Mathematics High School

Someone please help! ​

Someone Please Help!

Answers

Answer 1

Answer:

12 and 21

Step-by-step explanation:

Related Questions

Write an equivalent expression by distributing the "
−−" sign outside the parentheses:
−(3h−2.3k)−7

Answers

Answer:

= -3h + 2.3k -7

Step-by-step explanation:

you want to distribute your negative to each value in parentheses

remember that negative x negative = positive

remember that negative x positive = negative

Tony buys 2 boxes of chocolates. One is 4 in. 7 in. 8 in. And 8 in. 5 in. 6 in. Which box has the larger volume?

Answers

Answer:

Second box

Step-by-step explanation:

Volume (of the box) = length * width * height

Volume of first box is: 4 * 7 * 8 = 224

Volume of second box is: 8 * 5 * 6 = 240

Since 224 < 240, the volume of the second box has the larger value.

Answer:

second choice

Step-by-step explanation:

2. Pierre works full time and is paid an hourly rate of $12.50 for 35 hours a week. He is paid for 52
weeks of the year. What are his total earnings for ONE YEAR?​

Answers

Answer:

$22,750

Step-by-step explanation:

First, find out how much Pierre is paid per week: $12.50 x 35 -> $437.5/week

Then, multiply to find how much he is paid the whole year: $437.5 x 52 -> $22,750

help pls it has to be in an equation and ill mark brainliest.​

Answers

Answer:

y = 1/6x+2

Step-by-step explanation:

1/6=slope 2=y int. hope this kinda helps

60 people attend a game night everyone chooses to play chess a two player game or cribbage a four player game all 60 people are playing chess or cribbage if there were 8 games of cribbage played how many games of chess was played​

Answers

Answer:

there were 14 games of chess

Answer:

14 games of chess

Step-by-step explanation:

Cement costs $76 per cubic yard. What is the cost of cement for a sidewalk that is 4 in. Thick, 3ft wide,and 40 ft. Long?

Answers

Answer:

112.46 yd³

Step-by-step explanation:

1 inch = 0.0278 yds

1 feet = 0.333 yd

Thickness = 4 inches = (4 * 0.0278) = 0.1112 yds

Width = 3 feets = (3 * 0.333) = 0.999 yds

Length = 40 feets = (40 * 0.333) = 13.32 yds

Volume of sidewalk :

Thickness * Width * Length

0.1112 * 0.999 * 13.32 = 1.479702816 yd³

1 yd³ of cement = $76

Cost :

1.479702816 yd³ * $76

= 112.457414016

= 112.46 yd³

What is the board feet of lumber if it has a 2-inch thickness, 3-inch width and length is 7ft?

A. 1
B. 3.5
C.5
D. 7.5​

Answers

Answer:

B. 3.5

Step-by-step explanation:

2inch×3inch×7ft=board ft

2×3=6inch

7ft=84

6×84=504

504inch³=3.5board ft

#gamer

Find the area of a triangle with:
b: 14 cm
h: 23 cm
ANSWERS
322 cm2
322 cm3
161 cm2
161 cm3

Answers

Answer:

161cm2

Step-by-step explanation:

Area: 1/2 x base x height

1/2 x 14 x 23=161

Area is measured in cm2

Hope this helps!

Select the two points that the line would go through. Practice on a piece of paper in front of you.

(1,-3)

(4,1)

(6,3)

(2,-2)​

Answers

Answer:

(1,-3), (2,-2)​

Step-by-step explanation:

The graph passes through (3, -1) and (0, -4)

The slope is:

(-4 - (-1))/-3 = -3/-3 = 1

The y-intercept is given: -4

The line is:

y = x - 4

See the graph

The points plotted as well and those on the line are:

(1,-3)(2,-2)​

Plz help me with this question

Answers

Answer:

C

Step-by-step explanation:

Remark

There are probably a couple of ways that you could do this. I'm going to pick the most obvious way.

Givens.

KN = 2.5

NO = 10

LM = 3

MP = x

Equation

NO/KN = PM / LM

Solution

10 / 2.5 = x / 3              Cross multiply

2.5x = 10 * 3                 Combine

2.5x = 30                      Divide by 2.5

x = 30/2.5

x = 12

That looks like it should be the answer, and it almost is, but you are asked for LP.

LP = LM + MP

LP = 3 + 12

LP = 15

The answer is 15

How many degrees of rotational symmetry does the flower have

Answers

Answer:

It has 5-fold rotational symmetry (72 degrees). The Clematis shown has 8-fold rotational symmetry (45 degrees). It has 8 flower petals arranged around the center of the flower.

Step-by-step explanation:

HELP I NEED HELP ASAP

Answers

What is that Sorry I can’t help

bg=3 Solve the following equation for b. Be sure to take into account whether a letter is capitalized or not.

Answers

Answer:

B

Step-by-step explanation:

The equation for B would be as; B = 3/G

How can we find the solution to an equation?

We do same operations on both the sides so that equality of both expressions doesn't get disturbed. Solving equations generally means finding the values of the variables used in it for which the considered equation is true.

Sometimes we can find such value, and sometimes it is not possible at all, or sometimes, there are infinite number of solutions.

Remember that Solutions to an equation are those values of the variables involved in that equation for which the equation is true.

WE have the given equation as

BG = 3

To solve for the B, we have to eliminate the G from its side;

Then;

B = 3/G

Therefore , the equation for B would be as; B = 3/G

Learn more about solving equations here:

https://brainly.com/question/18015090

#SPJ2

Mario has 160 pizzas and is collecting two pizzas a week. Write the equation for the number of pizzas Mario has

Answers

Answer:

160+2x

Step-by-step explanation:

Answer:

Mario has after 5 weeks 170 pizzas.

Step-by-step explanation:

Each time add to the chart 2 Pizzas and move a week.

You have 0.2 liter of an acid solution whose acid concentration is 16 moles per liter. You want to dilute the solution with water so that its acid concentration is only 12 moles per liter. Use the given model todetermine howmany liters of water you should add to the solution.

Answers

Answer: 0.067 litres of water

Step-by-step explanation:

The mode is:

Concentration of new solution = Moles of acid in original solution / (Volume of original solution + Volume of water added)

Assume volume of water added is w.

12 = 16 (0.2) / (0.2 + w)

(0.2 + w) * 12 = 3.2

0.2 + w = 3.2 / 12

w = (3.2 / 12) - 0.2

w = 0.067 litres of water

The amount of water you should add to the solution is 0.067 liters.

Given

You have 0.2 liters of an acid solution whose acid concentration is 16 moles per liter.

You want to dilute the solution with water so that its acid concentration is only 12 moles per liter.

The concentration of new solution;

You can also use the solution dilution calculator in order to calculate the concentration of ions in a diluted solution.

The amount of water you should add to the solution is given;

[tex]\rm Concentration \ of \ new \ solution =\dfrac{\text{Moles of acid in original solution } }{\text{Volume of original solution + Volume of water added}}\\\\12=\dfrac{16(0.2)}{0.2+w}\\\\12 (0.2+w)=16(0.2)\\\\2.4 +12w=3.2\\\\12w=3.2-2.4\\\\12w=0.8\\\\w=\dfrac{0.8}{12}\\\\w=0.067[/tex]

Hence, the amount of water you should add to the solution is 0.067 liters.

To know more about concentration click the link given below.

https://brainly.com/question/882576

a rock is thrown in the air from the edge of a seaside cliff. it's height in feet is represented by f(x) = - 16(ײ-8x-9), where is the numbers of seconds since the rock was thrown. the height of the rock is 0 feet when it hits water​

Answers

Answer:

6 seconds

Step-by-step explanation:

Just took the test :)

help, look at picture

Answers

Answer:

y= 5/3 which is 1 2/3

Step-by-step explanation:

trust me

y=5/3

.......................

How many solutions does the system have?
20x−5y=5
4x−y=1

Answers

Answer:

Infinite solutions.

Step-by-step explanation:

Just plug your equation into desmos graphing calculator and it will graph it for you. If it is infinite the two lines will lay on top of one another. If there is only one solution it will be where the two lines intersect. If there are no solutions the two lines will be parallel.

The masses of 4 containers loaded on a ship are 28 tonnes,45 tonnes,16.8tonnesand 48500kg .What is 5he total mass in tones?​

Answers

Step-by-step explanation:

first of all we have to change kg into ton= 48500kg into ton =53.462ton(48500/907.168)

after that we add all the weight of 4 container = 28+45+16.8+53.462

total will be his total mass of tones he had =143.262

find the m and b of the table

Answers

9514 1404 393

Answer:

  m = 1/2

  b = -7

Step-by-step explanation:

The formulas for these can be used.

  m = (y2 -y1)/(x2 -x1) . . . . . . . . . formula for slope given 2 points

  m = (-9 -(-11))/(-4-(-8)) = 2/4

  m = 1/2

__

  b = y1 -m·x1 . . . . . . . . . . . . formula for y-intercept given slope and point

  b = -11 -(1/2)(-8) = -11 +4

  b = -7

how to divide 134 800 by 240 using long method?​

Answers

Answer:

sumando

Step-by-step explanation:

sumando 240 134800 veces

Can the terms susc as "less than" and "more than" be used in a real situation? Can you give an example or examples?
​

Answers

Answer:

Yes

Step-by-step explanation:

She had more than me

I would help her but she has less than me

here are 36 points lovely person but first any advice for a student - kid

Answers

I don’t have much advice, but I would make yourself a schedule and a to-do list so you stay in track, and know what you’re doing each day so you can hold yourself accountable and can’t have any excuses about “not knowing about the work” because if you’re organized and get it done fast, you will be able to know about all of you work and have beTter grades since you have more time to learn the material and turn it in on time

Thanks for the points lol

Simplify the expression. 25(z-4)

Answers

Answer

25z - 100

Step by step explanation

Answer:

25z-100

Step-by-step explanation:

− 2/3m = −1/2 solve for m

Answers

Answer:

m=-18

Step-by-step explanation:

-12=2/3m

please please answer will give brainliest

Answers

Answer:

c

Step-by-step explanation:

.5xBxH=.5x16x5=8x5=40

Answer:

c

Step-by-step explanation:

sources: dude trust me

The perimeter of the triangular park shown on the right is 15x-2 what is the missing length

Answers

Answer:

missing length is 6x - 1

Step-by-step explanation:

To find missing length, add two known sides and subtract from perimeter

(15x - 2) - (4x + 4 + 5x - 5)

(15x - 2) - (9x - 1) = 6x - 1

Dilate point a in relation to the origin by a dilation factor of 5.?

Answers

Answer:

origin dilation if 5. is 5

3x-2.(x+1)=-2 denklemini sağlayan, x'in değeri kaçtır? ​

Answers

Answer:

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

3x - 2x - 2 =-2

x = - 2 +2

x = 0

hope it helps

The coordinate bridge shows the cost of different numbers of bookmarks how many sense do for bookmarks cost.

Answers

Answer:

54 cents

Step-by-step explanation:

The cost of bookmarks relating to the number of bookmarks is given by the graph shown. Therefore:

From the graph, we can determine the relationship between the cost of bookmarks and the number of bookmarks by using two points. The equation of a line passing through points [tex](x_1,y_1)\ and\ (x_2,y_2)[/tex] is:

[tex]y-y_1=\frac{y_2-y_1}{x_2-x_1} (x-x_1)\\[/tex]

From the graph, y represents the cost of bookmarks in cents and x represent the number of bookmarks. we can see that it passes through the point (2, 30) and (7, 90). Hence:

[tex]y-30=\frac{90-30}{7-2}(x-2)\\\\y-30=12(x-2) \\\\y-30=12x-24\\\\y=12x+6[/tex]

The cost of 4 bookmarks (x = 4):

y = 12(4) + 6

y = 54 cents

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