Mathematics High School

1. Solve for x: 7x + 15 = 38 (5 points) (A.23/7) (B.53/7) (C.23) (D.53)​

Answers

Answer 1

Answer:

A. 23/7

Step-by-step explanation:

Step 1:

7x + 15 = 38          Equation

Step 2:

7x = 23         Subtract 15 on both sides

Step 3:

x = 23 ÷ 7          Divide

Answer:

x = 23/7

Hope This Helps :)

Answer 2

Answer:

23/7

Hope this helps..

I am not sure with the answer..

but I think it's correct

1. Solve For X: 7x + 15 = 38 (5 Points) (A.23/7) (B.53/7) (C.23) (D.53)

Related Questions

In 2003, the population of an African country was about 22.5 million people, which is 2 million more than 5 times the population 1950 Enter and solve an equation to find the approximate populationp millions) in 1950. An equation The approximate population in 1950 was people.

Answers

Answer:

Population in 1950 was 4,100,000

Step-by-step explanation:

Equation: 5x + 2,000,000 = 22,500,000

Subtract 2,000,000 from each side: 5x = 20,500,000

Divide each side by 5: x = 4,100,000

I hope this helps, please mark Brainliest, thank you!

Boris is going for a walk. He takes 4 hours to walk 6.4 miles. What is his speed?

Answers

Answer:

1.6 mph

Step-by-step explanation:

I did the math

What is a function in math?

if you explain I will make you brainiest!

Answers

Answer:

A function is an equation in math that connects an input to a given output.

Step-by-step explanation:

PLEASE HELP ASAP WILL GIVE BRAINLIEST

if y=12 when x=6/7, find x when y=16

Answers

Answer:

y = 12  when x = 6/7.

Unless you give a formula (function, or equation) that specifies their relationship, one cannot find x when y equals something else.

Step-by-step explanation:

A television is measured by its diagonal. If the height of a 70 inch television is 42 inches, what is the width? ​

Answers

Use the Pythagorean theorem:

70^2 = 42^2 + width^2

4900 = 1764 + width ^2

Subtract 1764 from both sides

3136 = width^2

Take the square root of both sides

Width = 56 inches

please helppppp will give you brainliest

Answers

Answer:9/4

Step-by-step explanation: you can write this in algebra format. It becomes -3x+10=5x-8. From there, if you know simple algebra, it is very easy, and therefore x=9/4

29 What are the solutions to 2(x - 5)2= 98?

Answers

Answer:

(x-5)²=98/2

x-5=√98/2

98/2=49

x-5=√49

= 7

x= 5 ± 7

= 12,-2

ans is C

What is the equation of the line that best fits the given data? A graph has points (1, 7), (1, 6), (2, 5), (2.5, 5), (3, 3), (4, 1). a. y = negative 5 x + 11 c. y = 3 x + 10 b. y = negative one-third x + 10 d. y = negative 2 x +

Answers

Answer:

D

Step-by-step explanation:

this is correct on edge

Answer:

D on edge

Step-by-step explanation:

ur welcome

this is due today pls help

Answers

Answer: the answer is linear

Step-by-step explanation: (not sure what functions it’s talkin about but it is linear)

Simplify -2√-45 please

Answers

Answer:

l-4l+l-3l??

Step-by-step explanation:

Answer:

[tex]-6\sqrt{5i}[/tex]

Step-by-step explanation:

[tex]\sqrt{-45} =3\sqrt{5}i[/tex]

[tex]-2[/tex] * [tex]3\sqrt{5i}[/tex]

= [tex]-6\sqrt{5i}[/tex]

pls help jdjakdhdjks

Answers

Answer:

5

Step-by-step explanation:

The value of "b" is the y-intercept. The point is (3,5). 5 is the y intercept so bb is equal to 5.

Describe a situation in which opposite quantities combine to make 0.

Answers

Hello!

Answer: A real life example would be if you would add 100 dollars in a bank account and then, subtract the 100 dollars from that account.

The equation used would be 100 + (-100) or in a simpler version 100 - 100 (They both mean the same thing!)

Hope this helps! :)))

how to convert 1 1/2

Answers

Answer:

3/2

Step-by-step explanation:

Step 1

Multiply the denominator by the whole number

2 × 1 = 2

Step 2

Add the answer from Step 1 to the numerator

2 + 1 = 3

Step 3

Write answer from Step 2 over the denominator

3/2

I play the trombone and idk what these notes are I think the first one is a second position and the second note is a fourth position but I’m not sure :(

Answers

Answer:

i found this picture on google i just looked up. it should have your answer here. i play flute, so i dont understand it all that much :/

hope this helps

second pic is a flute chart ;P

Step-by-step explanation:

What is the midpoint of the class interval 800-999?

Answers

Answer:

899.5

Step-by-step explanation:

I need help someone help quick

Answers

1. Translation
2. Rotation
3. Reflection

12 IF APOR is similar to AXYZ, which of the following statements must be true?

Answers

Answer:

F

Step-by-step explanation:

There's no Q in APOR or AXYZ

Which statement about converting metric units of measurement is true? Use the metric table to help answer the question.

Metric Table
kilo-
hecto-
deka-
unit
deci-
centi-
milli-
1,000
100
10
1
0.1
0.01
0.001
To find the number of hectometers in 87 centimeters, move the decimal point 4 units to the left.
To find the number of meters in 9,382 centimeters, move the decimal point 2 units to the right.
To find the number of kilometers in 6.39 decimeters, move the decimal point 3 units to the left.
To find the number of dekameters in 18 kilometers, move the decimal point 3 units to the right.

Answers

Answer:

To find the number of hectometers in 87 centimeters, move the decimal point 4 units to the left.

Mark me brainliest if I am right...PLEASE

Answer:To find the number of hectometers in 87 centimeters, move the decimal point 4 units to the left.

Step-by-step explanation:

What value of x makes the horizontal parts of the letter Z parallel?

Answers

Answer:

20 degrees

Step-by-step explanation:

in order for them to be parallel, the alternate interior angles must be congruent

x+20=2x

therefore x=20

2 1/7 + 3/7 (3x−5 )=−4

Answers

Answer:

x = -28/9

Or

x = -3 1/9

Answer:

-28/9

Step-by-step explanation:

2 1/7= 15/7

3/7* 3= 9/7

3/7*5= 15/7

15/7 + 9/7x - 15/7=-4

9/7x=-4

x=-28/9

How many gallons of pure water should be evaporated from 160 gallons of a solution containing 12% salt

so that the remaining solution contains 20% salt?

What are you being asked to find in this problem?

O gallons of pure water

gallons of 12% salt solution

gallons of 20% salt solution

what is the original amount of solution in gallons? a=

Answers

Answer:

66 gallons

Step-by-step explanation:

Given that initially 160 gallons of a solution containing 12% salt.

So, the initial amount of salt = 12% of 160 = 12/100 x 160 = 19.2 gallons.

Let x gallons of water get evaporated so that the remaining solution contains 20% salt.

The remaining amount of solution = 160-x gallons.

As the initial amount of salt is still in the solution which is equal to 20% of the remaining solution, so

19.2 = 20% of (160-x)

[tex]\Rightarrow 19.2 = \frac {20}{100}\times (160-x) \\\\\Rightarrow 19.2 = \frac {1}{5}\times (160-x) \\\\\Rightarrow 19.2 \times 5= 160-x \\\\\Rightarrow 96= 160-x \\\\\Rightarrow x= 160-96 \\\\[/tex]

[tex]\Rightarrow x= 66[/tex] gallons

Hence, 66 gallons of water must be evaporated to get a 20% salt solution.

Answer:

its A, "gallons of pure water"

Step-by-step explanation: just did it on edg and got it right

Click on the measure of the angle.

Answers

Answer:

Wow that's hard to look at. But, when zooming in, we can see that the arrow is closer to 116 degrees, so that is the answer.

Step-by-step explanation:

Notice that the angle/arrows is opening up from right to left, so it will be greater than 90 degrees. The arrow is a little bit more than 115 degrees, so it has to be 116 degrees.

#teamtrees #WAP (Water And Plant)

HELP PLEASE ILL GIVE BRAINLIEST!!!!!!!!!

Answers

Nope it’s not functional

Answer:

the first questions answer is yes the seconds is no

HAVE A NICE DAY!!!

Please HELP ASAP 31 points on

Answers

Answer:

It's way too small and I can't read it...

Step-by-step explanation:

Cross multiply
23/3 / 21=

Answers

Answer:

161

Step-by-step explanation:

cancel 3 and 27 that gives u 7.

multiply 23 and 7 that gives u 161

Which graph represents a linear function?

Answers

Answer:

That graph in the picture is not linear

Step-by-step explanation:

The graph does not go up or go down the same each unit

Answer:

not linear

Step-by-step explanation:

if it was linear there would be a diagonal straight line.

linear indicates there is a consistent ratio of x values and y values.


A chorus teacher is arranging students on bleachers for a performance. The 1st row of the bleachers has 10 students, the 2nd row has 14 students, the 3rd row has 18
students, and the 4th row has 22 students.
Assuming the trend continues, how many students will be on the 6th row of the bleachers?

Answers

Assuming the trend continues, there will be 30 students on the 6th row of the bleachers.

According to the question,

We have the following details:

Number of students in 1st row = 10

Number of students in 2nd row = 14

Number of students in 3rd row = 18

Number of students in 4th row = 22

Now, if we carefully observe the arrangement made by the chorus teacher, we will observe that the arrangement has a pattern.

It is to be noted that with each row 4 students are increasing.

For example, in 2nd row the number of students is 14 (4 more than the previous row), in 3rd row the number of students is 18 (4 more than the previous row), etc.

Now, we have to find the number of students in 6th row. So, first we need to find the number of students in 5th row.

Number of students in 5th row = number of students in 4th row + 4

Number of students in 5th row = 22+4

Number of students in 5th row = 26

Now,

Number of students in 6th row = number of students in 5th row + 4

Number of students in 6th row = 26+4

Number of students in 6th row = 30

Hence, there are 30 students on the 6th row of the bleachers.

To know more about row here

https://brainly.com/question/27917476

#SPJ1

A golfer hit a ball 230 m from the tee to the

green. The ball traveled south and landed on the

green in 4 seconds. What was the ball's speed?

Answers

Answer:

The ball's speed is 57.5 m/s

Step-by-step explanation:

Given;

distance between the tee and the green, d = 230 m

time taken for the ball to travel from the tee to the green, t = 4 seconds

The speed of the ball is given as;

speed = total distance traveled / total time taken

speed = 230 m / 4 s

speed = 57.5 m/s

Therefore, the ball's speed is 57.5 m/s

Find the value of c that makes x^2+20x+c a perfect square trinomial. And then write expression as the square of a binomial.

Answers

Here you go!!! Hope this helps

The value of the variable 'c' is 10. Then the perfect square trinomial is (x + 10)².

What is a perfect square trinomial?

A perfect square trinomial formulation can be created by taking the binomial equation's squared. If and then only if a trinomial satisfying the criterion b² = 4ac has the form ax² + bx + c, it is indeed a perfect square.

The trinomial is given below.

⇒ x² + 20x + c

The value of 'c' must be equal to half of the square of the coefficient of x. Then we have

c = [1/2 × (20)]²

c = (10)²

c = 100

Then the perfect square trinomial is written as,

x² + 20x + 100 = (x + 10)²

The value of the variable 'c' is 10. Then the perfect square trinomial is (x + 10)².

More about the perfect square trinomial link is given below.

https://brainly.com/question/16615974

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In parallelogram LMNO, LM = 4.12, MN = 4, LN = 5, and OM = 6.4. Diagonals and intersect at point R. What is the length of ? A. 2 B. 2.06 C. 2.5 D. 3.2 E. 12.8

Answers

Answer:

the answer is 3.2

Step-by-step explanation:

Answer:

3.2

Step-by-step explanation:

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