Solve for the given variable.
a. 4y + 3 = 19

b. 1
2n - 3 = 5

Answers

Answer 1

Answer:

y=4

Step-by-step explanation:

4y+3=19

=4y=19-3

=y=16/4=4

Answer 2

Answer:

a) y = 4

b) n = 4

Step-by-step explanation:

a) 4y + 3 = 19

Subtract 3 from both sides.

4y = 16

Divide both sides by 4.

y = 4

b) Is the 1 apart of the equation? If not, these are the steps to find n.

2n - 3 = 5

Add 3 to both sides.

2n = 8

Divide both sides by 2.

n = 4


Related Questions

what is the value of g ?

Answers

Answer:

g is 33.4 degrees because vertical angles are congruent.

Step-by-step explanation:

Answer:

[tex]\huge\boxed{Answer\hookleftarrow}[/tex]

[tex]g = 33.4°[/tex]

g = 33.4° because its vertically opposite angle is 33.4°. Vertically opposite angles (V.O.A.) are equal to each other.

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

# ꧁❣ RainbowSalt2²2² ࿐

Evaluate the expression for x = 29.

Answers

If x is 29 and you subtract 6 then the answer is 23
26 is the answer , because i know it

help
p.s im sorry for the Carl Wheezer with a dumptruck i just felt y'all needed to see
OUR GOD

Answers

Is the second one.. hope this helps
The correct answer is the first one

I WILL GIVE BRAINLIEST TO CORRECT ANSWER! C:
Riley kept track of the number of minutes he practiced his piano over six days. On the first five days, he practiced for 30, 20, 25, 15, and 45 minutes. The range of minutes for the six days was 35. How many minutes did Riley practice on the sixth day?


10 minutes

25 minutes

27 minutes

80 minutes

Answers

Answer:

25 minutes

Step-by-step explanation:

Answer:

10 minutes

Step-by-step explanation:

15 + 35 = 50. 50 IS NOT A TEST ANSWER

45 - 35 = 10. 10 IS A TEST ANSWER

please help! giving brainlest if explained

Answers

Answer:

Hello, Im Mack, | Hope your doing well :)

Here is the Answer Ive got for you:

Step-by-step explanation:

Here is the Table filled out with the correct Values:

Speed Equation: (Velocity=distance/time)

Distance: Distance traveled: Time traveled: Speed:

0-2 2 Meters 20 Secs 10secs/m

4-6 6 Meters 30 Secs 5secs/m

8-10 10 Meters 50 Secs 5secs/m

Comment if you need further help, and I will rely asap,

Hope I helped you out :)

Have a great day my friend and best of luck to your studies :)

The cancer is 5m per second

Marsha Deposited $5,500 into a savings account 5 years ago. The simple interest rate is 2%. How much money did Marsha earn in interest?

Answers

Answer: $550.00

Step-by-step explanation: Equation: I = Prt

Calculation:

First, converting R percent to r a decimal

r = R/100 = 2%/100 = 0.02 per year,

then, solving our equation

I = 5500 × 0.02 × 5 = 550

I = $ 550.00

The simple interest accumulated

on a principal of $ 5,500.00

at a rate of 2% per year

for 5 years is $ 550.00.

Hope this helped! ;)

550.00 answer is that

Please helped this is for my math final.
12. Consider the inequality |x|≤8.
Express the solution using interval notation.

Answers

Answer:

[-8,8]

Step-by-step explanation:

The two-way table below shows the number of students in a school who like mathematics and/or physics: Like Mathematics Do Not Like Mathematics Total Like Physics 15 20 35 Do Not Like Physics 5 25 30 Total 20 45 65 How many more students like physics than mathematics? (5 points) Group of answer choices 10 15 20 25

Answers

Answer:

21

Step-by-step explanation:

9/10/21

Help me please I don’t understand this one

Answers

Answer:

∠Y is the smallest angle measure.

The correct answer is B

the correct answer is b

A circle has a circumference of
3.14
3.143, point, 14 units.
What is the diameter of the circle?

Answers

Answer:

Hope this helps you

The diameter is 1 unit

Step-by-step explanation:

The circumference is 3.14 units

C = pi * d

Using 3.14 for pi

3.14 = 3.14 d

Divide each side by 3.14

3.14/3.14 = 3.14 d/ 3.14

1 =d

The answer is D hope this helps u:D

Hurry Asap I Will Give Brainliest!!

Answers

Answer:

3, 4

Step-by-step explanation:

Answer: 3 and 4
Step by step

Helppp! what are the answers

Answers

Answer:

5.4 inches 0.15 yards

Step-by-step explanation:

hope it's helpful

0.45 ft = 5.4 in
0.45 ft = 0.15 yd

Multiply length in feet by 12 to get length in inches.
Divide length in feet by 3 to get length in yards.

58. A standard six-sided die is rolled.
What is the sample space of numbers rolled?

Write your answers on the same line, and separate your answers with commas.

Answers

Answer:

6

Step-by-step explanation:

total number of outcomes is 6 (1,2,3,4,5, or 6) so sample space is 6

I WILL REWARD BRAINLIEST

Answers

Answer:

It is 65 in.

Step-by-step explanation:

62 is the median, and 66 is the mode. 65 is right between 62 and 66.

it is 65 in for the answer

If two sectors have an area of 12π square units, and one sector is from a circle with radius 6 units, while the other is from a circle with a radius of 4 units, how do the central angles for these sectors compare?

Answers

Answer:

Thus, the ratio of the central angles is 4 : 9.

Step-by-step explanation:

Area, A = 12 π square units

radius, R = 6 units

radius, r = 4 units

Area of sector is given by

[tex]A=\frac{\theta }{360}\times \pi r^{2}[/tex]

For first sector

[tex]12\pi=\frac{\theta }{360}\times \pi \times 6^{2}\\\\\theta = 120^{o}[/tex]

For second sector

[tex]12\pi=\frac{\theta' }{360}\times \pi \times 4^{2}\\\\\theta' = 270^{o}[/tex]

So, the ratio is

[tex]\frac{\theta}{\theta'}=\frac{120}{270} =4 : 9[/tex]

Answer:

4 : 9

Step-by-step explanation:

Given:

Two sectors, each has an area of 12pi, but with radii r1=6 and r2=4 units.

Find ratio of central angles.

Solution:

Let A = central angle

Area of a sector = pi r^2 (A/360)

Since both sectors have the same area,

pi r1^2 (A1/360) = pi r2^2 (A2/360)

simplifying

A1 r1^2 = A2 r2^2

Therefore

A1 : A2  = r2^2 : r1^2 = 4^2 : 6^2 = 4 : 9

Can someone please help with these two questions?

Answers

Question two is C. Question three is B

Answer:

For question 2, it is C) 3a.

For question 3, it is B) 3.

Step-by-step explanation:

For question 2, we are given that Mary's age is a and her mother's age is 3 times as old as Mary. The key word is "times" so this means that the expression can be written as 3a or 3 * a.

For question 3, the question asks for the greatest number that divides evenly into both 42 and 81. Using simple math, C and D automatically elliminates itself because one of the numbers divided gives a whole and the other gives a decimal. All is left is A and B. Obviously, a number divided by one will by itself so it stays even either way and the two numbers divided by 3 will give us two whole numbers and 3 is the greatest possible number so that concludes that it is B.

find the perimeter of this scalene triangle. 51/8 2/1/2

Answers

Answer: 19 1/2

Step-by-step explanation:

For perimeter you just add the sides up.
2.25 + 7.5 + 9.75 = 19.5
**19.5 ft**

In a packet of mixed candies there are 2 fruit centers for every 3 caramel centers. There are 30 candies in the packet. How many caramel centers are there?

Answers

Answer:

18 Caramel Centers

Step-by-step explanation:

Solution

So first off, we can group 2 and 3 toghether to make one "packet" with 5 candies in it. Now, we can divide 5 by 30 and get 6. Now we know how many packets/candies there are. After that, we can multiply 6 with 3 to get 18 caramel centers.

Verification:

2 x 6 = 12

3 x 6 = 18

12 + 18 = 30 ✅

they are 18 caramel centers
Hope I helped

please help me on this question

Answers

I think Answer is -3.5 Or -7/2

REWARDING BRAINLY FOR CORRECT ANSWER
Study the list of numbers shown.
2 , 5 , 7 , 4 , 5 , 9 , 2 , 5 , 1 , 8 , 4 , 4 , 7 , 9 , 4
What is the median of these 15 numbers?
9
7
5
4

Answers

Answer:

1, 2 , 2,  4 , 4 , 4 ,4 , 5 , 5 , 5 , 7 , 7 , 8 , 9 , 9

Step-by-step explanation:

5. The median is 5.

(20r-8) divided by 4

Answers

Answer:

5r - 2

(20r - 8) ÷ 4

= (20r : 4) - (8 : 4)

= 5r - 2

#CMIIW

Please help me again lol I can't do math

Answers

Answer:

a) Thomas is 36 years old ( 3x12= 36 )

b) Alexis is 31 years old ( 36-5=31 )

c) 19 years older ( 31-12=19 )

A) 36
B) 31
C) 19
That’s it

Kim deposited $1,422 into a savings account. After 5 years, she had a total of $1,635.30 in her account. What is the interest rate?

With step by step explanation = Brainliest

Answers

Answer:

don't know

Step-by-step explanation:

ok please mark mr brainlist

Answer:

3%

Step-by-step explanation:

Interest rat is calculated by using the equation A = P(1 + r)^n

A is the amount after interest. Here, it is 1635.30

P is the principal, or base, amount. Here, it is 1422

r is the rate at which there is interest. It is what we need to find out.

n is the amount of years interest is calculated for. Here, it is 5

Now that we have everything, we calculate:

1635.30 = 1422(1 + r)^5

Now we have to get r on one side of the equation by itself:

Divide both sides by 1422:

1635.30/1422 = (1 + r)^5

5√(1655.30/1422) = 1 + r

5√(1.16406469) - 1 = r

Now r is on one side of the equation.

The 5th root of 1.16406469 is 1.03084987

1.03084987 - 1 = 0.0308, so it is 3%

The 5√ is the 5th root of the numbers

Or it's 2.835 percent I don't know

What would this equation be in vertex form? Show all steps please! :)
y2 + 16x - 4y = -20

Answers

Answer: Answer is in the attachment xoxo

Step-by-step explanation:Subtract

y

2

y

2

 from both sides.

16

x

4

y

=

20

y

2

16x−4y=−20−y

2

2 Factor out the common term

4

4.

4

(

4

x

y

)

=

20

y

2

4(4x−y)=−20−y

2

3 Divide both sides by

4

4.

4

x

y

=

20

y

2

4

4x−y=

4

−20−y

2

4 Add

y

y to both sides.

4

x

=

20

y

2

4

+

y

4x=

4

−20−y

2

+y

5 Divide both sides by

4

4.

x

=

20

y

2

4

+

y

4

x=

4

4

−20−y

2

+y

6 Simplify  

20

y

2

4

+

y

4

4

4

−20−y

2

+y

  to  

20

y

2

4

4

+

y

4

4

4

−20−y

2

+

4

y

.

x

=

20

y

2

4

4

+

y

4

x=

4

4

−20−y

2

+

4

y

7 Simplify  

20

y

2

4

4

4

4

−20−y

2

  to  

20

y

2

4

×

4

4×4

−20−y

2

.

x

=

20

y

2

4

×

4

+

y

4

x=

4×4

−20−y

2

+

4

y

8 Simplify  

4

×

4

4×4  to  

16

16.

x

=

20

y

2

16

+

y

4

x=

16

−20−y

2

+

4

y

3:10 = 3/10=N/100
​ help asap

Answers

Answer:

N = 30

Step-by-step explanation:

3: 10 = 3/10 = 0.3

0.3 * 100 = 30 = N

Answer: 30/100

Step-by-step explanation: 3:10=3/10. N/100 Divided by 10 is N/10; multiply 3/10 by 10.

Can someone help me pleaseeee

Answers

Yes! The answer is C.
i believe the answer is c

help meee plzz i need help

Answers

Answers:

a)  15.6b)  12c)  36d)  51.6

============================================

Explanations:

Part (a)

The area of a triangle formula is A = 0.5*b*h where b and h are the base and height. You could use 1/2 in place of the 0.5

We're focused on the blue shaded triangle, which is the "floor" so to speak of this pyramid. To find the floor area, we will use b = 6 and h = 5.2 and we get

A = 0.5*b*h = 0.5*6*5.2 = 15.6

For this problem, all areas are in square inches as denoted by the [tex]\text{in}^2[/tex]

If you're curious where the b = 6 came from, it's because all sides of the equilateral triangle are the same length.

Note: The base and height of a triangle are always perpendicular.

----------------------

Part (b)

Focus on any single non-shaded triangle. Let's say we focus on the upper triangle. We have b = 6 and h = 4. It then leads to the area A = 12 sq in. This is the area of one lateral face.

------------------------

Part (c)

The instructions state that the lateral faces are congruent triangles, aka they are identical triangles. So that means we have three copies of the same area we found back in part (b), which was 12. Therefore, the lateral surface area is 3*12 = 36 square inches. As your teacher mentions, we do not include the shaded triangle as part of this result (that will happen in part d below).

------------------------

Part (d)

We add the results of parts (a) and (c) together to get the full surface area. This is the total area of the flat net, and it corresponds directly to the full surface area because we fold up the 2D figure to get the 3D one.

The total surface area is 15.6+36 = 51.6 in^2

--------------------------

Side note: Another name for "triangular pyramid" is "tetrahedron". The "tetra" means "four", and "hedron" means "face".

Answer:

51.6

Step-by-step explanation:

7th grade math please help

Answers

All angles adds up to 180 degrees.
Subtract 108 from 180 and you will recieve 72

72 and 108

Answer:

144 and 36

Step-by-step explanation:

I found the same question on brainly the explanation is on there!

https://brainly.com/question/15640770#:~:text=Answer%3A,Step%2Dby%2Dstep%20explanation%3A&text=To%20find%20the%20other%20angle%2C%20simply%20subtract%20144%20from%20180.

Hurry I Will Give You Brainliest!!

Answers

for question 1, Angle ABC combines to form angle ABD

for question 2, it’s literally addition. 40 + 25 = 65

for question 3, it’s just subtraction. 70 - 45 = 25.

hope this helps!

While sitting on a park bench, Tanisha counts that 16 out of 20 people who walk by her have a pet with them.

Part A. What is the probability that a person who walks by Tanisha has a pet?

Part B. What is the probability that a person who walks by her does not have a pet?

Answers

Answer:

the answer would be-

Step-by-step explanation:

The probability that a person who walks by Tanisha has a pet- 0.8

The probability that a person who walks by Tanisha does not have a pet- 0.2

What is probability?

Probability is a mathematical term, which can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.

Probability of Event = Favorable Outcomes/Total Outcomes = X/n

Part A. The probability that a person who walks by Tanisha has a pet can be calculated by dividing the number of people who have a pet by the total number of people who walk by her. In this case, 16 out of 20 people have a pet, so the probability is:

P(having a pet) = 16/20 = 4/5 = 0.8

So, the probability that a person who walks by Tanisha has a pet is 0.8 or 80%.

Part B. The probability that a person who walks by Tanisha does not have a pet can be calculated by subtracting the probability of having a pet from 1. That is:

P(not having a pet) = 1 - P(having a pet)

P(not having a pet) = 1 - 0.8

P(not having a pet) = 0.2

So, the probability that a person who walks by Tanisha does not have a pet is 0.2 or 20%.

To know more about Probability check:

https://brainly.com/question/30034780

#SPJ

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