:

56 / 8

Step-by-step explanation:

Chris bought a pizza that was cut into 8 slices. He saw olives on 2 of the slices. If he chooses a slice at random, what is the probability that he gets a slice without olives?

Answers

2/8

If you are thinkinking logically, however, it's 50/50 since it's either you get them or not

Answer:he has a 75% chance of getting a piece without olives

Step-by-step explanation:

-14 + 9x in standard form

Answers

Answer:

9x-14

Step-by-step explanation:

the format of the slope intercept formula mx+b

9x-14 in standard form. You’re welcome.

I have no idea how to solve this, please help with the answer

Answers

SAS similarity. the angle degree is the same. if you multiply 14 and 8 by a factor of 7 you get 98 and 56 which means the triangle have the same ratio making them similar. because of this ratio it makes the side similar therefore being a SAS similarity because the angle is between the sides.

Omg I don’t get it look at the picture:(

Answers

Answer:

Cevap B

Step-by-step explanation:

fcxssazhgfxghfhdhddd

Evaluate the expression when y = 4 y/2-8

Answers

Answer:

-6

Step-by-step explanation:

Using PEMDAS , division comes first.  

4 ÷ 2 - 8

= 2 - 8

= -6

Given sin theta and angle θ is in Quadrant III, what is the exact value of cosθ in simplest form? Simplify all radicals if needed.

Answers

Answer:

Unfortunately, you have to give the exact value of sin theta in order to solve this problem. Therefore, this problem, at least for the meantime, is unsolvable. Please rectify this! Thank you!

Answer:

sin theta in Quadrant III,

sin theta =√(1-cos²theta)

Find the midpoint of the segment with the following endpoints.

(4,7) and (10,3)

Answers

Answer:

7, 5

Step-by-step explanation:

Answer:

I hope this may helps you

What is the least common denominator of 1/2,2/3 and 3/8 OA) 48 OB) 24 O C) 16 OD) 12 plz help me ​

Answers

Answer:

24

Step-by-step explanation:

The required least common denominator (LCD) of 1/2, 2/3, and 3/8 is 24.

What is the least common denominator?

The least common denominator has a defined factor that is least common among the factors of the denominator is called the least common denominator.

Here,
Rewrite each fraction with the least common denominator (LCD) of 24 by multiplying both the numerator and denominator by the appropriate factor:

1/2 = (1/2) * (12/12) = 12/24

2/3 = (2/3) * (8/8) = 16/24

3/8 = (3/8) * (3/3) = 9/24

Check that the fractions have the same denominator:

12/24, 16/24, and 9/24

Therefore, the least common denominator (LCD) of 1/2, 2/3, and 3/8 is 24.

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How can you express (15 + 30) as a multiple of a sum of whole numbers with no common factor?

A.
2 × (7.5 + 15)
B.
3 × (5 + 10)
C.
5 × (3 + 6)
D.
15 × (1 + 2)

Answers

Answer:b because the equation is right.

Step-by-step explanation:

Step-by-step explanation:

D.

15 × (1 + 2) is you're answer

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