Which value of y makes the equation y+4.2=21 true?

Answers

Answer 1

Answer:

16.8

Step-by-step explanation:

21-4.2= 16.8


Related Questions

Please I really need help (50 points)
Provide the missing statements and reasons for the following proof.

Answers

Answer:

PROOF FOR THE "PROVE" SECTION:

As linear pairs, angle 2 and 3 are supplementary to each other. Angle 1 is equal to angle 2, as they are both same-side interior angles. Therefore, angle 1 and angle 3 are also supplementary.

Filling in the missing blanks:

S1. Angle 1, Angle 2, Angle 3

S2. Angle 1 and Angle 2

R3. Congruent (___)

R5. supplementary angles

S7. Angle 1 = Angle 2, so Angle 1 can be substitued in for Angle 2 in any equation, and Angle 2 can be substitued for Angle 1 in any equation as well (they can replace each other, like x=y & y=x or a=b & b=a)

Hope this helped! Have a great day (pls mark brainliest)!!

Let w = 4. Enter >, <, or = to compare the expressions. 3w² + 1 10w + 8

Answers

Answer: ≥ without the line on the bottom.

Step-by-step explanation:

I am assuming the expression you are talking about are

[tex]3w^{2} +1[/tex] and [tex]10w+8[/tex].

If we were to replace w with 4 and calculate, we will find the answer:

[tex]3*4^{2} +1=3*16+1=48+1=49[/tex]

[tex]10*4+8=40+8=48[/tex]

Since the first expression, [tex]3w^{2} +1[/tex], is bigger than the second expression, the correct symbol to use is ≥ without the line on the bottom.

Cory has $24 more than twice as much as Stan. Together they have $150. How much money does each have?

Stan has $50 and Cory has $74

Stan has $42 and Cory has $108

Stan has $63 and Cory has $87


Stan has $108 and Cory has $42

Answers

Answer: B Stan has $42 and Cory has $108.

Step-by-step explanation:

The awnser is Stan has $42 and Cory has $108 and $108 + $42 = $150.

                            CAN YOU PLEASE MARK ME BRAINLY.

23. Island cruises booked a group of vacationers on a cruise that has a fixed cost of $39,600. Later, 100 more
people join the cruise, and the average cost decreases by $275 per person. How many persons were booked
originally?

Answers

244 person
See attached picture

Find the LCM of the numbers.
3,16,20

Answers

Answer:

240

Step-by-step explanation:

find multiples of 3 16 and 20 and multiply the multiples . you will get 240 .

i hop it helps you ❤

My question that I need help on

Answers

Answer:

Step-by-step explanation:

[tex]\huge \dag \sf{Answer \: it}[/tex]​
Refer to attachment.
Note: Spams not allowed.
Don't Copy
If you don't know the answer don't answer
Need Answer with explanation.
Thank You!​

Answers

Answer:

[tex]option \: (b) \: is \: ur \: answer \: to \: the \: question \: [/tex]

[tex]to \: know \: the \: answer \: with \: proof[/tex]

[tex]refer \: to \: the \: above \: attatchment[/tex]

[tex]f = \frac{rn}{1 - r} [/tex]

[tex]\huge \tt༆ Answer ༄[/tex]

The required expression is ~ B

[tex] \boxed{ \sf \: F = \dfrac{ RN }{ 1 - R} }[/tex]

Refer to the attachment for Solution ~

Eva is working two summer jobs, making $16 per hour tutoring and $8 per hour clearing tables. Last week Eva worked 3 times as many hours clearing tables as she worked hours tutoring hours and earned a total of $80. Graphically solve a system of equations in order to determine the number of hours Eva worked tutoring last week, x,x, and the number of hours Eva worked clearing tables last week, yy.

Answers

Answer:

48 and 32 6 hours clearing tables and 2 hours tutoring

Step-by-step explanation:

we can rewrite this as a fraction. we will use 1/10s because 80 can be divided by 8 which is in the problem. we then have to find out what two numbers add up to 8 but one is 3 times the other. 6 and 2 fit into this problem so we plug it into the equation and we write it as this 6x+4x=80 where x is 8. we get 48 and 32.

i. (x+y) − (x−y) is a ___________ expression.

Answers

It’s a monomial equation.

After opening brackets we get X+y-X+y which is equal to 2y

Term insurance has no value as an investment and is the most expensive type of life insurance.
True
Or false

Answers

Answer:

  False

Step-by-step explanation:

It is true that term insurance has no value as an investment. However, it is the least expensive type of life insurance. The compound statement is false, because one of the elements of the statement is false.

Answer:

false

Step-by-step explanation:

Metallic blocks x,y, and z were placed in the graduates a, b, c. The initial volume of liquid in the equal sized graduates was 40 ml. Which block was placed in which graduate.

Answers

Answer:

hope it helps B-Y, C-Z, A-X

Please help.. I am stuck !

Answers

the answer is D ^-^ !!!

ABCD is a rectangle AB =15 centimeters AC = 25 cm Find The length of BC ​

Answers

Answer:

the answer is explained below (tap on the photo to view it fully)

Solve this system of equations using the Substitution method.

3x + y = -2

y = 2x + 3

Answers

Answer:

Step-by-step explanation:

we see that y = -3x-3

substitute that into the other equation to get

-3x-3 = 2x+7

-5x = 10

x = -2

so, y = -3(-2)-3 = 3

check to make sure (-2,3) solves both equations.

PLEASE HELP whoever answers all of them and first i’m giving brainliest.

Answers

Answer:

1. To solve a one-variable equation, it may be necessary to first multiply by using the Distributive Property

2. The next step is to combine like terms as needed.

3. Then solve for the variable by applying inverse operations.

4. If solving lead to a true equation, then the equation has infinitely many solutions.

5. if solving leads to an untrue equation, then the equation has no solution.

Please help, its Geometry

Answers

Hope it helps just read it and type it in XD

A hot air balloon went from an elevation of 4,060 feet to an elevation of 3,120 feet in 40 minutes. What was its rate of descent?

Answers

Answer:

23.5 feet per minute is the rate

Answer one question. Thanks

Answers

The y-intercept is 4.
Simply identify the y-intercept by looking at where the line crosses the y-axis. Or by looking at the equation (in y=mx+b form), the b term is the y-intercept.

The difference of 2 times a number and 3/4 is 1/2​

Answers

2x-3/4=1/2

The answer is X=5/8

ways to write 25 percent of n,

Answers

Answer:

  0.25n = 25/100n = n/4

Step-by-step explanation:

25% of n = ...

  0.25n = 25/100n = n/4

and any of an infinite number of equivalent expressions.

A package of 3 pairs of insulated socks costs ​$23.07 . What is the unit price of the pairs of socks

Answers

The answer would be 23.07/3 = 23 is $7.69

Aaron travels a distance of 680 miles in 8 hours by train. What is the speed of the train?

A.
75 miles/hour
B.
80 miles/hour
C.
85 miles/hour
D.
90 miles/hour

Answers

Answer:

C 85 miles/hour

Step-by-step explanation:

680 / 8 = 85

Write a two-column proof.

I WILL GIVE BRAINLIEST TO BEST ANSWER! PLS HELP!
refer to images for question
MUST WRITE FULL PROOF

Answers

Proof:-

In ∆TOP and ∆ZAP

[tex]\because\sf\begin{cases}\sf <O\cong <A(Given)\\ \sf TO\cong AZ(Given)\\ \sf <TPO\cong <ZPA(Opposite angles)\end{cases}[/tex]

Hence

∆TOP[tex]\cong[/tex]∆ZPA(Side-Angle-Side)

Step-by-step explanation:

Statement                                                  Reason

∠O ≅ ∠A                                                    Given

TO ≅ AZ                                                    Given

∠OPT and ∠ZPA are vertical angles       Vertical angles theorem

∠OPT ≅ ∠ZPA                                           Definition of vertical angles

ΔTOP ≅ ΔZAP                                           Angle - angle -side AAS postulate

5x – 9 = 3x + 7
Solve for x

Answers

Answer:

Solving for x

5x - 9 = 3x + 7

subtract 3x from both sides

-3x          -3x

2x - 9 = 7

get rid of constants by adding 9 on both sides since addition is the inverse operation of subtraction

+9      +9

2x = 16

divide by 2 since that is the inverse operation of multiplication

/2    /2

x = 8

The solution for ''x'' for the expression ( 5x – 9 = 3x + 7

What is an expression?

Expressions can be evaluated, meaning that they can be simplified to a single value. The value of an expression depends on the values of any variables or numbers within the expression.

To solve for x in equation 5x - 9 = 3x + 7, we want to isolate x on one side of the equation. We can do this by performing the same operation on both sides of the equation, in order to keep the equation balanced.

First, we can simplify both sides of the equation by combining like terms:

5x - 9 = 3x + 7

2x - 9 = 7

Next, we can add 9 to both sides of the equation to isolate the variable term:

2x = 16

Finally, we can divide both sides of the equation by 2 to get the value of x:

x = 8

Therefore, the solution to the equation 5x - 9 = 3x + 7 is x = 8.

To know more about an expression follow

https://brainly.com/question/25968875

#SPJ2

what are the answers to the equation please get back to me

Answers

Answer:

A

Step-by-step explanation:

Since you are multiplying -2 and 12, you can put them in any order as long as you get - 24/5

pls help this is homework

Answers

Answer:

ans 144

Step-by-step explanation:

hope this helps

Answer:

144

Step-by-step explanation:

First we can start by replacing x with the value (2)

[tex]120 + 18(2) - 3 {(2)}^{2} [/tex]

[tex]120 + 36 - 3(4)[/tex]

[tex]120 + 36 - 12[/tex]

Therefore the final answer is 144

A cat gave birth to 3 kittens who each had a different mass between 147 and 159 g. Then the cat gave birth to a 4th kitten with the mass of 57 g. How will the birth of the 4th kitten affect the mean and median?

Answers

I don’t think there is enough kittens being born to know, because weight is a genetic thing and it doesn’t have to be from your parents. It can be from their parents or their parents-parents and so-on.

Cole had 20 dollars to spend on 3 gifts. He spent 11 9 /10 dollars on gift A and 5 3 /5 dollars on gift B. How much money did he have left for gift C?

Answers

Answer:

$2.50

Step-by-step explanation:

11 9/10 + 5 6/10 = 16 15/10 or 16 + 1.50 = 17.50

20 - 17.50 = 2.50

Your yard is a mess, and you decide to hire a landscaper. The garden pros charges 50$ consultation fee plus 30$ per hour for the actual work. What is the total cost if your yard takes 5 hour’s to fix up

Answers

Answer:

$200

Step-by-step explanation:

$50 consutation + $150 5 hour fee.

=$200

If you were to pour marbles into a cup of water, you would make a __________.

A. heterogeneous

B. homogeneous

Answers

Answer:

heterogeneous is the answer

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