Mathematics High School

SHOW YOUR WORK FOR EACH ONE!


5. 10(x − 1)

6) −7(1 + 4x)

7) 7(−v − 7)

8) 7(2 − x)

9) 4(−7 − x)

10) 5(k − 5)

Answers

Answer 1

Answer:

PLZ MARK BRAINLIEST

Step-by-step explanation:

5. Distribute 10 (x - 1 )

10x - 10 = 10x -10

6. -7 (1+4x)

-7 ( 4x +1)

= -28x -7

7.  7 (-v-7)

  =  - 7v - 49

8. 7 ( 2 - x )

    7 (- x + 2 )

= - 7 x + 14

9. 4 ( - 7 - x )

    4 ( - x - 7)

= -4 x -28

10.  5 ( k - 5 )

      5k - 25

=  5k - 25

Related Questions


The difference of half
of a number and three
is equivalent to
negative
five.

Answers

3/2=3-5

Step-by-step explanation:

jdjdnsnsnsmanzna

this week sage spent $30 for hot dogs and supplies. he earned $18. Did he make money or lose money this

Answers

Answer:

He lost $12.

Step-by-step explanation:

Money Earned=$18

Money Spent=$30

Here, Money Spent is larger than Money Earned, which means that he lost money.

$30-$18

$12

He lost $12.

Answer:

he made money and lose money this week

Step-by-step explanation:

HOpe this helps

the length and breadth of a piece of land are 20meters and 15 meters respectively. What is the perimeter of this land?

Answers

Answer:

20x15=300

When you need to calculate the Length and Width of a piece of land or anything else, all you need to do is multiply the two numbers.

Step-by-step explanation:

When you have 20 units of land in as the length and 15 units of land as width, then you should multiply.

2x4=?

When you do 2x4, you have to do 2+2+2+2=

but, here, you have a piece of land to calculate, so basically, you have to multiply still. In that way, you will be able to get what 20 and 15's product is.

I'm sorry, sometimes I just can't explain that well, but just remember, in these types of problems, just multiply, that is your answer.

Thank You! I hope I made your day just a little better!

Have a great time studying!

You just multiply both those numbers by two then add them together

Helppp I will give u 100 if you give me a good answer

Answers

Answer: it allows you to see both sets of data more clearly and compare them rather than having them on two different charts.

Step-by-step explanation:

A dump truck can hold 2¼ tons of gravel. The pay loader loading the truck puts 750 pounds of gravel in the truck at one time. How many loads does the pay loader need to dump in the truck before it is full?​

Answers

Answer:

6 loads would be required to fill the truck with 2¼ tons

Step-by-step explanation:

1 ton= 2000 pounds

2¼ tons= 4500 pounds

4500/750=6

Please allow me to know this helped by clicking thank you, rating or brainly.

Thank you,

Miss Hawaii

Answer:

6 loads

Step-by-step explanation:

Please solve no.a) from here for me

Answers

Answer:

x < 1 and x > -2

Step-by-step explanation:

5x - 1 < 4 and 3x + 5 > x + 1

Step 1.) Transfer the -1 over by the 4 by adding it because you use the opposite symple when its transfered.

5x < 5 and 3x + 5 > x + 1

Step 2.) Divide 5 by 5 to get the variable alone

x < 1 and 3x + 5 > x + 1

Step 3.) Subtract x from 3x which gives 2x and subtract 5 from 1 which gives -4

x < 1 and 2x > -4

Srep 5.) Divide -4 by 2 to get the variable alone and you get -2

x < 1 and x > -2

Can someone answer this for me

Answers

x=60° (equilateral triangle)

y=120°
Working: (360°-120°)/2

find f'(x)of f(x)=x^2-6x​

Answers

Answer:

[tex]f(x) = {x}^{2} - 6x \\ {f}^{'} (x) = 2x - 6 \\{f}^{'} (x) = 2(x - 3)[/tex]

What do I put in the blank box? Could you also add step by step explanation? If you cant its fine :)

Answers

Answer:

its 34/5

Step-by-step explanation:

change that mixed fraction by simply multiplying 6×5 then add 4 you'll get 34 then place it over the denominator 5 =34/5........ hope it helps

Help! What can we do to kill off the zombies?? The scientists realize that salt kills the zombies, if enough is poured on them (one full can). The reaction between the salt and zombie blood causes the zombie to disintegrate. Morton's salt has a plant in Tooele county just west of Grantsville, and can distribute cans of salt to people residing in Utah. If Morton's salt can distribute 300,000 cans of salt each day, write an equation to model the number of cans of salt distributed after n days.

Question 4 options:

f(n)=300,000n

f(n)=300,000+n

f(n)=300,000n

f(n)=300,000n/n

Answers

Answer:

I think its f(n)=300,000n

Step-by-step explanation:

Answer:

f(n)=300,000n

Step-by-step explanation:

Expand each expression and simplify your answers as far as possible
1. 8x - 2(3 - 2x)
2. 4x + 5-3(2x - 4)

Answers

Answer:

1. 12x - 6

2. -2x + 17

Step-by-step explanation:

1.

8x - 2(3 - 2x)8x - (-2)(3) + (-2)(-2x) 8x + (-6) + 4x(8x + 4x) + (-6)12x - 6

2.

4x + 5 + (-3)(2x) + (-3)(-4) 4x + 5 - 6x + 12(4x - 6x) + (5 + 12)-2x + 17

Answer:

[tex]\boxed{\sf 12x-6}[/tex]

[tex]\boxed{\sf -2x+17}[/tex]

Step-by-step explanation:

[tex]\sf 1)\: 8x - 2(3 - 2x)[/tex]

Apply Distributive Property to multiply -2 by (3-2x):

→ [tex]\sf 8x-6+4x[/tex]

Combine like terms:

→ [tex]\sf (8x+4x)[/tex]

[tex]\sf 12x[/tex]

[tex]\boxed{\sf 12x-6}[/tex]

______________________________

[tex]\sf 2)\: 4x + 5-3(2x - 4)[/tex]

Apply Distributive property:

Multiply -3 by (2x-4):

[tex]\sf 4x+5-6x+12[/tex]

Combine like terms:

→[tex]\sf (4x+(-6x))[/tex]

[tex]\sf -2x[/tex]

→ [tex]\sf (5+12)[/tex]

[tex]\sf 17[/tex]

[tex]\boxed{\sf -2x+17}[/tex]

_____________________________

HELP PLEASE SHOW ME HOW TO DO THIS

Answers

Answer:

Step-by-step explanation:

Salary increase in 2 years = Salary in fifth year - salary in 3rd year

    = 87,023 -  43,250

     = $ 43,773

Salary increase per year= 43773/2 = $ 21,886.50

somebody please just answer.......................

Answers

Answer:180 is what it need to be

Step-by-step explanation:

During the summer, Hector does yard work, and Geri babysits.To show their earnings, Hector makes a graph, and Geri makes a table. Which statement is true?

Answers

Answer:

Step-by-step explanation:

$6.59

Answer:

Hector earns $6.50 more per hour than Geri.

PLEASE help!! I’ll give brainliest!!

The graph shows the number of gallons in a pool being drained and
represents a linear function.

Which statement about this function is correct?

A. The y-intercept is (0, 8500), and the 8500 represents the number
of gallons before draining the pool.

B. The y-intercept is (0, 8500), and the 8500 represents the number of
gallons drained per hour.

C. The y-intercept is (8500, 0) and represents the number of hours it
takes to drain the pool.

D. The y-intercept is (8500,0) and represents the number of gallons
drained per hour.

Answers

Answer:A. The y-intercept is (0, 8500), and the 8500 represents the number

of gallons before draining the pool.

Step-by-step explanation:

The y-intercept is (8500,0) and -540 represents the number of gallons drained per hour. Then the correct option is D.

What is a linear equation?

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

The linear equation is given as,

y = mx + c

Where m is the slope of the line and c is the y-intercept of the line.

The graph shows the number of gallons in a pool being drained and represents a linear function.

Let 'x' be the number of hours and 'y' be the volume. And the points are (4, 6340) and (6, 5260). Then the equation of the line is given as,

(y - 6340) = [(6340 - 5260) / (4 - 6)] (x - 4)

y - 6340 = - 540x + 2160

y = - 540x + 8500

The y-intercept is (8500,0) and -540 represents the number of gallons drained per hour. Then the correct option is D.

More about the linear equation link is given below.

https://brainly.com/question/11897796

#SPJ2

10.
Find the measure of angle 1.
8x - 4
16x + 8

Answers

the answer is C: 44 degrees

Answer:

53°

Step-by-step explanation:

As we can see that ∠3 and ∠7 are corresponding angles. Therefore,

∠3 = ∠76x+8 = 8x-76x-8x = -7-8-2x = -15x = -15/-2x = 15/2

Now calculate the angles of ∠3 and ∠7.

∠36x+86×15/2+845+853°

∠78x-78×15/2-760-753°

Now we can see that ∠3 and ∠1 are alternate angles and ∠7 and ∠1 are alternate exterior angles. Thus, we can say that

∠3 = ∠7 = ∠1 = 53°

Hence the measure of ∠1 is 53°.

♦♦♦♦♦Hope it helps♦♦♦♦♦

help please !! geometry​

Answers

2 and 5. Because of congruence rule. It tries to confuse u but don’t let it. Also always remember if those lines are there u know there congruent no matter what.


9/6 × 4/5
1
) 36/11
) 6/5
) 32/30
) 13/15​

Answers

Answer:

6/5

Step-by-step explanation:

9×4=36

6×5=30

36/30÷2

18/15÷3

6/5

equation of line M is Y=5/8x+1 . Line N is perpendicular to M. What is the slope of line N?

Answers

Step-by-step explanation:

the slope of a line is always the factor of x in the equation. in our case here : 5/8.

the slope is the y/x ratio indicating how many units y changes, when x changes by a certain amount of units (e.g. when going from one point on the line to another).

the perpendicular slope (crosses the original line in a right angle = 90 degrees) turns x and y upside-down and flips the sign.

so, in our case, it is -8/5.

what is the answer to this

Answers

Answer:

x = 144

Step-by-step explanation:

x/2= 84-12 = 72

x = 72 x 2 = 144

pls mark as brainliest


A school gym is set up for an
assembly. There are 17 rows with 28
chairs in each row. Parents are sitting
in half the chairs, but the other half
are empty. How many chairs are empty?

Answers

There are 238 empty chairs.

17 rows•28 chars per row=476 chairs total

476 chairs/2(because half are empty)=238 empty chairs.

Answer:

238 chairs are empty

Step-by-step explanation:

Firstly,

you'll have to times 17 by 28 to get the total chairs in the school gym

17 × 28

= 476

Next,

divide it by 2 because half of the gym???

476/2

= 238

So, the amount of the empty chairs in the school gym are 238 in total ｡◕‿◕｡

a
Convert 0.58 into
percentage

Answers

Answer:

58%

Step-by-step explanation:

Answer:




Is 58% converted from 0.58

PLSSS HLEPP ME OUTT ITS URGENTTTT​

Answers

Answer:

Step-by-step explanation:

(1860-11)=1849

√(1849) = 43

(A quick trial)

Graph the inequality. x < 2

Answers

Step-by-step explanation:

there u have it, since y is 0, we make a straight line that passes through 2 and shade the numbers that are <2

What is -(x + 4) - 3x = x in Distributive property?

Answers

Answer:

x = -4/5

Step-by-step explanation:

Original equation: -(x+4)-3x=x

Remember distributive property allows us to get rid of the parenthesis by bringing a multiplication from outside to inside a parenthesis.

-(x+4) = -x-4

= -x-4-3x=x

Now we combine like terms in this case we have (-x) and (-3x)

= -4x-4=x

Subtract x from both sides

= -4x-4=x

  -x      -x

----------------

 -5x-4=0

Add 4 to both sides

-5x-4=0

    +4 +4

---------------

-5x=4

Our final step is to divide both sides by -5

-5x=4

----  ----

-5    -5

x = -4/5

Hope this helps!!!

PLEASE HELP ILL MARK BRAILIEST!!!!!

Answers

Answer:

(-6,2)

Step-by-step explanation:

Answer:

y=4/5x-17/5

Step-by-step explanation:

Hope this helps!

The second picture is the same as the picture you have thus the equation is correct

In the inequality 4>-4, which number appears farther right on a number
line and why?
O A. -4 appears farther right because -4 is smaller than 4.
O B. -4 appears farther right because - 4 is larger than 4.
C. 4 appears farther right because 4 is larger than -4.
D. 4 appears farther right because 4 is smaller than -4.
PLEASE HELP ASAP!! THIS IS ONE OF MY FINAL TEST… AKA- ITS MOST OF MY GRADE

Answers

Answer:

"C" 4 appears farther right because 4 is larger than -4.

the heights in cm of some pupils are 138 119 182 174 142 117 152 152

Answers

mean; 147

median; 147

mode; 152

Find the least common multiple for the pair of numbers. 18,7

Answers

Answer:

the lcm is 126

write the equation
it passes through (-5,-7) and (-5,7)

Answers

Answer:

x = -5

Step-by-step explanation:

Find the gradient:

m = change in y ÷ change in xm = (7 - -7) ÷ (-5 - -5)m = 14 ÷ 0m = 0 - There is no gradient, and it is a vertical line

The equation is x = -5, because in both co-ordinate pairs, the x is -5 - only the y changes

Hope this helps!

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