If you do not see a number next to a variable, what is it understood to be?

Answers

Answer 1
A variable with no number is considered 1. This one is invisible to the equation but it is still used to solve problems

Related Questions

write an inequality to represent the sentence. a number, x, is atleast 10 and at most 20​

Answers

Step-by-step explanation:

10<=x<=20

10 less than or equal to x , less than or equal to 20

Five years from now peter age will be two plus three times his current age. Identify the equation representing this situation

Answers

Answer: 5=3x+2

Step-by-step explanation:

5=3x+2

5 years from now, he will be 3x+2 his current age

On three different days at his job, Stephen earned $41, $59, and $60. He needs to earn $150 to buy a couch for his living room. If he buys the couch, how much money will he have left over? After he buys the couch, Stephen will have $ left over.​

Answers

Answer:

He saves $10

Step-by-step explanation:

Add $41 $59 and $60 to get 160

Then subtract 160-150 to get $10

Find the value of x.

Answers

Answer:plug in all the numbers and equal them to 180. The rest is just simple math

Step-by-step explanation:

How do I solve this can someone please help me as soon as possible thank you so much

Answers

It would just be the two functions added together:

4x^2 - 15 + (-4x - 7)
This would simplify to
4x^2 - 4x - 22

Mary can type 44 words in 2 mins. What would be equivalent to that
rate

Answers

Answer (there are different answers, but this is one of them):

22 words in 1 minute

Step-by-step explanation:

44 ÷ 2 = 222 ÷ 2 = 1Put them together: 22 words in 1 minute

I hope this helps!

what is the equivalent decimal to 3/16

Answers

Answer:

0.1875 :)

Step-by-step explanation:

Answer:

3/16 = 0.1875

Step-by-step explanation:

5x-5?????????????????????

Answers

Answer:

-25

Step-by-step explanation:

five times five is twenty five and there's a minus sign so it becomes -25

3x3 divided by 3+3 (4x4)

Answers

Answer:

51

Step-by-step explanation:

hope it help yw

the original price of a backpack is $20. The sale price is 30% off the original price. What is the sale price of the backpack?

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Answer: $14

Step-by-step explanation: You have to multiply 20 by .3 (30%) which is 6. Now you subtract 6 from 20 and get 14.

Percent formula
Part/Whole=%/100
The original price is 20- that’s the whole.
We want the reduced price- the part.
%=30.
100= just a number.
X/20=30/100
Solve for x
X=6.

OR
You could simply do .3 x 20 which gives 6

3x + 4y = –23
X=3y+1

Answers

3x+4y=−23.........(1)
x=3y+1 .........(2)
Putting (2) in (1)
3(3y + 1) + 4y = -23
9y + 3 + 4y = -23
9y + 4y = -23 - 3
13y = -26
y = -26/13
y = -2
Putting y into (2)
x=3y+1
x = 3(-2) + 1
x = -6 + 1
x = -5

in mr siegals class 15% of his students are in the scrapbooking club and 45% are in cookong club.

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What is the question?

can anyone help me with this?

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I cant see the pic and need more information
The pic is grey dear!

3^2 x 5 ÷ 3
1. 16
2. 15
3. 20
4. 12

Answers

Answer:

Step-by-step explanation:

9 x 5 ÷ 3

= 45 ÷ 3

= 15

Answer:

2. 15

Step-by-step explanation:

Find three consecutive odd integers such that the sum of the second and third is five less than three times the first.

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11, 13 and 15. See attached for explanation

(2 1/3 x+7)−( 2/3 x+5)

Answers

Answer:

=19/3x+2

Step-by-step explanation:

Priya filled 5 jars, using a total of 7 1/2 of strawberry jam. How many cups of jam are in each jar.

Answers

Answer:

1.5 or 1  1/2

Step-by-step explanation:

7  1/2 divided by 5 would equal to 1.5 or 1  1/2

The length of a side of a square is 3x plus 4 ft. If its a perimeter is 100 ft, what is the value of x?

Answers

Answer:

x=7

Step-by-step explanation:

4 (3x+4)= 100 ft (Perimeter = sum of all 4 sides)

12x + 16 =100 ft (Multiply length of one side by 4, which is number of side on a square)

12x = 84 (This is what is left after subtracting 16 form both sides of the equation making the equation still true)

x = 7 (84 divided by 7 to let X stand alone and get the value of x)

A production line packages 3,000 boxes of cereal per hour. Quality control technicians randomly sample ten per hour and weigh them. The boxes are classified as underweight or not. X, the number of underweight boxes will be approximately ___________distributed.

Answers

Answer:

The boxes are classified as underweight or not. X, the number of underweight boxes will be approximately ___normally___distributed

Step-by-step explanation:

For a normal distribution the sample size must be less than or equal to 30.

The central limit theorem states that if a variable X from a population has a mean u and a finite variance σ² then the sampling distribution of the sample mean x bar approaches  a normal distribution with mean u and variance σ²/n as the sample size n approaches infinity.

In the given question the sample size n= 10 and population size N= 3000.

Here n < 30 . But if the population is normal this theorem holds true for sample size n < 30.

The number of underweight boxes should be normally distributed.

What is a normal distribution?

It is the distribution where the sample size should be lower than or equal to 30

Since the size of the sample is n = 10 and the size of the population is N = 3000

So here n should be less than 30

Therefore, it is normally distribution.

Learn more about sample here: https://brainly.com/question/3204183

Sally consumed 2.5 gallons of water in one day. How many milliliters are equal to 2.5 gallons

Answers

Answer:

9463.53 milliliters

Step-by-step explanation:

Answer:

9,462.5 option c

Step-by-step explanation: I did this and got 100%

I NEED HELP PLS ASAPPPPPPP

Answers

QUICK ANSWER: 8,700,000

i believe the question is asking the difference between the total amount of people between NY and Pittsburg.

9×10^6 = 9,000,000 (NYC)

3×10^5 = 300,000 (Pittsburg)

subtract them and it helps you get your answer

(hope this somehow helps, i'm not good at explaining)

Divide. Express your answer in simplest form.
2 1/2 divided by 2 1/6

Answers

Answer:

15/13

Step-by-step explanation:

Convert to improper fractions: 5/2 divided by 13/6

Multiply the first term by reciprocal: 5/2 * 6/13 = 30/26

Simplify: 30/26 can become 15/13

[tex] = 2 \frac{1}{2} \div 2 \frac{1}{6} [/tex]

[tex] = \frac{5}{2} \div \frac{13}{6} [/tex]

[tex] = \frac{5}{2} \times \frac{6}{13} [/tex]

[tex] = \frac{30}{26} [/tex]

[tex] = \frac{30 \div 2}{26 \div 2} [/tex]

[tex] = \frac{15}{13} [/tex]

[tex]\color{hotpink} = 1 \frac{2}{13} [/tex]

[tex]\therefore\color{olive}2 \frac{1}{2} \div 2 \frac{1}{6} = \color{hotpink} \frac{15}{13}\color{olive} (or) \color{hotpink}1\frac{2}{3} [/tex]

It takes Andre 4 minutes to swim 5 laps How many minutes per lap is that?

Answers

Answer:

It takes him 1 minute and 25 seconds

Step-by-step explanation:

5 ÷ 4 = 1.25

The number of laps per minute is 1.25 laps.

Given that, time = 4 minutes and the number of laps = 5.

What is the unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Here,

Number of laps per minute = Total number of laps/Number of minutes

= 5/4

= 1.25 laps

Therefore, the number of laps per minute is 1.25 laps.

To learn more about the unitary method visit:

brainly.com/question/22056199.

#SPJ3

What are the solutions of x squared + 6 x minus 6 = 10?
X= -11 or X= 1
X= -11 or X= -1
X= -8 or X= -2
X= -8 or X=2

Answers

Answer:

Step-by-step explanation:

i think the answer is the

X=(-8) or X=(-2)

if not then its the

X=(-8) or X=(2)

Answer:

X= -8 or X= 2

Step-by-step explanation:

Its D on edg.

Arthur is building a rectangular sandbox for his son. The area of the sandbox is 17 square feet. If the length of the sandbox is 3 feet, what is the width of the sandbox?

Answers

Answer:

17/3 feet

Step-by-step explanation:

Area of a rectangle is length times width

The length is 3, so the width is area over length=17/3

Answer:

The answer is 5 1/4.

Step-by-step explanation:

You have to divide 17 23/32 from 3 3/8 to get 5 1/4. Hope this helps!

Can you guys answer this quick please!
A line has a slope of zero.Which of the following points could this line pass through.
A.(12,9) and (12,6)
B.(3,-6) and (7,-6)
C.(1,4) and 2,5
D. -9,7 and 9,-7

Answers

Answer:

B. (3,-6) and (7,-6)

Step-by-step explanation:

because when the slope is zero the y's should be the saem, for it's a straight horizontal line.

3 1/4 quarts in pints

Answers

6.5 pints.

3.25 x 2 = 6.5 (There are 2 pints in a quart)

A train is traveling at a constant speed and goes 7.5 kilometers in 6 mins. At that rate how far does the train go in 100 mins?

Answers

Answer:

125 kilometers

Step-by-step explanation:

7.5/6 = 1.25

1.25 x 100 = 125

Mr. Watson ran 8 miles in 48 mins. How many miles can he run in 60 mins?




I REALLY NEED HELP PLZ!!!

Answers

7.5 you just have to divide  60  by 8

-4(12 - 6b) = -12(b + 4)

Answers

Answer:

b=0

Step-by-step explanation:

-4(12 - 6b) = -12(b + 4)

-48 + 24b = -12b - 48

24b = -12b

b=0

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