Mathematics High School

8x+7x+5+4= 39 pls help quickly

Answers

Answer 1

Answer:

x = 2

Step-by-step explanation:

8x + 7x + 5 + 4 = 39

15x + 9 = 39

15x = 30

x = 2

Brainly plz :))

Related Questions

I don't understand this, could somebody tell me what to do?

Answers

Answer:

basically you take the original price aka the first thing so the price of the obj and you increase or decrease by the following percent.

Step-by-step explanation:

(if u dont get how to actually do the math just search up how to increase and decrease by fractions cause its kinda too long for me to explain) i hope this kinda-ish helped.

The slope below the line is -1/7. Write a point-slope equation of the line using the coordinates on the labeled point.

Answers

Honestly bro I wish I could help you but I just hope someone comes along and can help. Good luck!

Answer: y – 3 = –1/7(x – 3)

Please help I will mark you as brainlist it’s emergency

Answers

Answer:

Step-by-step explanation:

jayfeather friend me

Answer:

35+27n

Step-by-step explanation:

hope this helps lol D is the correct answer

I need help with this please

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

An airplane flies with a constant speed of 620 miles per hour. How long will it take to
travel a distance of 310 miles? Give your answer in minutes or hours.

Answers

Answer:

30 minutes

Step-by-step explanation:

Alright lets start by laying out what the problem gives us :

A plane flies 620 mph.

It is asking how long it will take to travel 310 miles.

We need to give our answer in minutes or hours.

So lets take mph and look at the full meaning "Miles per hour"

An hour has 60 minutes in it.

So really it is saying miles per 60 minutes as well as miles per hour

So you could say the plane is traveling 620 miles every 60 minutes.

So now lets look at the number 310.

Just looking at it I can tell you that 310 looks very close to half of 620, in fact it is exactly half!

So lets divide the 620 mph by the 310 miles it is asking and we get 2! Proving that 310 is half of 620.

Alright now lets divide both the number of miles and number of minutes :

620 miles per 60 minutes

divided by 2 both miles and minutes

310 miles per 30 minutes

So this is your answer. After this you get that it would take 30 minutes to travel 310 miles in a plane going 620 miles per hour!

I hope this helps and I could help you understand it. :)

If you have any questions feel free to comment or dm me.

Mary and Alice are playing a card game. Mary has 21 points. She has 9 points less than Alice.

How many points does Alice have?

Enter your answer in the box.

_______ points

Answers

I think Alice would have 30 points since 21 plus 9 is 30

Answer:

Step-by-step explanation:

I love math its my fav subject. Facts: P:21+9=30. The check, 30-9=21.

Which of these is a trinomial?
O A. x + 2y2 - 7
B. 5xy
C. 2x3 - 7y3
D. 2x - 7

Answers

Answer is Opition A

That is x + 2y2 - 7

Hope it is useful

Answer:

x + 2y2 - 7

Step-by-step explanation:

Ape-x

-4x-12<12 this is equations and inequalities and I really need help LOL

Answers

Answer:

[tex]x>-6[/tex]

Step-by-step explanation:

[tex]-4x-12<12[/tex]

[tex]-4x-12+12<12+12[/tex] (Add [tex]12[/tex] to both sides of the inequality to isolate [tex]x[/tex])

[tex]-4x<24[/tex] (Simplify)

[tex]\frac{-4x}{-4}<\frac{24}{-4}[/tex] (Divide both sides of the inequality by [tex]-4[/tex] to get rid of [tex]x[/tex]'s coefficient)

[tex]x>-6[/tex] (Simplify, don't forget to flip the sign of the inequality when multiplying or dividing by a negative number)

Hope this helps!

Convert this decimal into its fractional form, simplified completely.

0.125

Answers

Answer:1/8

Step-by-step explanation:

If we divide both the top and the bottom by 5 since we know that 125 is a multiple of 5, we get 25/200. Divide both by 5 again to get 5/40 we then simplify to get 1/8.

please help, and i will mark you BRAINLIEST
Twenty less than the product of 6 and a number *

A. 20 - 6n
B. 6/n - 20
C. 6n - 20
D. 20 - 6/n

Answers

Answer:

It will option C this is correct answer 6n-20

Answer:

Step-by-step explanation:

Select all ordered pairs that correspond to input-output pairs of the function y = -9x + 3.
(8, 2)
(-33, 4)
O (5, -1)
(6, -51)

Answers

f(x) = -9x + 3

f(8) = -9(8) + 3 = -69 ❌

f(-33) = -9(-33) + 3 = -294 ❌

f(5) = -9(5) + 3 = -42 ❌

f (6) = -9(6) + 3 = -51 ✅

so, the pair is (6, -51)

help me with this pls

Answers

Answer:

I'm not sure I'm too lazy to do it lol

Step-by-step explanation:

7. Describe and correct the error made in identifying the property.
(2•x) • 4 = 2 • (x •4)
Commutative Property of Multiplication

Answers

Answer:

Step-by-step explanation:

PLEASE HELP URGENT WILL MARK BRAINIEST

Answers

Answer

DFE and FED

Step-by-step explanation:

pls help has to be in a fraction ill give brainliest.

Answers

Answer:

-5/4

Step-by-step explanation:

slope = -4 - (-29) / -10 - 10

slope = 25 / -20

slope = -5/4

I NEeD HeLp
3 and 1/2 - 1 and 1/3 HeLp ill mark you i swear

Answers

3 1/2 - 1 1/3 becomes7/2 - 4/3 which becomes21/6 - 8/6 = 13/613/6 = 2 1/6ANSWER = 2 wholes 1/6

What are one-step equations examples? (I need at least 2 examples)

Answers

Answer:

add equation k + 22 = 29 k + 22 = 29 k+22=29

Subtraction equation p − 18 = 3 p - 18 = 3 p−18=3

Step-by-step explanation:

Example 1:
-4x = -12

Example 2:
y + 14 = 20

An Italian restaurant buys 15 pounds of onions every 2 weeks. how many bags of onions will the restaurant buy in 7 weeks?

Answers

Since it is 7 weeks and they order 15 pounds every two weeks they will order 3 times. 15 times 3 is 45. Your answer is 3 bags

2 goes into the 7 weeks 3 times with a remainder of a week until they buy another 15 pounds of onions. So 15 x 3 = 45 pounds. They’ll have 45 pounds of onions in 7 weeks as on the 8th week they’ll buy another 15 pounds but the question only wants to know by the 7th week.

Four friends were born in consecutive years. The sum of their
ages is 94. What is the age of the oldest friend?

Answers

Answer:

Step-by-step explanation:

Since they were born on consecutive years, their ages are 4 consecutive whole numbers. Let the lowest age be x. Then the other ages are x + 1, x + 2, and x + 3.

Now we add the 4 expressions and set the sum equal to 94.

x + x + 1 + x + 2 + x + 3 = 94

4x + 6 = 94

4x = 88

x = 22

The youngest one is 22.

The oldest one is

x + 3 = 22 + 3 = 25

Answer: 25

what is 85% of 250$
Step by step plsss

Answers

Answer:

213

Step-by-step explanation:

Answer:

212.5

Step-by-step explanation:

250*.85 = 212.5

A popular Web site reached 7.5 million users during the week of March 7, 2011. This number represents a 33 percent increase from the week before. How many users did the Web site have the week before?

Answers

Answer:

5.7 million

Step-by-step explanation:

Let the number of users be x

x + 33% of x = 7.5 million

x + 0.33x = 7.5 million

1.33x = 7.5

x = 7.5/1.33

x = 5.7 million

The first photo in the collage is what I should make a copy of, anyone has any knowledge on how to add the numbers apart of the spreadsheet and the letters?

Answers

Answer:

uh no new copy

Step-by-steYou can make a new table to add the amounts and copy the pre-existing amounts or just add a new bar, but I guess it will be better if you just do it again.

You can make a new table and add the amounts and copy the pre existing amounts or just add a new bar but I think it would be best if you just make it again

PLEASE HELPPP ASAP I REALLY NEED HELP IVE BEEN DOING THIS FOR 3 HOURS

Answers

Answer:

Step-by-step explanation:

What is the solution to the equation 3(x+2)=12

Answers

Answer:

I think its, x = 2?

Step-by-step explanation:

Im not quite sure.... Sorry if i get it wrong

I need help plz answer

Answers

Answer:

10x+5

Step-by-step explanation:

Answer:

Step-by-step explanation:

Since this is a test/homework, I'll give a hint:

For this problem, you need to know what a coefficient, and what a constant is.

Coefficient: A number that is mutiplied by a variable

Ex: 7x

Constant: A number that is alone, decimal, fraction, etc, is not mutiplied with any number

Ex: 7x+5

Subtract f(x) and g(x) when:
f(x) = 3.2 + 2x - 8 and g(x) = 72 – 8x + 4
f(x) - g(x) =

Answers

Step-by-step explanation:

The answer is

[tex]10x - 80.8[/tex]

HELP PLEASE, I CANT FAIL THIS.

Answers

Answer:

1. complementary angles

2. vertical angles

i am not sure about question 3. 4. 5

5- (not sure)

6. c

Step-by-step explanation:

A local florist buys a dozen roses for x dollars. He plans to sell the roses at a 40 % mark-up. What expression shows the selling price of the one dozen roses?

Answers

Answer:

1.40x I think :)

A quart of milk costs $1.89. What is the total cost for 20 quarts of milk?

Answers

To do this problem, you have to multiply the number of one quart of milk by twenty to get the total cost. So, you would do 1.89 x 20, which equals 37.8. So, the total cost would be $37.80 :)

I WILL GIVE 15 POINTS IF YOU ANSWER PROPERLY I DO NOT UNDERSTAND IT PLEASE HELP

Answers

a. 17.1 in2

Go browse/search area for a kite. It is a rhombus
Find the missing sides by triangle solutions
One is a 30, 60, 90. The other is a 45, 45, 90 triangle

Answer:

17.1 in2

Step-by-step explanation:

Other Questions

HELP ME PLEASE ITS DUE IN TODAY if you could have one power what would it be? What does the phrase comply with mean as it is used in this sentence? (AKS 13)"The middle school where I teach recently changed the school lunch menu to comply with the Healthy, Hunger-Free Kids Act." (paragraph 1) A. Boycott B. Calculate C. Challenge D. Satisfy Two Drosophila with genotypes AABBCC and aabbcc are crossed to produce a heterozygous offspring, AaBbCc (the gene order is unknown). This AaBbCc Drosophila is crossed with an aabbcc Drosophila, resulting in the offspring below: Number: Phenotype: 600 ABC and abc 200 AbC and aBc 150 ABc and abC 50 Abc and aBC a. Which phenotype represents the double crossovers PLZ HELP RN I WILL GIVE YOU BRAINIEST!!! Roman was studying the life of fish, frogs, and turtles inDoyle Park. In two hours, he counted 4 more frogs thanturtles. The number of fish he counted was twice thenumber of turtles. In total, he counted 68 animals. Howmany fish were there? how many frogs were there? how many turtles were there? How did Bill Gates benefit from free enterprise? Need a paragraph please. Will give the branliest!! How did the temperature relate to the recommended temperature limit (solid horizontal red line)?Someone please just explain this question How many people ate at least 1 banana last week?Explain your answer. Jose has scored 851 points on his math tests so far this semester. To get an A for the semester, he must score at least 950 points. A projectile is shot horizontally from the edge of a cliff, 400 m above the ground. The projectile is traveling horizontally at 65 m/s the moment it leaves the cannon. What is the initial vertical velocity of the projectile? Determine the time taken by the projectile to hit the ground. How far does the projectile land from the base of cliff? Find the vertical component of the velocity just before the projectile hits the ground.What is the magnitude of the final vector velocity the instant before it hits the ground?What is the direction of the final vector velocity the instant before it hits the ground? Karma baked 48 cookies yesterday. Every hour, she bakes another batch of 12 cookies. What is the rate of change for the scenario described? (4 points) a4 b12 c60 d48 The diagram illustrates photosynthesis.Which best describes what is happening in the area marked X?Carbon dioxide enters the stem through xylem.Oxygen enters the stem through stomata.Water is carried to the leaves by stomata.Water is carried to the leaves by xylem. help!! Plsss ASAP really neee it Here is a pattern of squares:Step 1Step 2Step 3Write an equation to represent the relationship between the step number and thenumber of squares in the pattern.Briefly describe how each part of the equation relates to the pattern. help me with this to I NEED HELP PLEASE !!!! what is the gradient between (0,3) and (1,8). on the same scale for stress, the tensile true stress-true strain curve is higher than the engineeringstress-engineering strain curve. Explain whether this condition also holds for a compression test. What is 8x+2y=-10 in slope intercept form?? Find the greatest common factor of 16 17 20