Mathematics High School

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Answers

Answer 1

Answer:

The answer is C. -3/4x+4

Step-by-step explanation:

Answer 2

Answer:

C

Step-by-step explanation:

y=(-3/4)x + 4

take any point on the line and go up 3 than left 4 and you will end up on the line again because slope is rise/run

the slope is negative because from left to right the line is downhill

Related Questions

Hi! Please help me solve this:

How did the temperature change if:
at first it decreased by 10% and then by 30%?
(I need the percent value)

Answers

Answer

by 20%????

Step-by-step explanation:

Solve 0.2(4x+10)−0.9x=0.2(x−6)+12.2 . Justify each step.

Answers

Answer:

x = -30

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

0.2(4x + 10) - 0.9x = 0.2(x - 6) + 12.2

Step 2: Solve for x

Distribute 0.2:                         0.8x + 2 - 0.9x = 0.2x - 1.2 + 12.2Combine like terms:                -0.1x + 2 = 0.2x + 11Add 0.1x on both sides:          2 = 0.3x + 11Isolate x term:                          -9 = 0.3xIsolate x:                                  -30 = xRewrite:                                   x = -30

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x:                    0.2(4(-30) + 10) - 0.9(-30) = 0.2(-30 - 6) + 12.2Multiply:                               0.2(-120 + 10) + 27 = 0.2(-30 - 6) + 12.2Add/Subtract:                      0.2(-110) + 27 = 0.2(-36) + 12.2Multiply:                               -22 + 27 = -7.2 + 12.2Add:                                     5 = 5

Here we see that 5 does indeed equal 5.

∴ x = -30 is the solution to the equation.

Solve for x:
3x – 2 (5 – x) = 30

Answers

Answer:

x = 8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

3x - 2(5 - x) = 30

Step 2: Solve for x

Distribute -2:                    3x - 10 + 2x = 30Combine like terms:        5x - 10 = 30Isolate x term:                  5x = 40Isolate x:                           x = 8

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x:                    3(8) - 2(5 - 8) = 30Multiply:                               24 - 2(5 - 8) = 30Subtract:                              24 - 2(-3) = 30Multiply:                               24 + 6 = 30Add:                                     30 = 30

Here we see that 30 does indeed equal 30.

∴ x = 8 is the solution to the equation.

PLEASEE HELP!!!!!!!!!!!!!!!
a speck of dust is 1.5 × 10 ^6 m wide. which of the following is the best way to rewrite this quantity, using more appropriate units?

Answers

Answer:

A

Step-by-step explanation:

the speck of dust is very small,

using the smallest unit out of all the choices, mm,  is the best way to rewrite it

choice A

Stacy's Weekly salary is $1516.52 what is her annual salary?

Answers

Answer:

Does she get paid once every week?

Step-by-step explanation:

Approx. $78,859.04 somewhere around there

simplify: -7 - 8

Change 1 6/7 to a decimal round to the nearest tenth.

Answers

Answer:

-15

1.9

Step-by-step explanation:

-7 - 8 = -15

1 and 6/7 = 1.857142857142857142857142.....

about 1.9

Which of the following system of inequalities is the graph below?


HELP ME PLEASE !!!

Answers

Answer:

2nd answer choice

Step-by-step explanation:

First, you see which inequalities are represented in the graph. When doing this,  I just temporarily the signs to equal signs so just basically ignore the inequalities. Then, when you find the ones with the right numbers, you can worry about the inequalities. Remember that greater than is always the side where the y values increase and less than is always where the numbers on the y axis decrease. Also, pay attention to the equal than sign. If it has a line under the sign, the line has to be solid while if there is no line, then it is dashed. In this problem, The first equation represents the dashed line and the second is the solid line.

Solve l5+2xl < 17
(I couldnt find the brackets soo, yea. THANKS!)

Answers

Answer:

X<6

Step-by-step explanation:

Subtract 5 to the other side, so 2x is by itself. 2x<17-5, which is reduced to 2x<12. Divide by 2 so x is by itself. x<6.

Answer:

-11 < x < 6

Step-by-step explanation:

how many times can 23 go into 26​

Answers

1 time you will have a decimal left over tho

Answer: 1.13043478 times

Step-by-step explanation:

Samuel scored a 32.5/40 on his most recent math test what percent did he earn in the test round to the nearest whole percent

Answers

Answer: 81%

Step-by-step explanation:

From the question, we are informed that Samuel scored a 32.5/40 on his most recent math test.

Based on the values given, to convert it to percentage, we have to multiply the score by 100. This will be:

= 32.5/40 × 100

= 3250/40

= 81.25%

= 81% to nearest whole number

1.through: (4,1). parallel to y=2x-3

2.through (4,4) parallel to y=3/2x -2

3.through (4,4) parallel to y=3/2 x-4

4.through (-1,1) prep to y=- 1/3 x+1

5.through (-3,3) prep to y=-3x+4

Answers

I’m just different lol

An acid is prepared by mixing 400 mL of water and 100 mL of pure sulfuric acid. What is the
percentage by volume composition of sulfuric acid?
A. 15 %
B. 20%
C.25%
D.30%​

Answers

C. 25
——-
Divide 400/100=4
——-
Than divide 4/100
—-

Last week, the number of type 2 cabinets produced exceeded twice the number of type 1 cabinets produced by 20. If x is the number of type 1 cabinets produced and y is the number of type 2 cabinets produced, the system of equations that represents this situation is x + y = 110 and y = 2x + 20.?

Answers

Step-by-step explanation:

Let x is the number of type 1 cabinets produced and y is the number of type 2 cabinets produced.

The total no of cabinets are 100

Equation will be : x+y = 110

We can write it as : y = 110-x ...(1)

Last week, the number of type 2 cabinets produced exceeded twice the number of type 1 cabinets produced by 20.

Equation will be : y = 2x + 20 ...(2)

Put the value of y from equation (1) into equation (2).

110-x = 2x + 20

Combining like terms,

110-20 = 2x+x

90 = 3x

x = 30

Put the value of x in equation (1) :

y = 110-30

y = 80

Hence, there are 30 cabinets of type 1 and 80 cabinets of type 2.

order these numbers from from least to greatest

27    3/9   1/5    1.23    75%​

Answers

Answer:

I don't know...jkkk

Step-by-step explanation:

First put the fractions and percents as decimals

27, 0.5,0.2, 1.23, 0.75

Now you can easily order them from LEAST to GREATEST

0.2,0.5,0.75,1.23,27

Hope this helps! :)

Write the power set of the set A={a,b,c}​

Answers

Answer:

P(A) = {{a},{b},{c},{a,b},{a,c},{b,c},{a,b,c},∅}

Step-by-step explanation:

➨ Power Set is the set of all subsets.

First, find the subset of A.

{a},{b},{c},{a,b},{a,c},{b,c},{a,b,c},∅

If you aren't sure that you already have written all subsets or not, use the following formula.

[tex]2^n[/tex] ➩ where n is the number of element/members.

Our number of members are 3, use the following formula.

[tex]2^3=8[/tex]

Thus, our subsets should be 8.

As we've already gathered all subsets, write the braces all whole subsets.

P(A) = {{a},{b},{c},{a,b},{a,c},{b,c},{a,b,c},∅}

someone please help me with this work

Answers

Answer:

-34degrees

Step-by-step explanation:

Which graph represents the function f(x) =-x|–2?

Answers

The third top graph

Answer:

C.

Step-by-step explanation:

Which absolute value number sentence is false? a. 171 +1-6 = 13 b. 1-151 - 1-8] = 7 c. 1-12 + 1-2 = 10 d. 1111 - 1-41 = 7 ​

Answers

Answer:

C.

Step-by-step explanation:

This is because the absolute value of -12 is 12 and the absolute value of -2 is 2. So then the equation would look like this: 12 + 2 = 10, which is a false equation.

Hope this helps!

You have budgeted $850 per month for rent. Your landlord has just informed you that your rent is being raised by 5% now and another 5% on December 1st. What will your rent be at the end of this year?

Answers

Your rent will be $894.63 if u raise it that much

Answer:

$892.50

Step-by-step explanation:

Solve for k
Please help!

Answers

Answer:

k = 0.3

Step-by-step explanation:

Multiply both sides by 2 * k

3 = 5 * 2*k      Combine like terms on the right

3 = 10 * k        Divide by 10

k = 3/10

k = 0.3

Which house and decorations is better

Answers

Answer:

The First house, also has a bigger bed! :)

Step-by-step explanation:

Answer: the first one hi Nana if u keep getting friend request ignore it im tryna make a bunch of acc but tell josh 2 talk 2 me

Step-by-step explanation:

What is the value of x in the solution to the system of equations? 4x - 2y = 5 y = 3x - 1​

Answers

Answer:

X = 7

Step-by-step explanation:

Please mark brainliest.

Answer:

[tex]\huge\boxed{\sf x = -2}[/tex]

Step-by-step explanation:

4x - 2y = 5 -------------------------------(1)

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

Put Eq. (2) in (1)

4x - 2(3x-1) = 5

4x - 6x + 1 = 5

-2x + 1 = 5

Subtracting 1 to both sides

-2x = 5 - 1

-2x = 4

Dividing both sides by -2

x = 4 / -2

x = -2

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

Hope this helped!

~AnonymousHelper1807

Pls helppppppppp!!!!!!’

Answers

Answer:

it c

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Write the equation of the line parallel to the line 3x + 5y = 7 and passes through the point (-1, 3) in standard form.

Answers

5y = -3x + 7
y = -3/5x + 7/5
Parallel = same slope
y = -3/5x + b
3 = -3/5 + b, b = 18/5
Standard form: Ax + By = C
y = -3/5x + 18/5
-3/5x - y = -18/5
Multiply by -5
Solution: 3x + 5y = 18

use standard algorithm to solve
1,457 x 56​

Answers

it needs 20 characters to submit lol

You bake cookies for a bake sale. The ratio of chocolate chip cookies to oatmeal cookies is 7 : 5. You bake 15 oatmeal cookies. How many chocolate chip cookies do you have?

Answers

Answer:

21

Step-by-step explanation:

15 divided by 5 is 3

7 times 3 = 21

Answer - There are 21 chocolate chip cookies.

PLEASE HURRY.
24. Factor completely
(1 Point
14x^3 – 16x^2 + 21x – 24

Answers

Answer:

(7x - 8)(2x² + 3)

Step-by-step explanation:

Given

14x³ - 16x² + 21x - 24 ( factor the first/second and third/fourth terms )

= 2x²(7x - 8) + 3(7x - 8) ← factor out (7x - 8) from each term

= (7x - 8)(2x² + 3)

At McCord Middle school, 40 percent of the 500 students ride their bikes or walk home. How many students ride their bikes or walk to school A. 12 B. 80 C. 200 or D. 2,000 it is not D. tho

Answers

I’m pretty sure the answer is C ( 200)

Answer:

200

Step-by-step explanation:

C

According to the table below how many cookies can be made with 1 cup of chocolate chips?




A. 3
B. 2
C. 5
D. 4

Answers

The answer is C. 5 hope this helps

just get 10 points get some points have fun use them wizely

Answers

Answer:

thank you

Step-by-step explanation:

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