pic below.............

Answer:

Step-by-step explanation:

first solve for y (or x) I chose y.  

-11 + 9y = -12

(-11) - (-12) =  1

9y = 1

9/1 = 1

y=1, now for x.

-11x + 9 = -12

-12 - 9 = -21

-11x = -21

-21/-11 = -32

x = -32.

Answer:

2799366

Step-by-step explanation:

Answer:

w=40

Step-by-step explanation:

Answer:

oh god my calculator can't handle this

Step-by-step explanation:

so your answer is 3, take it or leave it

No way is that an actual question that you have to do for school. I tried solving it, but my calculator can't take much. Plus, I tried counting how many 0's and 5's and 3's and 4's there were but my tiny brain can't remember no matter what.

I am bored, though, so I did take away all of the extra numbers. I got 691,360 from solving 10 x 1695 + 334 x 40.

You're welcome, I guess.

Given:

A 4-digit number contains at least one even digit.

To find:

How many such numbers are there?

Solution:

Digits are 0,1,2,3,4,5,6,7,8,9.

Number of odd digits = 5

Number of even digits = 5

4-digit numbers are from 1000 to 9999.

Total number of 4-digit numbers = 9000

Possible ways to get odd digits on all the 4 places is

[tex]5\times 5\times 5\times 5=625[/tex]

It means 625 numbers are their in which all 4 digits are odd.

To find total 4-digit number that contains at least one even digit, subtract the numbers which contains only odd numbers from the total 4-digit numbers.

[tex]9000-625=8375[/tex]

Therefore, total 4-digit number that contains at least one even digit is 8375.

Answer:

Answer:First step: Write the whole number and the mixed number as improper fractions.

Second step: Write the reciprocal of the divisor, 2/5, and multiply.

Third step: Simplify, if possible. ...

Fourth step: Perform the simple multiplication of the numerators and the denominators.

Step-by-step explanation:

Answer with step-by-step explanation:

A. Pam is correct.

This is because Pam is simplifying the equation. She is making the sides as simple as possible.

Hope this helped! (brainliest please)

Answer:

Junior PSAT

Training Packet

2016-17

Math Department  

Answer Key

Section 3: Math Test — No Calculator

QUESTION 1.

Choice C is correct. Subtracting 6 from each side of 5x + 6 = 10 yields 5x = 4.

Dividing both sides of 5x = 4 by 5 yields x =

_4

5

. Te value of x can now be

substituted into the expression 10x + 3, giving 10 ( _4

5 ) + 3 = 11.

Alternatively, the expression 10x + 3 can be rewritten as 2(5x + 6) − 9, and

10 can be substituted for 5x + 6, giving 2(10) − 9 = 11.

Choices A, B, and D are incorrect. Each of these choices leads to 5x + 6 ≠ 10,

contradicting the given equation, 5x + 6 = 10. For example, choice A is

incorrect because if the value of 10x + 3 were 4, then it would follow that

x = 0.1, and the value of 5x + 6 would be 6.5, not 10.

QUESTION 2.

Choice B is correct. Multiplying each side of x + y = 0 by 2 gives 2x + 2y = 0.

Ten, adding the corresponding sides of 2x + 2y = 0 and 3x − 2y = 10 gives

5x = 10. Dividing each side of 5x = 10 by 5 gives x = 2. Finally, substituting

2 for x in x + y = 0 gives 2 + y = 0, or y = −2. Terefore, the solution to the

given system of equations is (2, −2).

Alternatively, the equation x + y = 0 can be rewritten as x = −y, and substituting x for −y in 3x − 2y = 10 gives 5x = 10, or x = 2. Te value of y can then

be found in the same way as before.

Choices A, C, and D are incorrect because when the given values of x and

y are substituted into x + y = 0 and 3x − 2y = 10, either one or both of the

equations are not true. Tese answers may result from sign errors or other

computational errors.

QUESTION 3.

Choice A is correct. Te price of the job, in dollars, is calculated using

the expression 60 + 12nh, where 60 is a fxed price and 12nh depends on the

number of landscapers, n, working the job and the number of hours, h, the job

takes those n landscapers. Since nh is the total number of hours of work done

when n landscapers work h hours, the cost of the job increases by $12 for each

hour a landscaper works. Terefore, of the choices given, the best interpretation

of the number 12 is that the company charges $12 per hour for each landscaper.

Choice B is incorrect because the number of landscapers that will work each

job is represented by n in the equation, not by the number 12. Choice C is

incorrect because the price of the job increases by 12n dollars each hour,

which will not be equal to 12 dollars unless n = 1. Choice D is incorrect

because the total number of hours each landscaper works is equal to h. Te

number of hours each landscaper works in a day is not provided.

QUESTION 4.

Choice A is correct. If a polynomial expression is in the form (x)2

+ 2(x)(y) +

(y)2

, then it is equivalent to (x + y)2

. Because 9a4

+ 12a2

b2

+ 4b4

= (3a2

)2

+

2(3a2

)(2b2

) + (2b2

)2

, it can be rewritten as (3a2

+ 2b2

)2

.

Choice B is incorrect. Te expression (3a + 2b)4

is equivalent to the product

(3a + 2b)(3a + 2b)(3a + 2b)(3a + 2b). Tis product will contain the term

4(3a)3

(2b) = 216a3

b. However, the given polynomial, 9a4

+ 12a2

b2

+ 4b4

,

does not contain the term 216a3

b. Terefore, 9a4

+ 12a2

b2

+ 4b4 ≠ (3a + 2b)4

.

Choice C is incorrect. Te expression (9a2

+ 4b2

)2

is equivalent to the

product (9a2

+ 4b2

)(9a2

+ 4b2

). Tis product will contain the term (9a2

)

(9a2

Answer:

that looks hard

Step-by-step explanation:

b

Answer:

65°

Step-by-step explanation:

The consecutive interior angles theorem states that if two parallel lines are cut by a transversal line then the resulting pair of consecutive angles formed are supplementary (that is they add up to 180°).

Given that the painting rows are parallel to each other and a painted line (transversal) cut the parallel lines forming consecutive interior angles m∠1 and m∠2. Therefore:

m∠1 + m∠2 = 180°

m∠1 + 115 = 180

m∠1 = 180 - 115

m∠1 = 65°

Answer:

65

Step-by-step explanation:

just did it in edge  2020

Answer:

number of staplers

Step-by-step explanation:

In this question, there are two variables: the cost and the number of staplers. The cost depends on the number of staplers, so cost is the dependent variable. This means the number of staplers is the independent variable.

Answer:

No

Step-by-step explanation:

42 x 42 = 1764

43 x 43 = 1849

1764 + 1849 = 3613

and the sqaure roof of 3613 is 60.11

60.11 does not equal 58

so no it is not a right triangle

Answer:

its C :)

Step-by-step explanation:

Answer:

-2

Step-by-step explanation:

Answer:

.12

Step-by-step explanation:

When converting percents to decimals, each 1% is equivalent into a hundredth in a decimal. Add 3 and 9 to get 12 hundredths, which will be .12.

Answer:

to evaluate a function, substitute the input

Step-by-step explanation:

(the given number or expression) for the function variable (place holder, x) replace the x with the number or expression. 1. given function f (x)=3x -5 finf (f) 4.

Answer:

6x-5

Step-by-step explanation:

Alright let's begin.

6 times a number means 6 times x. So 6x.

Then when it says decreased by 5 it means you subtract 5!

Your expression would look like this:

6x-5

Hope it helps! Mark brainliest if possible

Answer:

#1) 25  degrees   #2) 155 degrees    #3) 25  degrees    #4) 25  degrees   #5) 5x+15= 110

Step-by-step explanation:

basically the use the vertical angle relationship to figure it out

that would mean that 4=155 and 3=1 and since the relationship is straight angle pair it means that 155+ x= 180    180-155= 25  

5) CDE= FDG this is the vertical angle rule so 5x+15= 8x-42      

solve that by adding like terms, 5x-15= 8x-42 +15      by doing adding to both sides it eliminates the 15 because you added it with the like terms, -42 and got -57

-57+8x= 5x   now subtract 8 on both sides, -57= -3x    divide and it equals 19

now plug that back into the eqaution of 5x+15   5(19)= 95 + 15= 110

Answer:

I think its 9 to 45, b.

Step-by-step explanation:

because the a gets you a 39900% , and c gets you a 500%, and d gets you a 300%. So b is the only option that makes sense.

Answer:

9 to 45

Step-by-step explanation:

Answer:

x=10/3

Step-by-step explanation:

Answer: 10/3

Step-by-step explanation:

Let's solve your equation step-by-step.

Step 1: Subtract 2x from both sides.

Step 2: Subtract 4 from both sides.

Step 3: Divide both sides by 3.

Answer: 1 cup

Step-by-step explanation:

he has already put in 4, and he needs 5

5-4 = 1

Answer:

Step-by-step explanation:

I more cup

Answer:

1. -1

2. 25°

3. 26 1/4

Step-by-step explanation:

1. 14-8 is 6, -2 - 4 = -6, 6 ÷ -6 is -1

2. 75 + 80 = 155, 180 - 155 = 25°

3. cross multiply 4/5 = 21/x  (4x= 105) = 26 1/4 or 105/4

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

Answer:

What she said

Step-by-step explanation:

Answer:

The correct answer in this question is B. Loneliness.

Step-by-step explanation:

The Man speaking in this passage of "Annabel Lee" is lonely now that his beloved is shut away far from him in the kingdom of the sea.

Answer:

$63.55

Step-by-step explanation:

Taxes are charges paid by individuals and enforced by the government in other to fund government spending and various public expenditures.

The flowers cost $59.95 and tax is 6%.

Tax = 6% of flower cost = 0.06 × $59.95 = $3.6

The  total cost of the flowers is the sum of tax and the cost of flowers, hence:

Total cost of the flowers = $59.95 + $3.6

Total cost of the flowers = $63.55

Answer:

[tex]y=-2x-4[/tex]

Step-by-step explanation:

Perpendicular Bisector

The bisector of a segment defined by points (x1,y1) and (x2,y2) must pass by the midpoint of the segment.

The midpoint (xm,ym) is calculated as follows:

[tex]\displaystyle x_m=\frac{x_1+x_2}{2}[/tex]

[tex]\displaystyle y_m=\frac{y_1+y_2}{2}[/tex]

The endpoints of the segment are (-3,-8) and (5,-4), thus the midpoint M is:

[tex]\displaystyle x_m=\frac{-3+5}{2}=1[/tex]

[tex]\displaystyle y_m=\frac{-8-4}{2}=-6[/tex]

Midpoint: M(1,-6)

Let's find the slope of the given segment. The slope can be calculated with the formula:

[tex]\displaystyle m_1=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\displaystyle m_1=\frac{-4+8}{5+3}=\frac{1}{2}[/tex]

If the bisector is also perpendicular, its slope m2 and the slope of the segment m1 must comply:

[tex]m_1.m_2=-1[/tex]

Solving for m2:

[tex]\displaystyle m_2=-\frac{1}{m_1}=-\frac{1}{\frac{1}{2}}=-2[/tex]

Once we have the slope -2 and the point through which our line must pass (1,-6), we compute the equation in its point-slope form:

[tex]y-y_o=m(x-x_o)[/tex]

[tex]y-(-6)=-2(x-1)[/tex]

Operating

[tex]y+6=-2(x-1)[/tex]

[tex]y+6=-2x+2[/tex]

Rearranging

[tex]\boxed{y=-2x-4}[/tex]

Answer:

no

Step-by-step explanation

6x+2 is not equal to 3x so they are not proportional

Answer:

(6,31)

Step-by-step explanation:

solve the both equation;

3X+13=5X+1

or, 12=2X

or, X=6

substitute the value of x in the equation;

y=5X+1

or, y=5×6+1

or, y=31