Mathematics High School

Evaluate x + 3y when x = 4 and y = 5
*Please show how you got your answer*

Answers

Answer 1

Answer:

19

Step-by-step explanation:

x + 3y

4 + 3 (5)

4 + 15

=19

Related Questions

k ( n ) = | n + 1 | − 1 ; Find k ( 4 )

Answers

Answer:

4

Step-by-step explanation:

PLEASE HELP WILL GIVE BRAILEST TO CORRECT ANSWER!!!!
Marcus states that the polynomial expression 3x3 – 4x2y + y3 + 2 is in standard form. Ariel states that it should be y3 – 4x2y + 3x3 +2. Explain which student is correct and why.

Answers

Answer:

opps type miss

Step-by-step explanation:

miss type

A water taxi travels around an island in a path that can be modeled by the equation y=0.5(x-14)^2 . A water skier is skiing along a path that begins at the point (6,4) and ends at the point (8,4)
Write a system of equations to model the problem.
Is it possible that the water skier could collide with the​ taxi? Explain

Answers

Answer:

 

A water taxi travels around an island in a path that can be modeled by the equation y =0.5(x - 16). A water skier is skiing along a path that begins at the point (6,6) and ends at the point (8. - 4).

a. Write a system of equations to model the problem.

b. Is it possible that the water skier could collide with the taxi? Explain

Step-by-step explanation:

helppp!!
right answers only please!

Answers

Answer:

Y-intercept

Step-by-step explanation:

The y-intercept is the part of the line that crosses the y-axis.

The red dot (where the arrow is pointing to) is the y intercept

Michelle has a round lamp to which she wants to add beads. The diameter is 12.2 inches. What is the circumference?

Answers

Answer: 38.34 inches

Step-by-step explanation:

The lamp is round which means that the circumference can be calculated by the formula:

= Pie * diameter

Pie = 22/7

Diameter = 12.2

Circumference = 22/7 * 12.2

= 38.34 inches

the difference of 2x and 15 is less than or equal to the sum of 4x and 17​

Answers

Step-by-step explanation:

the difference of 2x and 15 is less than or equal to the

sum of 4x and 17

i.e.,

2x - 15 < 4x + 17

if you want to find ahead then

2x - 15 = 4x + 17

2x - 4x = 17 + 15

- 2x = 32

x = - 32/2

x = - 2

I need help with this question...

Answers

Answer:15

Step-by-step explanation:

we know from the markings on the sides of the triangle that this is an equilateral triangle. The angles of an equilateral triangle are all equal. because of this, we can put these two equations to equal each other
since we are solving for y, we want to isolate y on one side.

6x+6=5y+10
-10 -10
6x-4=5y
divide both sides by 5

6/5x-4/5=y


1. When the point is reflected over x-axis, what will
the new coordinates of the new point be?

Answers

Answer:

(x , y) ----> (-x , y)

Step-by-step explanation:

(x , y) ----> (-x , y)

Example for 1. :

(-4,2) ---> (4,2)

A number pattern was created by dividing the previous term by 3. If the starting value for the pattern was 135, which of the following shows the resulting pattern?
A.
135, 45, 30, 5...
B.
135, 45, 15, 5...
C.
135, 45, 15, 2...
D.
135, 45, 30, 25...

Answers

Answer:

B. 135, 45, 15, 5...

Step-by-step explanation:

I'll go in order from 135 using the pattern shown (tᵇ/3)

135 / 3

135 = 120 + 15

135/3 = (120/3) + (15/3)

135/3 = 40 + 5

135/3 = 45

All four answer choices show this, so no elimination yet.

45 / 3

45 = 30 + 15

45/3 = (30/3) + (15/3)

45/3 = 10 + 5

45/3 = 15

A and D show 30 as term 3, so they are out.

15 / 3

15/3 = 5

C shows 2 as term 4, so that is also out.

This leaves B as the correct answer.

I WILL GIVE YOU BRAINLY PLSS


What is the solution of x + 6 11
C. x –1

PLSS SHOW YOUR WORK PLSS

Answers

Is it 611 or is there something in between

Answer: x < -1

Step-by-step explanation:

x + 6 < 5

x + 6 = 5

x = -1

x < -1

Now try to prove its correct

A number less than -1 is -2 so we'll try that.

x + 6 < 5

(-2) + 6 < 5

4 < 5

We can tell after substituting -2 for x, that the answer is correct

Oh and I changed the less than sign to an equal sign so it's easier to solve.

Does that help?

Find the length of the hypotenuse left

Answers

Answer: 2.45

Step-by-step explanation:

I use pythagorean theorem after i found the total of leg A and leg B

A rectangle has vertices (j,k) , (l,k) and (l,l). Find the fourth vertex

Answers

Answer:

(j,l)

Step-by-step explanation:

It's the only combination left

Solve for the missing variable

Answers

Answer:

4x+4=5x-8

4x-5x+4=-8

4x-5x=-8-4

-x=-8-4

-x=-12

x=12

Step-by-step explanation:

1.8/0.087-0.947+2.2/0.044
​

Answers

Answer:

The answer is 2022537/290000

problem:

Equivalent expression for m-(8-3m)

Answers

Answer:

4m-8

Step-by-step explanation:

answer

Answer:

4m - 8

Step-by-step explanation:

Given expression,

→ m - (8 - 3m)

Simplifying the expression,

→ m - (8 - 3m)

→ m - 8 + 3m

→ 4m - 8

→ 4(m - 2)

Hence, answer is 4m - 8.

construction worker’s planned to secure a tall pole using two cables attached to the pole at a point 12 m above the ground as shown in the diagram below.
based on the information in the diagram which value represents the total length of the cable that is needed to secure the pole?

Answers

Answer:(24+12\3)m

Step-by-step explanation:

HELP!!!!! Suppose the distance between two cities on a map is 5.2in the scale is 1 in =80miles what's the actual distance between the cities.

A) 408 miles
B) 400 miles
C) 424 miles
D) 416 miles

Answers

Answer:

80*5.2= 416

D: 416 miles

A store is selling T-shirts. Which is the best deal?

8 for $26
5 for $30
4 for $15
12 for $39
10 for $45

Answers

divide cost by quantity. The lowest rate is the best buy:

26/8 = 3.25 each

30/5 = 6.00 each

15/4 = 3.75 each

39/12 = 3.25 each

45/10 = 4.50 each

The 8 for 26 and the 12 for 39 are both the same price each and are the better buys.

HELP PLEASE! DELTA MATH! THANKS!
Last year at a certain high school, there were 140 boys on the honor roll and 68 girls on the honor roll. This year, the number of boys on the honor roll increased by 5% and the number of girls on the honor roll increased by 25%. By what percentage did the total number of students on the honor roll increase? Round your answer to the nearest tenth (if necessary).

Answers

Answer:

11.5

Step-by-step explanation:

Find new values:  

140(1+0.05)=147  

68(1+0.25)=85

Last Year This Year

Boys 140 147

Girls 68 85

Total 208 232  

Find overall increase:  

208(1+r)=232

1+r=1.115385  

r=0.115385

Final Answer: 11.5%

The total number of students on the honor roll increased by 11.5%.

What is the percentage?

The percentage is defined as a ratio expressed as a fraction of 100.

The percentage increase in the number of boys on the honor roll is 5%, which means that the number of boys on the honor roll this year is 1.05 times the number of boys on the honor roll last year:

1.05 x 140 = 147

The percentage increase in the number of girls on the honor roll is 25%, which means that the number of girls on the honor roll this year is 1.25 times the number of girls on the honor roll last year:

1.25 x 68 = 85

Therefore, the total number of students on the honor roll this year is:

147 + 85 = 232

The percentage increase in the total number of students on the honor roll is:

((232 - 208) / 208) x 100% = 11.5385%

Rounding to the nearest tenth gives an answer of 11.5%.

Therefore, the total number of students on the honor roll increased by 11.5%.

Learn more about percentages here:

brainly.com/question/24159063

#SPJ3

I need help like NOW!

Answers

Answer:

5t

Step-by-step explanation:

kinda self explanatory

dividing it, adding it, and subtracting it wouldnt make sense for the equation youre trying to solve.

Answer:

5t

Step-by-step explanation:

Can someone help me please

Answers

Answer:

-15

Step-by-step explanation:

it’s b! because it is a negative and has no absolute value sign.

the helmet sheena would like to buy costs $4 less than 4 times the amount she saved . the helmet costs $60 .how much mony does sheena save ?

Answers

Answer: 20

Step-by-step explanation:

After the 4th half life how much of the sample is left if the mass is 100g.

Answers

Answer:

[tex]\huge\boxed{\sf 6.25 \ g}[/tex]

Step-by-step explanation:

After every Half life , Half of the mass is left.

After 1st Half life = 100 g / 2 = 50 g

After 2nd Half life = 50 / 2 = 25 g

After 3rd Half life = 25 / 2 = 12.5 g

After 4th Half life = 12.5 / 2 = 6.25 g

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

I need help ASAP I’ll mark brainliest help please #1

Answers

Answer:

B

Step-by-step explanation:

8-5=3, 1-(-7)=8, 3^2+8^2=73, and the square root of 73 is 8.5

Please help with these problems..
at least one.

Answers

Answer:

4(5q-8), q=6

4(5(6)-8)=

4(30-8)=

4(22)=

88

r+(-8)/2. r=12

12+(-8)/2=

4/2=

=2

(11b+4)/9. b=7

(11(7)+4)/9=

(77+4)/9=

(81)/9=

9

Step-by-step explanation:

-2x + y = 1.3
2(0.5x - y) = 4.6

Answers

Answer:

x=-2.4

y=-3.5

Step-by-step explanation:

PLS LOOK AT THE PIC AND HELPPP PLSSS

Answers

Answer:

4x +  -6.03 = 2.07

Step-by-step explanation:

first one:

there are four big white boxes so that equals 4x

6 negative ones so its -6

3 negative 0.1 so its -0.3

add up 06 and -0.3 and that's -6.03

second one:

there are two squares that each equal one so that would be two and add the 7 0.1's and that will be 2.07

Help please
Which graph does not represent a function?

Answers

The first one is the one that doesn’t represent a function
The answer is A trust me.

(4) B is the midpoint of AC, D is the midpoint of CE, find BD.

Answers

Answer:

A :10.5 is the answer

Step-by-step explanation:

i need help someone help pls and thx

Answers

i believe 12 feet , if im wrong im sorry!
The Answer is 12 feet because that is the highest point that the line/curve on the graph goes.
Other Questions
In one class, there are 2 of every 8 students in the class chewinggum. If there are 32 students in the class, how many students arechewing gum? Helpppp. Pleaseee. Thankssss 5x - 3 (x+3) = what to have infinitely many solutions exact value of tan 5pi/12 A bowl holds 5 cups of water. How many cups will it take to fill up the bowl? List three ways that we can help our friends family members stay optimistic during this period of social distancing focus on what we can be grateful for and what we can look forward to in the future? What is the message of the text? How does it reflect the author and audience? What is the name of the image below? A coordinate plane with Number of Text Messages on the x-axis and Number of Minutes Used on the y-axis, with points plotted at, (10, 20), (20, 40), (30, 60), and (40, 80).A prepaid cell phone charges a preset number of minutes to use text messaging. The graph represents y, the number of minutes used for x, the number of text messages sent and received. Is there a direct variation? Which equation represents the relationship?Yes, y = 2x.Yes, y = 20x.No, y = x + 10.No, y = x + 20. Plssssss Help!!!Aesops fables usually end with a lesson about how to act. Describe have a Greek family might tell the stories to educate their children. Use slow and steady wins the race in your description. Tyree and four friends go to the movies. Each person buys a movie ticket for $7, a snack for $5, and a drink for $2. Write an expression for the total cost of the trip to the movies. Then find the total cost. Why are some pathogenic bacteria able to make toxins? Simplify 8(x - 4).8x - 4x - 328x - 32x - 4 An SAT prep course claims to improve the test score of students. The table below shows the scores for seven students the first two times they took the verbal SAT. Before taking the SAT for the second time, each student took a course to try to improve his or her verbal SAT scores. Do these results support the claim that the SAT prep course improves the students' verbal SAT scores?Let d=(verbal SAT scores prior to taking the prep course)(verbal SAT scores after taking the prep course)d=(verbal SAT scores prior to taking the prep course)(verbal SAT scores after taking the prep course). Use a significance level of =0.1 for the test. Assume that the verbal SAT scores are normally distributed for the population of students both before and after taking the SAT prep course.Student 1 2 3 4 5 6 7Score on first SAT 500 380 560 430 450 360 560Score on second SAT 540 470 580 450 480 400 600Required:a. State the null and alternative hypotheses for the test.b. Find the value of the standard deviation of the paired differences. Round your answer to one decimal place.c. Compute the value of the test statistic. Round your answer to three decimal places.d. Determine the decision rule for rejecting the null hypothesis. Round the numerical portion of your answer to three decimal places.e. Make the decision for the hypothesis test. Could somebody pls help me with this question In the process of respiration, organisms generallya. use oxygen and give off carbon dioxideb. use nitrogen and give off carbon dioxidec. use carbon dioxide and give off oxygend. use carbon dioxide and give off nitrogen What is the greatest common factor of 3 and 6?361836 The length of a rectangle is 2 units more than the width. The area of the rectangle is35 units. What is the width, in units, of the rectangle? List several social injustices described in I sit and Look Out." Humans and dogs evolved from a common ancestor. Which pieces of evidence would support this? Check all that apply. Both of their adult forms look very similar. They both had a tail as an embryo. Their arm and leg structure is similar, but may have a different function. There are fossils of an organism that is half man, half dog in the fossil record. Both had gill slits when they were born.