12 + 3y = 21
Expression or Equation:

Answers

Answer 1
It is an equation because it has an equal sign. Whereas an expression does not have an equal sign.
Answer 2

Answer:

equation

Step-by-step explanation:

12 + 3y = 21

-12. -12

__________

3y = 9

y = 3


Related Questions

During a blind taste test of 8 different
sodas, some people were asked to choose
a favorite. Each dot represents one person.
Taste Test
.
A
B
С
F
G
H
D E
Soda
If the ratio of people choosing B to people
choosing H stays the same, how many
people will choose H if the number of people
who choose B increases to 20?
F 6
G4
H5
J 3

Answers

Answer:

the answer is 5

Step-by-step explanation:

the ratio is 4:1 so if you increase B to 20 you divide by 4 to get 5.

20:5=4:1

Whats the slope using Rise/Run?
Thanks

Answers

Answer: 1/4

Step-by-step explanation: Use (y2-y1)/(x2-x1) to find slope. The points are (-1, 1) and (-5, 0). (0 - 1)/(-5+1)= -1/-4 = 1/4

Hope this helps!

Scuba diver dives at a rate of 20 ft./min. If the diver starts at the surface what is the depth of the diver after 4 minute

Answers

Answer:

80 ft

Step-by-step explanation:

Distance = rate x time. Therefore, 20 ft / min x 4 min = 80 ft.

How many times greater is the value of the 6 in 618,923 than the 6 in 27.652

Answers

600,000 there



- helaaaa

The value of 6 in  618,923 is 1,000,000 or 1 million times greater than that of 6 in 27.652.

What is Place Value?

Place value of a digit in a number is defined as the value of that digit according to the position where it stands.

Place value of a whole number of digits from right to left can be expressed as ones, tens, hundreds, thousand, etc.

Place value of a decimal number after the decimal point from left to right can be expressed as tenths, hundredths, thousandths, etc.

The given numbers are 618,923 and 27.652.

Place value of 6 in 618,923 = 6 × 100,000

That is 6 hundred thousands is the place value.

Place value of 6 in 27.652 = 6 × 1/10 = 6 × 10⁻¹

This is at the tenth place.

6 × 100,000  = 6 × 10⁻¹ × 1,000,000

So 6 × 100,000  is 1,000,000 times greater than 6 × 10⁻¹.

Hence the value of 6 in 618,923 is 1,000,000 times greater than the 6 in 27.652.

Learn more about Place Values here :

https://brainly.com/question/27734142

#SPJ2

Javed downloaded from the Internet two files that had a combined size of 696 megabytes. The size of the first file was 290 megabytes, and it took 5 minutes to download. Assuming that the files downloaded at a constant speed, how long did it take for the second file to download?

Answers

Answer:

7 minutes

Step-by-step explanation:

The computation of the time taken for downloading the second file is given below:

Given that

The combined size for both files is 696 megabyres

And, the size of the first file is 290 megabytes

So, the size of the second file is

= 696 - 290

= 406

Now for the first file it took 5 minutes to download

So for the second file, it would took

= 406 × 5 minutes ÷ 290

= 7 minutes

Answer:

7 minutes

Step-by-step explanation:

The computation of the time taken for downloading the second file is given below:

Given that

The combined size for both files is 696 megabyres

And, the size of the first file is 290 megabytes

So, the size of the second file is

= 696 - 290

= 406

Now for the first file it took 5 minutes to download

So for the second file, it would took

= 406 × 5 minutes ÷ 290

= 7 minutes

Please help ASAP thanks:)!!!!!

Answers

Answer:

I think its

Step-by-step explanation:

left second one

А
E E
С
D
B
If mZACD = 100°, then mZACE = [?]°

Answers

Answer:

80 degrees

Step-by-step explanation:

a line is always 180 degrees

one side of that line is 100

so, just subtract 100 from 180

you get 80

180 - 100 = 80

The number of eggs in the refrigerator e decreased by 3 equals 15.

Answers

Answer:

e - 3 = 15

or if you're looking for the answer to the problem

18

Step-by-step explanation:

Pls aware rn I need this no links

Answers

Answer:

23 degrees

Step-by-step explanation:

. that is the answer

The image of the point (2, -3) under a translation is (-1, 1). Find the coordinates of the image of the point (5, 6) under the same translation.

Answers

Answer:

the anser is b great job

Step-by-step explanation:

Please answer this solve the proportion x/8 = 9/4 X=

Answers

[tex]\frac{x}{8}=\frac{9}{4} \\\\4x=72\\x=18\\[/tex]

hope this helps :)

please answer the math question, I will give brainlie'st to the first to answer correctly and has a very easy to understand layout for the answer. Please explain how you figured it out.
15 + 4(10 - 2 · 5) + 7 =

7
22
182
767

Answers

Answer: 52

15 + 4 (10 - 2 × 5) + 7

15 + 4×(10 - 10) + 7

15 + 0 + 7

= 22

...sorry i thought it was a decimal between 2 and 5

Answer:

22

Step-by-step explanation:

15+4(10-2×5)+7

15+4(10-10)+7

15+4×0+7

15+0+7

15+7

22

x^2-4x+6x-24 factored​

Answers

Answer: (X+6)(x-4)

Step-by-step explanation:

x^2-4x+6x-24 ==> x^2+2x-24

*Find two numbers that multiplied gives you -24 and add up to 2*

(6)(-4)= -24          6-4=2

Final result= (x+6)(x-4)

4x + 21 < 17
PLS HELP ME MATES <3

Answers

Answer:

x < -1

Step-by-step explanation:

Give Brainllest plz mate

Answer:

x < -1

Step-by-step explanation:

subtract 21 from 17

divide on both sides by 4

sorry if this isn't what you're asking

The ratio of melanie's allowance to jacob's allowance is 4.1 to 20.5. If Jacob gets $5.00,how much allowance does melanie get?

Answers

Answer:

1.00

Step-by-step explanation:

x=(5*4.1)20.5

x=1

CAN SOMEONE PLZ HELP ME?? PLZ DO YOU KNOW ABOUT Coordinate Planes??!! plzzzzzz help

Answers

Answer: the distance from x axis is 4

Step-by-step explanation:

the y coordinate is 2 the x axis is on the bottom and 2 units for each number so 4 units

Answer:

Since e on the y-axis is 2, e on the x-axis would be 2 if you look at its distance from the x-axis because you have to look at the intersect

Step-by-step explanation:

Help on these two pleaseeeeeeeeeee

Answers

4. 2k-13
Hope this helps!

I'll mark you brainliest if your correct​

Answers

Answer:

The answer is 7

Step-by-step explanation:

on the graph number 6 is spun at 7

ѕєє thє híght σf вαr αt 6!! whαt'ѕ thє hєíght? σвvíσuѕlч ít'ѕ 7

í hσpє чσu gєt ít :)

The sum of the ages of my 3 children is 45 years.
If their ages are consecutive odd integers,
how many years old is my oldest child?
A) 17
B)19
C) 21
D) 23

Answers

I think A, but im not 100% sure

Find the Circumference and Area of the circle with a diameter of 3 inches.

Answers

Answer:

Circumference-18.84956, rounded, 18.85

Area- 28.27433, rounded-38.27

Answer:

C≈9.42in

A≈7.07in²

Step-by-step explanation:

C=2πr

d=2r

C=πd=π·3≈9.42478in

A=πr2

d=2r

A=1

4πd2=1

4·π·32≈7.06858in²

Hope this helps!

45 minutes ago
Share
Background
Layout
Theme
Transition
4.
P:
Caleb invests $10,000 in a savings
account that pays 3% simple interest.
How many years will it take the account
to grow to $12,700, if he does not make
any withdrawals or deposits?
A 7 years
B 12 years
C 9 years
22 years
r:
t:
D
k to add speaker notes

Answers

Answer:

876889068

Step-by-step explanation:

Which of the following describes the data set 6,8,13,15,21,23,31

Answers

Answer:

what are the answer choices?

i'll edit my answer if you give them to me and i know the answer

Step-by-step explanation:

Answer:

It has two numbers per turn. The first is 2 and stays the same the whole time. The second number starts as 5, but every time it hits that number, it increases by 1.

Step-by-step:

As we already know, two starts off the turn, so every number on this turn will increase by 2 (6+2=8.)

Now, for this one, we have five, so for this turn we'll increase it by that much (8+5=13).

However, this number won't stay at 5. Instead, it will increase by 1 every time we hit this turn. Let's continue one:

Turn Two = 13+2=15

Turn 5+1 = 6 = 15+6=21

Turn Two = 21+2=23

Turn 6+1 = 7 = 23+7=31

And from there, the pattern would/will continue!

Hope this helped! <3

Source(s) used: N/A

Ahh help, I need this question due in 10 mins-

Answers

I believe its 838 inches squared

Whats the area of a circle with a circumference of \blueD{50.24}50.24start color #11accd, 50, point, 24, end color #11accd units.

Answers

Answer:

[tex]A=200.96\ unit^2[/tex]

Step-by-step explanation:

Given that,

The circumference of the circle, C = 50.24 units

We need to find the area of the circle.

The formula for the circumference of the circle is given by :

[tex]C=2\pi r[/tex]

r is the radius of the circle

[tex]r=\dfrac{C}{2\pi}\\\\r=\dfrac{50.24}{2\times 3.14}\\\\r=8\ units[/tex]

The formula for the area of a circle is given by :

[tex]A=\pi r^2\\\\A=3.14\times 8^2\\A=200.96\ unit^2[/tex]

So, the area of the circle is equal to [tex]200.96\ unit^2[/tex].

A 4 pound force acting in the direction of (4,-2) moves an object just over 7 ft from point (0,4) to point (5,-1). Find the work done to move the object to the nearest foot-pound

Answers

Answer:

[tex]W=59.7408J[/tex]

Step-by-step explanation:

From the question we are told that:

Force [tex]f=4N[/tex]

Force Direction [tex]\arrow (4,-2)[/tex]

Distance traveled [tex]d_t=7ft \aprrox\ 2.1336m[/tex]

Distance traveled Direction point (0,4) to point (5,-1)

 

Generally the equation for work done is mathematically given by

 [tex]W=force*distance[/tex]

 [tex]W=f*d_t\\W=4*7*2.1336[/tex]

 [tex]W=59.7408J[/tex]

Write the expression of the quotient of 44 and 11

Answers

I think it would be
ANSWER: x = 44/11

Figure 1 is dilated to get Figure 2.

What is the scale factor?

Answers

Answer:

2/3

Step-by-step explanation:

6/9 in simplest form is 2/3. That's the scale factor :)

A stadium has 500 seats and 5 VIP boxes. The stadium is divided into 25 equal sections: 5 premium sections and 20 standard sections. A seat at the premium section costs $45 per game. A seat at the standard section costs $25 per game.

1. How many seats are there in each section?

Answers

20 seats in each section, divide 500 by 25=20

Translate to figure 2 units left and four units down

Answers

(-3,0), (0,-1), (-3,-5), (1,4)

After 2.5 years your investment account has earned $450 in interest. If the interest rate is 7.5% what was the principle on your account?

Answers

Answer: $2400

Step-by-step explanation:

Given

Interest earned is $450

The rate of interest is R=7.5%

Time period T=2.5 years

Simple Interest is given by

[tex]S.I.=\dfrac{P\times R\timesT}{100}\quad [\text{P=Principal}][/tex]

Substitute values

[tex]450=\dfrac{P\times 7.5\times2.5}{100}\\\\P=\dfrac{450\times 100}{7.5\times 2.5}=\$2400[/tex]

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