ASAP solve 21x+6=300 30 points

Answers

Answer 1

Answer:

x = 14

Step-by-step explanation:

Answer 2

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression. 21x+6=300 X=14, 21x14=294+6=300.


Related Questions


Learning Task 2 without graphing tell whether the graphs of the system of equations are parallel, perpendicular,intersecting or coinciding
1.y = x + 7 and y = - x + 2
2.Y = 5x and y = 5x - 1
3. 2x + y = 1 and 2y + 4x = 2
4. Y = 2x + 3 and y = -x - 4​

Answers

Answer:

1.Perpendicular

2. Parallel

3. Parallel

4.

Step-by-step explanation:

If two lines are parallel, slope is equal

If perpendicular, product of slopes is -1

y = mx + c is the general equation of a line form

m represents slope

1. slope is -1 and 1, they are perpendicular

2. Slope is 5 in both cases, they are parallel

3. slope is equal; equation ii is same as i if rewritten

They are parallel

4.

50.2 x 1 10² tenths equal?

Answers

Answer:

607,420

Step-by-step explanation:

hope it is correct and helps

Is the relationship a function yes or no?

Answers

Answer:

no because 3x nothing equals 14 and 4x nothing equals 18

hope this helps plz mark brainliest

Step-by-step explanation:

TWENTY PIONTS!!!!! what completes the prime factorization of 315

Answers

Answer:

Positive Integer factors of 315 = 3, 9, 5, 45, 7, 315 divided by 3, 3, 5, 7, gives no remainder. Step-by-step explanation:

What are some real world examples of like terms?

Answers

Answer:

One twin and One twin have like terms, they're both twins.

What is the absolute value of -0.58?

Answers

.58. Absolute value gets rid of negative.

Answer:

0.58 I think because absolute value is positive

can some one help me on this and thank u

Answers

Answer:

2<x<3

Step-by-step explanation:

the first one

Please show steps on how you simplified it

Answers

Answer:

4(3^2)

3^2=9

4(9)= 36

Answer:

4(3•3)

4(9)

36

Step-by-step explanation:

3 to the second power is equal to 3•3, which is equal to 9

Then you do 4 times 9, equals to 36

How long will it be from December 18 from 8:25 am to December 24 to 4.30 pm

Answers

December 18th to 24th is 6 days! And 8:25am to 4:30 pm is 8 hours and 5 minutes. So, in total, it’s 6 days, 8 hours, and 5 minutes.

can anyone do division on paper plsss​

Answers

Answer:

738.75

Step-by-step explanation:

i hope this helps im sorry if im wrong

Step 1: D for Divide. How many times will 80 go into 59100 ? ...

Step 2: M for Multiply. You multiply your answer from step 1 and your divisor: .

Step 3: S for Subtract. Next you subtract. ...

Step 4: B for Bring down. ...

Step 1: D for Divide. ...

Step 2: M for Multiply. ...

Step 3: S for Subtract.

Quick I need the answer

Answers

Answer:

x = 25!

Hope This Helps!

She needs to find her maximum heart rate m by subtracting her age a from 220 write an equation she can use

Answers

Answer:

220 - a = m

Step-by-step explanation:

her age is the variable "a"

Brainliest!!!!!!!
12(7y+4)

Answers

[tex]{\huge{\boxed{\mathcal{\green{ANSWER}}}}} \\ \\ 12(7y + 4) = 0 \\ \\ 84y + 48 = 0 \\ \\ 84y = - 48 \\ \\ y = - 48 \div 84 \\ \\ y = - 0.571 \\ \\ {\huge{\boxed{\mathfrak{\pink{hope \: it \: helps}}}}}[/tex]

what is this answer? :)

Answers

Answer:

the answer is b

Step-by-step explanation:

Plzz what the answer I’m stuck

Answers

Answer:

the answer to your question is 576 square feet

Step-by-step explanation:

Step 1: 96 ÷ 4 = 24

Step 2: 24×24 =576

Consider vectors u and v, where u = (1, -1) and v = (1, 1). What is the measure of the angle between the vectors?

Answers

Answer:

I believe the answer is C. 90 degrees

Step-by-step explanation:

First you find the lengths of the two vectors, which are both [tex]\sqrt{2}[/tex]. Then you find the angle given the cos using:   cos(∅)=[tex]\frac{u*v}{|u|*|v|}[/tex] = [tex]\frac{0}{\sqrt{2}*\sqrt{2} }[/tex] = 0. Then using ∅=acos(0)=[tex]\frac{\pi }{2}[/tex] = 90°

Answer:

c

Step-by-step explanation:

edge

Please help me, i can't get this question wrong, please and thank you.

Answers

I believe the answer is D) the man is two (2) times smaller than the yeast cell.

Hope this helps✨❤️

Complete the missing value in the solution to the equation:
6x + ==y + 2x
(3,

Answers

Answer:

(3, - 2)

given y = - 2, then

- 2x + 4 = - 2 ( solve for x )

subtract 4 from both sides

- 2x = - 6 ( divide both sides by - 2 )

x = -6/-2 = 3

have a wonderful day :)

-Ary

please help first will be brainliest

Answers

Answer:

Just multiply or divide the numbers they give you try both

Step-by-step explanation:

If y by itself what does that means?

Answers

Answer:

[tex]here \: y \: by \: itself \: means \\ \: y \: stands \: alone \: with \: \\ nothing \: nearby \: it .\\ \\ hope \: it \: helps..[/tex]

by itself means it’s alone. or there’s no one of nothing near

Help. Will give brainliest :)

Jill has a photograph that is 4 inches wide by 6 inches high. If she enlarges it so that the width is 12
inches, what will be the height?

Answers

Answer:

18 inches!

Step-by-step explanation:

Since you are multiplying the original size by 3 times (4 in. originally • 3 = 12 inches) you just multiple the original height by 3 (6•3=18)

hope this helped!

88 x 88/22 x 11 x 11​

Answers

Answer:

42592

Step-by-step explanation:

Answer:42592

Step-by-step explanation: So what you do is do 88 times 88/22 and so on :)

Convert 3 2/7 into improper fractions

21/7
23/7
41/7
None of the above

Answers

Hello,

The correct answer is B.

Further explanation: The first step is to multiply 3 by 7. That gives you 21, then add 21+2. Then put your denominator at the bottom.

Workspace:

3 * 7

=21

21 + 2

=23/7

what is 3,910 divided by 25 using the power of 10
A: 25
B: 250
C: 25,000

Answers

Answer:

izuocha is superior

Step-by-step explanation:

Answer:

ochaochaochaocha

Step-by-step explanation:

sorry i trying to get attention from someone

Three friends pay 1025 to rent a vacation home. Beth contributed $80 more than danny. Katie contributed $20 less than Beth. How much did Danny contribute?

Answers

Answer:

Danny contributed $295

Step-by-step explanation:

Assume that Danny contributed $x

Danny contributed x

∵ Beth contributed $80 more than Danny

→ Add The amount of Danny by $80 to get the amount od Beth

Beth contributed x + 80

∵ Katie contributed $20 less than Beth

→ Subtract the amount of Beth by 20 to get the amount of Katie

∴ Katie contributed x + 80 - 20

Katie contributed x + 60

∵ The three friends pay $1025

→ Add their amounts and equate the sum by 1025

x + x + 80 + x + 60 = 1025

→ Add the like terms in the left side

∵ (x + x + x) + (80 + 60) = 1025

∴ 3x + 140 = 1025

→ Subtract 140 from both sides

∴ 3x + 140 - 140 = 1025 - 140

∴ 3x = 885

→ Divide both sides by 3

x = 295

∵ x represents the amount of Danny contributed

Danny contributed $295

Larissa takes a dose of 4 drops of medicine every day, three times a day. One milliliter (mL) of the medicine contains about 20 drops. If the medicine comes in a 12 mL bottle, approximately how many days will the bottle last?

Answers

Answer:

The bottle will last for 20 days.

Step-by-step explanation:

Given that:

Number of drops in a dose = 4 drops

Dose is taken three times a day, therefore,

Number of drops taken in a day = 4*3 = 12 drops

One milliliter = 20 drops

12 mL = 20*12 = 240 drops

Number of days the bottle will last can be find out by calculating total number of drops by the number of drops consumed in a day.

Number of days bottle will last = [tex]\frac{240}{12}=20[/tex]

Hence,

The bottle will last for 20 days.

Kim reads 360 words in 3 minutes. It Kim continues to read at the same rate, how many words can she rend in 1 hours?

Answers

Answer:

7200 word in 1 hour

Step-by-step explanation:

360/3 to get how many words she can read in a minute which is 120.

Then times it by 60 (60 mins in an hour) to get the total amout of words she reads in an hour. 120 x 60 = 7200 words.

The equation 125 + 37.52x = y models the amount of money in your wallet Y is the total amount of dollars and x is the number of weeks from today. Is the equation in slope intercept form? Explain

If you graphed this situation what would the slope represent? Explain

If you graphed this situation what would the y intercept be and what would it represent?

What units make sense for the slope?

Answers

Answer:

Please check solution for answer

Step-by-step explanation:

The general equation of for the slope of a line is

y = mx + c

where m is slope and c is the y-intercept

a). Yes it is in the slope-intercept form

b) The slope would represent the amount of money in dollars per week that is in the wallet

c) The y-intercept would be 125 and it is the amount of money present in the wallet before today

d) The slope would have a unit of dollars per week

What is the graph of the given function?
f(x) = -2(x – 3)2 + 4
Graph

Answers

Answer:

the graph attached is the answer

Use the graph below to answer the question.

On a coordinate plane, a horizontal line is at y = 4.

What is the slope of a line that is parallel to the line in the graph?

Answers

Answer:

0

Step-by-step explanation:

edg 2020

Answer:

0

Step-by-step explanation:

if its parallel then its gonna be the same slope

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