Mathematics High School

pls hurry will mark brainliest if you show work pls

x + 10 = - x + 28

Answers

Answer 1

Step-by-step explanation:

2x = 18

Divide both sides by 2

x = 9

Related Questions

Given h(x)=-x+5, solve for x when h(x)=3. PLEASE I NEED HELP ILL GIVE BRAINLIEST.

Answers

[tex]\text{Given that,}\\\\h(x) = -x+5\\\\\implies 3 = -x +5\\\\\implies x = 5 -3 =2[/tex]

solve: 3(2x+7) S 6(x-4)

Answers

Answer:

no solution

Step-by-step explanation:

3(2x + 7) ≤ 6(x - 4) ← divide both sides by 3

2x + 7 ≤ 2(x - 4)

2x + 7 ≤ 2x - 8 ( subtract 2x from both sides )

7 ≤ - 8 ← False statement

This means the inequality has no solution

Two-Variable Statistics:Question 2

You obtain a correlation value of r = -0.744 when you

analyze the relationship between the time it takes

someone to swim a mile and her heart rate at the end of

the swim. Choose the word completes this interpretation

of the correlation value: The correlation between the time

it takes to swim and heart rate is ___ and ___

Answers

I think it is your second option 5

There are 30 kilograms of 10 percent apple juice how much more aplle juice does it need to get to 25 percent?

Answers

Answer:

45 kg of apple juice

Step-by-step explanation:

Divide 25% by 10%

The answer you get multiply it by 30

Take the answer you get subtract the 30 kg

Grocery Store A is selling bananas for $0.75 for 12 pound. Grocery Store B is selling 5 pounds of bananas for $3.75.
Which store is offering the best unit rate? Show your work.

Answers

Step-by-step explanation:

3.75/5=0.75

75 cents per banana for B

0.75/12=0.0625

0.0625 per banana for A

grocery a has the best and lowest unit price.

Identify the error and fix the mistake

Answers

Answer:

x = (9 ±√201) ÷ 12

Step-by-step explanation:

6x² -5x -9 = 0 ( rearranged)

a = 6 b = -5 c = -9

- - 9 = 9

-9² = 81 (the 81 must be positive, this is one error)

-4 x 6 x -5 = 120 ( the 5 must be a minus number, this is one error)

120 + 81 = 201

x = (9 ±√201) ÷ 12

US
Evaluate the following
expression using x = 10:
5x + 31

Answers

Answer:

The value is [tex]81[/tex]

Step-by-step explanation:

We need to find value of [tex]5x+31[/tex] when [tex]x=10[/tex]

We have

[tex]5\times10+31=50+31\\\\=81[/tex]

A coffee pot holds 3 quarts of coffee. How much is this in cups?

Answers

Answer:12 cups

Step-by-step explanation:

because 1 quart is equal to 4 cups multiply by 3

Evaluate the expression when B=7 c=-7. c-6b

Answers

Answer:

7 - (6 x 7) = -35

Answer:

-7-6(7)= 35

7 - (6 x 7) = 35

Write the equation of a line that passes through the point (-1,2) that has a y-intercept of (0,-1).

PLS HELP QUICK I NEED TO UNDERSTAND THIS I HAVE A FINAL TMRW

Answers

Answer:

The equation of a line: y = ax + b

<=> 2= -a +b => a= b - 2 (1)

<=> -1=b (2)

from (1), (2) => b= -1; a = -3

Step-by-step explanation:

Please Help
Identify the underlined place in 81.7277. Then round the number to that place.
Underlined place is 2/Two

hundredths; 81.72

thousandths; 81.73

thousandths; 81.72

hundredths; 81.73

Answers

Answer:

hundredths; 81.73

Step-by-step explanation:

If the number underlined is two, then it will rounding to the hundredths place. Since the number after it is 7, which is greater than 5, we get 81.73.

Thirty-six members of the choir, or 30% participated in the talent show. How many total students are in the choir?

Answers

120 students. 30% of 120=36

Patrica earns $12.50 per hour. She saves $3.25 of her hourly pay. What percentage of her hourly salary does she save?

Answers

Answer:

26%

Step-by-step explanation:

Well, we need to find what percent 3.25 is of 12.50.

12.50*x=3.25

3.25/12.50=.26

26% is saved.

Which numbers is divisible by 5,10 and 15.

A) 15
B) 20
C) 21
D) 34

Answers

i’m pretty sure it’s 20

We have first find out the factors of the numbers.Factors of 15 are 1, 3, 5, 15.Factors of 20 are 1, 2, 4, 5, 10, 20.Factors of 21 are 1, 3, 7, 21.Factors of 34 are 1, 2, 17, 34.Therefore, there are no numbers in the list, which are divisible by 5, 10 and 15.15 can be divisible by 5 and 15 not 10.20 can be divisible by 5 and 10 not 15.

Hope you could get an idea from here.

Doubt clarification - use comment section.

Miss B is making snickerdoodle cookies the recipe uses one and a half teaspoons of cinnamon to make 2 dozen cookies if she needs to make 13 dozen cookies to give them cookies page of her students

Answers

Answer:

Go download CameraMath on playstore

A bag of mixed nuts contains almonds and hazelnuts. There are
(6x + 13) nuts in this particular bag, and (3x - 7) of these are hazelnuts

Which expression represents the number of almonds in the bag?

Answers

Answer:

3x+20

Step-by-step explanation:

total nuts: 6x+13

hazelnuts: 3x-7

almonds expression:

6x+13-(3x-7)

=6x+13-3x+7

=3x+20

Two sides of a rhombus are represented by (3X-6)cm and (x+14)cm. Find the length of each side in the rhombus

Answers

Answer:

24 cm

Step-by-step explanation:

in rhombuses, the rule is that all sides are the same length which means 3x - 6 = x + 14. then, you just have to solve this:

3x - 6 = x + 14

subtract x from both sides

2x - 6 = 14

add 6 to both sides

2x = 20

divide both sides by 2

x = 10.

to find the length of each side, plug this back into the original side length expressions:

3x - 6 becomes 3 * 10 - 6 = 30 - 6= 24 cm

the length is 24 cm.

The vertices of a triangle are P(8, -5), Q(-5, -8), and R(-4, -3). What are the vertices of the
image reflected across the y-axis?

A. P’(8,-5), Q'(-5, -8), and R'(-4,-3)

B. P'(-8,5), Q'(5,8), and R'(4,3)

C. P'(8,5), Q'(-5,8), and R'(-4,3)

D. P'(-8,-5), Q'(5, -8), and R'(4, -3)

Answers

Answer:

Step-by-step explanation:

A gaming computer system and additional equipment was purchased for $2,000. The system and equipment depreciate in value by 10% each year.

After how many years will the computer have a value less than $1,000?

A. 1
B. 3
C. 7
D. 8

Answers

2000-200 = 1800

1800-180 = 1620

1620 - 162 = 1458

1458- 148.8 = 1309

1309 - 130.9 = 1178

1178- 117.8 = 1060.2

1060 - 106 = 954

= 7 years

The value of the car is $956.5938 after 7 years and this can be determined by using arithmetic operations.

Given :

A gaming computer system and additional equipment was purchased for $2,000. The system and equipment depreciate in value by 10% each year.

The following steps can be used in order to determine the total number of years will the computer have a value of less than $1,000:

Step 1 - The 10% of $2000 is $200. So, the value of the car after 1 year is $1800.

Step 2 - The 10% of $1800 is $180. So, the value of the car after 2 years is $1620.

Step 3 - The 10% of $1620 is $162. So, the value of the car after 3 years is $1458.

Step 4 - The 10% of $1458 is $145.8. So, the value of the car after 4 years is $1312.2.

Step 5 - The 10% of $1312.2 is $131.22. So, the value of the car after 5 years is $1180.98.

Step 6 - The 10% of $1180.98 is $118.098. So, the value of the car after 6 years is $1062.882.

Step 7 - The 10% of $1062.882 is $106.2882. So, the value of the car after 7 years is $956.5938.

Therefore, the correct option is C).

For more information, refer to the link given below:

https://brainly.com/question/25834626

what is the constant for 1000z + 800y

Answers

Answer:

Step-by-step explanation: they're is no constants they are both coeffitient because they are both numbers infront of the variable

I don’t understand this question

Answers

Answer:

1/64

Step-by-step explanation:

Answer: that would be 1/64

Step-by-step explanation:

for this type of question you put it 1/ such as:[tex]\frac{1}{8*8}[/tex] i got 8*8 because of The 8^2

and 8*8=64 therefor the answer is 1/64

*you put it over 1 to get rid of the negative exponents*

How do the values compare? Order the values from least to greatest.

-1/2
| -2 |
| 1/2 |
| -2 1/2 |
- 2 1/2
1 1/2

Answers

Im pretty sure it would be ordered: -2 1/2, -1/2, |1/2|, 1 1/2, |-2|, |-2 1/2|

This is because
-1/2 stays as -1/2
the absolute value of |-2| is 2
the absolute value of |1/2| is 1/2
the absolute value of |-2 1/2| is 2 1/2
-2 1/2 stays as -2 1/2
and 1 1/2 stays the same as well.
If you take all these numbers (-1/2, 2, 1/2, 2 1/2, -2 1/2, and 1 1/2) and order them from least to greatest, you would get:
-2 1/2, -1/2, 1/2, 1 1/2, 2, 2 1/2
which is -2 1/2, -1/2, |1/2|, 1 1/2, |-2|, |-2 1/2|

Im not exactly sure if it is all correct, but i hope this helps! :)

Are the figures below similar?
NO LINKS!! NEED ANSWER ASAP

Answers

Here is my answer. I hope it is helpful.

(08.06 MC)
Based on the graph, what is one solution of the equation f(x) = g(x)?
f(x)
(
g(x)

A x=-3.5
b x=-1
c x = 0.25
d x=-2

Answers

Answer:

A: X= -3.5

I just took the test, and I chose -1 and got it wrong and I looked back on the answer and that's what the answer said. Sorry if I was late, but good luck.

Three men can build a wall in 8 days. How long will it take them if they have the help of 2 boys? Assume that each boy works half as fast as each man.

Answers

Uhmm I think around 70 days or 90

I'm not sure

Answer:

6 days

Step-by-step explanation:

1 boy workload = 1/2 1 man workload

2 boys workload = 1/2*2 = 1 man workload

so 3 men + 2 boys workload = 4 men workload

3 men ..... 8 days ... 24man-days to build

4 men ..... x days ... 24man-days to build

x=24/4=6

Plzzzz help meee plzzzzzzz

Answers

Answer:

the answer is d

Step-by-step explanation:

if p(q) = q^2 4q- 12 then what is p(-1)

Answers

the solution:

(1): "q2" was replaced by "q^2".

Step by step solution :

STEP
1
:
Trying to factor by splitting the middle term

1.1 Factoring q2-4q-12

The first term is, q2 its coefficient is 1 .
The middle term is, -4q its coefficient is -4 .
The last term, "the constant", is -12

Step-1 : Multiply the coefficient of the first term by the constant 1 • -12 = -12

Step-2 : Find two factors of -12 whose sum equals the coefficient of the middle term, which is -4 .

-12 + 1 = -11
-6 + 2 = -4 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -6 and 2
q2 - 6q + 2q - 12

Step-4 : Add up the first 2 terms, pulling out like factors :
q • (q-6)
Add up the last 2 terms, pulling out common factors :
2 • (q-6)
Step-5 : Add up the four terms of step 4 :
(q+2) • (q-6)
Which is the desired factorization

Equation at the end of step
1
:

(q + 2) • (q - 6) = 0
STEP
2
:
Theory - Roots of a product

2.1 A product of several terms equals zero.

When a product of two or more terms equals zero, then at least one of the terms must be zero.

We shall now solve each term = 0 separately

In other words, we are going to solve as many equations as there are terms in the product

Any solution of term = 0 solves product = 0 as well.

Solving a Single Variable Equation:

2.2 Solve : q+2 = 0

Subtract 2 from both sides of the equation :
q = -2

Solving a Single Variable Equation:

2.3 Solve : q-6 = 0

Add 6 to both sides of the equation :
q = 6

Supplement : Solving Quadratic Equation Directly

Solving q2-4q-12 = 0 directly
Earlier we factored this polynomial by splitting the middle term. let us now solve the equation by Completing The Square and by using the Quadratic Formula

Parabola, Finding the Vertex:

3.1 Find the Vertex of y = q2-4q-12

Parabolas have a highest or a lowest point called the Vertex . Our parabola opens up and accordingly has a lowest point (AKA absolute minimum) . We know this even before plotting "y" because the coefficient of the first term, 1 , is positive (greater than zero).

Each parabola has a vertical line of symmetry that passes through its vertex. Because of this symmetry, the line of symmetry would, for example, pass through the midpoint of the two x -intercepts (roots or solutions) of the parabola. That is, if the parabola has indeed two real solutions.

Parabolas can model many real life situations, such as the height above ground, of an object thrown upward, after some period of time. The vertex of the parabola can provide us with information, such as the maximum height that object, thrown upwards, can reach. For this reason we want to be able to find the coordinates of the vertex.

For any parabola,Aq2+Bq+C,the q -coordinate of the vertex is given by -B/(2A) . In our case the q coordinate is 2.0000

Plugging into the parabola formula 2.0000 for q we can calculate the y -coordinate :
y = 1.0 * 2.00 * 2.00 - 4.0 * 2.00 - 12.0
or y = -16.000

Parabola, Graphing Vertex and X-Intercepts :

Root plot for : y = q2-4q-12
Axis of Symmetry (dashed) {q}={ 2.00}
Vertex at {q,y} = { 2.00,-16.00}
q -Intercepts (Roots) :
Root 1 at {q,y} = {-2.00, 0.00}
Root 2 at {q,y} = { 6.00, 0.00}

determine which ordered pair is a solution to the system of equations. A. (-2,-1) B. (-1,-2) C. (2,7)

Answers

Answer:

C. (2, 7)

Step-by-step explanation:

It is fairly easy to try the offered points in the equations to see which works.

A. (x, y) = (-2, -1); -4(-2) +2(-1) = 8 -2 = 6; 9(-2) -3(-1) = -18+3 = -15 ≠ -3

B. (x, y) = (-1, -2); -4(-1) +2(-2) = 4 -4 = 0 ≠ 6

C. (x, y) = (2, 7); -4(2) +2(7) = -8 +14 = 6; 9(2) -3(7) = 18 -21 = -3

(2, 7) is a solution to the system of equations.

_____

If you want to solve the equations, it can work to put each in standard form by dividing out the common factor.

2x -y = -3

3x -y = -1

Subtracting the first from the second gives ...

(3x -y) -(2x -y) = (-1) -(-3)

x = 2 . . . . . matches choice C

FREE BRAINLESS THE FIRST PERSON WHO ANSWER THIS
leo spends $5 per week on music. write an equation that equation that determines the dollars spend D per week.
A. d=5w
b. d=5+w
c. w=5d
d. w=5+d

Answers

ANSWER: C

EXPLANATION

you’re multiply they amount of mint by the number of weeks

Hope this help :)

1.0.2217.9-(4.1 + 1.8)] -0.22+ [7.9 - 0.224

Answers

Answer:

hhhhhhhhhhhhhh

Step-by-step explanation:

nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

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pls hurry will mark brainliest if you show work pls x + 10 = - x + 28

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pls hurry will mark brainliest if you show work pls

x + 10 = - x + 28