What is the value of a in the equation 3 a plus b equals 54, when b equals 9?

15
18
21
27

Answer:

153.94cm²

Step-by-step explanation:

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[tex]Area = \pi \times ({radius})^{2} [/tex]

[tex]Area = \pi \times ({7})^{2} [/tex]

[tex]Area = \pi \times 49[/tex]

[tex]Area = 49\pi[/tex]

Done...

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Answer:

372,100.............

Answer:

[tex]372100[/tex]

Step-by-step explanation:

A number to the [tex]x[/tex] power represents [tex]x[/tex] amount of times the number is multiplied by itself. To the second power means that the number is multiplied by itself twice.

[tex][(20\times30)+10]^2 = 610^2[/tex] (first work on terms inside parentheses)

[tex]= 372100[/tex]  ([tex]610^2 = 610\times 610[/tex])

Hope this helps :)

Answer:i think all real numbers greater than or equal to -2

Step-by-step explanation:

hope this helps

Answer:

1,000 miles

Step-by-step explanation:

set up the equation as

100x = d

where x equals the number of half inches between two points on the map

and d equals the distance between those points in real life

5 inches = 10 half inches so, plugged in the equation looks like

100(10) = d

simplify it to

1000 = d

and bam, the real distance is 1,000 miles

Answer:

Step-by-step explanation:

Son directamente proporcionales porque cuanto mas horas trabajes mas dinero ganaras

Answer:

a = 3, b = 5, and c = 1.

what is ac + b=8 answer

Step-by-step explanation:

a(c)+b

3(1)+5

3+5= 8

The required solution is 8 when substituting the values of a = 3, b = 5, and c = 1.

Algebraic expressions are mathematical statements with a minimum of two terms containing variables or numbers.

The expression is given in the question, as follows:

ac + b

We have to determine the evaluation when a = 3, b = 5, and c = 1.

As per the question, we have

⇒ ac + b

Substitute the values of a = 3, b = 5, and c = 1 n the above expression,

⇒ 3(1) + 5

⇒ 3 + 5

Apply the addition operation, and we get

⇒  8

Thus, the required solution is 8.

Learn more about the algebraic expression here :

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Answer:

-12x -15

Step-by-step explanation:

3(-4x-5)

3*-4x -3*5

-12x -15

Answer:

-12x-15

Step-by-step explanation:

expand and simplify

-12x-15

Answer:

1.) 120.722222206 or  120.72

2.) 650.250000382 or 650.25

Step-by-step explanation:

Answer:

I don't know

I don't know

Answer:

i think its 7

Step-by-step

if the jeans were $3.50 and she bought 2 just do 3.50x2 and you will get 7

Answer:

25

Step-by-step explanation:

3x - 5 = 2x + 20 ( corresponding angles)

3x - 2x = 20 + 5

x = 25

Answer:

3. a=300/30

Step-by-step explanation:

you want to figure out how many packages she received, and there are 30 beads in each package. so, you divide the total amount of beads (300) by the amount in each package to determine how many packages there are. 300/30=10 packages of beads

Answer:

7 and 1/3 miles

Step-by-step explanation:

Answer:

13,000................

Answer:

13,000

Step-by-step explanation:

Its 13,000 because that 2 changes into a 3 but three isn't over 5.

Answer:

-10/3 or -3 and 1/3

Step-by-step explanation:

you can do y1-y2 over x1-x2 of two points

or you can count the rise oiver run from (5,-5) to (2,5) which is 10/3

but its negative slope cause your going back 3 to the left

Answer:

80 degrees

Step-by-step explanation:

since ac and bc equal each other, it is an isosceles triangle. due to that, the measure of angle a and b are 50. so the measure of angle c is 80. due to some theorem, angle ecd is equal to angle acb. so ecd = 80

Answer:

Step-by-step explanation:

Find the LCM of 30 & 20

30 =  2 * 5 * 3

20 = 2 * 2 * 5

LCM = 2 * 3 * 2 * 5 = 60

60 minutes = 1 hour

So, again at 10am both will leave at the same time

Answer:

11 am.

Step-by-step explanation:

That would be the LCM of 20 and 30 which is 60 minutes.

So the nexrt time will be 10.00 + 60 mins

= 11.00 am.

Answer:6.66

Step-by-step explanation:

I’m pretty sure its infinite if not just putt that answer

Answer: 84 r4

Step-by-step explanation:

I think that is correct.

Answer:

your right that the right answer

Answer:

last one is right please please please mark me brainliest if apreciated

Step-by-step explanation:

Answer:

a.

Step-by-step explanation:

for A, put a dot on (0,2) and (1,5) and connect them (arrow should be pointing up)

then make another line by plotting a dot on (0,-2) and (1,-4) (arrow should be pointing down)

since the < and > have an equal to (_) line at the bottom, the point/dot at (0,2) and (0,-2) have to be filled in

Answer:18 , for the first one

Step-by-step explanation: because 10+8= 18

anser:15

Step-by-step explanation:first add 12+16+10+26+14+12=90divide by how mnay numbers in this case 6 90 divied=15

Mean of given dataset is 15.

It is the sum (total) of all the values in a set of data, such as numbers or measurements, divided by the number of values on the list is called mean.

Given dataset

12, 16, 10, 26, 14, 12

Mean = [tex]\frac{12+16+10+26+14+12}{6}[/tex]

= [tex]\frac{90}{6}[/tex]

= 15

Mean of given dataset is 15.

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Answer: 80°; the supplementary angle to the 30° angle and ∠1 is a corresponding angle to the 70° angle this means that the supplementary angle to the 30° angle and ∠1 is a 70° angle therefore 30°+m ∠1+ 70° equals 180°. So, m ∠1= 180°.

Step-by-step explanation:

The measure of angle 1 should be 80 degrees.

Two angles whose sum is 180° are called supplementary angles. If a straight line is intersected by a line, then there are two angles form on each of the sides of the considered straight line. Those two two angles are two pairs of supplementary angles.

Then its meaning; supplementary angles are aligned adjacent to each other, and their exterior sides will make a straight line.

The supplementary angle to the 30° angle and ∠1 is a corresponding angle to the 70° angle which means that the supplementary angle to the 30° angle and ∠1 is a 70° angle.

Therefore 30° + m ∠1 +  70° = 180°.

100 + m ∠1= 180°.

So, m ∠1= 80°.

Learn more about supplementary angles here:

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Answer:

−72p+48n

Step-by-step explanation:

Answer:

The answer is "0.36".

Step-by-step explanation:

we assume, that they are not blood-relatives, then we need both the dates (birth and death)

Births between 1512 and 2012 may occur at any time, and all of the math forms are what we have to be born at least 100 years apart.

Pr(Mathematician 1 is born inside an interval of 1512-2012 on a particular year)= [tex]\frac{1}{50000}[/tex])

Mathematician 2 born in 1512-2012 interval on every specific year) = [tex]\frac{1}{50000}[/tex]

S Year of birth'

After that, We need to find all of the years of absolute value (birth the year Mathematician 1-birth year of Mathematician 2) <= 100 or give the probability of this happening.

Prob(Mathematician 1 birth between 1512-2012 in a specific group of 100 years):

[tex]\to \frac{100}{500}=\frac{1}{5}[/tex]

For just a mathematician, are using the same rationale 2.

By using fact for freedom now Pr(that the dual births are divided by 100 years)) = 1-Pr(they are divided by more than 100 years):

[tex]\to 1- (\frac{400}{500})^2 \\\\\to 1- (\frac{4}{5})^2 \\\\\to 1- \frac{16}{25}\\\\\to \frac{25 -16}{25}\\\\\to \frac{9}{25}\\\\\to 0.36[/tex]

Answer:

14.2 years

Step-by-step explanation:

The town grows 4% (0.04) every year.

3000 x 0.04 = 120, so the town gains 120 people every year.

The town needs 1700 more people to get to 4700.

So, 4700/120= 14.1666666667

That rounds up to 14.2 years.

Hope this helped :)

Answer:

5

Step-by-step explanation:

When dividing degrees, you subtract. Ex: x^6/x^1=x^5