Mathematics Middle School

Find the value of x and m∠HKL.

Answers

Answer 1

Answer:

x = 25 degrees ∠HKL = 102 degrees

Step-by-step explanation:

The whole thing equals 180, since it is a straight angle

The value of HKL is 180 - 78 = 102

So that means 4x + 2 = 102

Subtract 2 from both sides:

4x = 100

Divide both sides by 4:

x = 25

Related Questions

(20/21-1/7) x 7/8 = ?

Answers

Answer:

17/24 Decimal form- 0.708333

Step-by-step explanation:

first make the denominator equal by multiplying 7 by three = (20/21 - 3/21) = (17/21)

now factor out 7 from (17/21) • 7/8
which gives 17/3 • 1/8

now multiply 17/3 • 1/8 = 17/21

In which expression is the coefficient of the n term -1?

Answers

Answer:

jubiau 72t

Step-by-step explanation:

and also tbhe

The answer is c -2n-n 5

who ever gets this will get a brainlest

Answers

the last option: all of these are important to review.

How current the information is

Over the summer, the facility manager of a public swimming pool collected information on the amount of water in the pool and the number of swimmers. The results are shown in the scatter plot below. Which statement is supported by the data in the scatter plot?

A. As the number of swimmers increases, the amount of water in the pool tends to decrease.

B. As the number of swimmers increases, the amount of water in the pool tends to increase.

C. As the number of swimmers increases, the amount of water in the pool tends to stay the same.

D. There is no relationship between the number of swimmers and the amount of water in the pool.

Answers

The answers is B

Step-by-step explanation:

EDGE2021

As the number of swimmers increases, the amount of water in the pool tends to decrease.

Thus, option (A) is correct.

Given:

A scatter plot which shows he amount of water in the pool and the number of swimmers.

Now, from the scatter plot it can be seen that

As the number of swimmer increases there is no such change in amount of water.

There is only increase in a amount of water when the number of swimmers were between 60 to 70.

But at last the plot shows that the amount of water decrease.

Therefore, number of swimmers increases, the amount of water decrease.

Thus, option (A) is correct.

Learn more about Scatter plot here:

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What is the product of 1.65 and 1.05 x 10-27

Enter your answer in the box using standard notation. Use an initial 0 and a decimal point as needed

Answers

-9.675
That is your answer i think

FIND THE MISSING NUMBER
20 - s = 11?

Answers

s = 9
20-11=9
Annd dna

please answer this for me asap?

Answers

Answer:trapezoid 3 is the only right one

rectangle 1 and 2 are correct

parallelogram 3 is only correct

Step-by-step explanation:

sorry if i miss the first one

sorry about the random spamming- i really need help and this is the last question- xd.

no explanation is required just the correct answers :) Thanks!

- Roxy

Answers

All except 10!

because if u say it out loud it is x is greater than 12 so whats greater than 12 almost everything!

Truman is buying a teddy bear and flowers for his girIfriend. Flowers Galore charges $13 for the teddy bear and $0.75 per flower. Famous Florist charges $9 for the teddy bear and $1.25 per flower. Which inequality represents the number of flowers, f, Truman would need to buy to make Flowers Galore the cheaper option?

Answers

the answers is either f < 2 or f > 2

The inequality that would make Flowers Galore the cheaper option is 13 + 0.75f < 9 + 1.25f

How to determine the inequality?

At Flowers Galore, we have:

Teddy bear = $13

Flower = $0.75

At Famous Florist, we have:

Teddy bear = $9

Flower = $1.25

So, the expressions are:

Flowers Galore: 13 + 0.75f

Famous Florist: 9 + 1.25f

When Flowers Galore is the cheaper option, we have:

13 + 0.75f < 9 + 1.25f

Hence, the inequality that would make Flowers Galore the cheaper option is 13 + 0.75f < 9 + 1.25f

Answers

Answer:

the Answer is C

Step-by-step explanation:

The metal needs to be 16/3 mg in weight to get the required alloy.

We can use the third equation,

(a(0.38) + 5(1.00))/(a+5) = 68/100

to solve the problem.

What do we mean by Percentage?

A percentage is a ratio where a number is shown as a fraction with respect to 100 parts of it. To remove the percentage sign we divide the number by 100.

How do we solve the given problem?

We are asked to mix a certain quantity of metal in mg containing 38 percent of nickel to 5 mg of pure nickel such that the new alloy contains 68 percent of nickel.

Let the quantity of metal taken to be 'a' mg.

∴ Nickel provided by the metal is 38% of a,

or, (38/100)*a

or, a(0.38)

We took 5 mg of pure nickel so it is 100 percent pure,

∴ Nickel in the alloy from pure nickel = 100% of 5

or, (100/100)*5

or, 5(1.00)

Total weight of the alloy = a + 5

Total nickel in the alloy = a(0.38) + 5(1.00)

We are said that the alloy constitutes 68 percent of nickel,

∴ (a(0.38) + 5(1.00))/(a+5) = 68%

or, (a(0.38) + 5(1.00))/(a+5) = 68/100

This is the equation needed to find the quantity of metal used to make the alloy. It is the same as option 3.

On solving the equation we get that the required quantity of the metal is 16/3 mg.

Learn more about Percentages at

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please help im almost a bit close, i’ll mark and brainlest please be serious or i will take my points back.

shoutout:
brainly.com/app/profile/19154158/answers

Answers

Answer:

Step-by-step explanation:

The median shows the midpoint of the data, so for a box and whisker plot the median would be the number that splits the box. for this question the median would be 22

Answer:

Step-by-step explanation:

The median lands on 22

On some graph paper, graph these points in a coordinate plane: (-2, 3), (2, 3), (2, -3), (-2, -3). Connect all the points. Describe the figure that you see.
plz no links

Answers

Awnser is in the photo like fr?

[tex]\frac{7}{y} x \frac{2}{7}[/tex]

Answers

This answer is 2/y I’m most definitely sure !

Answer:

23.5

Step-by-step explanation:

DONT REPORT MY QUESTION ITS FOR MY SCIENCE Experiment

would any of you wonderful people here be interested in answering a few questions on this go.ogle forms quiz....

Answers

Answer:

nah am good thanks anyway

Alan is tiling a 6 ft-by-8 ft rectangular floor with square
tiles that measure 4 in. on each side. How many tiles
does Alan need to cover the floor?

Answers

Answer:

he would need 21 tiles on each side. I think

Step-by-step explanation:

20 tiles to cover the floor
Explanation: 12inches=1ft
Floor:6ft8in
Three 4inch tiles=1ft
If there’s 18 4inch tiles that’s 6 ft
And 4x2=8 inches

Mr. Hamilton surveyed his class to find the total number of hours each of his students slept the previous night. The histogram shows the results of the survey.

How many more students slept 4 – 7 hours than 12 – 15 hours?

Answers

Answer:

6 more students

Step-by-step explanation:

hope this helps

is this wrong?? if it is pls help me choose the correct answer

(choose the answer that best corrects the misplaced modifier in each sentence. )

Answers

you didn’t show an image?..:(

image?? how’s everyone’s day?

Can someone please help me figure out how to solve this?

Answers

Answer:

B. 48m²

Step-by-step explanation:

The formula for volume is length (base) times width times height, or LWH. If you break the shape into three separate areas, you can figure out the volume for each part and then add it up.

The large part on the bottom is 7m long, 2m across. Since we know the entire shape is 4m tall and the indent is 2m deep, we know that the height for the bottom part will also be 2m. 7 · 2 · 2 = 28.

The block on the left is 2m tall, 2m across, and its width is also 2m as shown by the measurement on the bottom-right. 2 · 2 · 2 = 8.

Finally, the block on the right is 2m tall, 3m across, with a width of 2m. 3 · 2 · 2 = 12. And when you add it all up, 28 + 8 + 12 = 48. Hope this helps! Feel free to ask any questions!

Mark and Carol are saving money for a trip. Carol always has $10 more dollars than Mark.

Create an equation that shows Carol's savings,c, in terms of Mark's savings, m.

PLEASE HELP I WILL DO MARK A BRAINELEST

Answers

Answer:

m+10=c

Step-by-step explanation:

Since Carol always has 10 more dollars the Mark, the equation should represents Mark's savings plus the extra $10 that Carol has.

M+10=c since 10 it’s 10 more than M

Point X is on a number line halfway between `-5` and `11`. What integer would represent point X?

Answers

the answer would be -2.2

Answer:

3 i think because 4 5 6 7 8 9 10 = 7 and 2, 1, 0, -1, -2, -3, -4, = 7

Step-by-step explanation:

And also you never put anwer to choose from.

Y ∈ [ 0, 11 ) assuming -5 and 11 are not included, as the word "between" suggests.

Can sum1 help me with this asap pls :)

Answers

5 units (extra characters......)

the answer would be 5 units

Why are the lit up portions of
the of Earth and Moons (in
the inner circle of the
diagrams) all pointing the
same way?
SUNLIGHT

GIVING BRAINLIEST

Answers

because the moon is reflecting the sun’s light (i’m not sure if that is the answer you are looking for)

HELP?! PLEASE?!
- Melanie started working at Zane's Car Wash. She recorded the number of car washes for each day during the months of October and November, and she displayed the results in the box plots shown below. Which statements best supports the information from the graph? *

Answers

Answer:

she washed more cars in October

Step-by-step explanation:

in November she washed 17 to 19 cars

in October she washed 22 to 24 cars

22 - 17 = 5 24 - 19 = 5

so she washed 5 more cars in October

plz mark brainliest if this helped you!!

5
why? i don’t feel like explaining

there are 6 boys and 5 girls in the debate class. kids are being selected to go present their work without getting opt-out where is the probability that a boy will be selected to present twice?

Answers

Answer:

30%?

Step-by-step explanation:

6 boys, 5 girls

first selection is a 6/11 chance it's a boy.

second seletion is a 6/11 chance it's a boy.

6/11 times 6/11 is... 0.2975 or about a 30% chance ( i think)

Just multiply the probability of the first event by the second. For example, if the probability of event A is 2/9 and the probability of event B is 3/9 then the probability of both events happening at the same time is (2/9)*(3/9) = 6/81 = 2/27.

ANSWER FOR BRAINLIEST AND PLEEASEE EXPLAIN :)

Answers

Answer: I think Value of x is 8 I’m not sure

Answer:

Step-by-step explanation:

the right angle is 90 degrees, the line is 180 so 180-90 is 90 so 6X+4 + 5X-2= 90 you can counter the -2 by using the +4 so it just becomes +2 90-2=88 so the answer is 8

Find the volume of a cylinder. Round your answer to the nearest tenth. Do not add a comma.

B = 135.6 ft2

h = 11.2 ft

Answers

Answer:

Step-by-step explanation:

Base -- find the radius

radius -- 67.8 (135.6^2 /2)

h=11.2

Volume = 2385.59

2385.60

Answer all three to get Brainly please :<
No websites please, They cause viruses to your Laptop

Answers

1) 5 pounds
2) 1,431 feet
3) $33

Find the surface area of the prism or pyramid. Round to the nearest whole number if necessary.

Answers

Answer:

28cm^2

Step-by-step explanation:

(6*2)/2 = 6 # 1 triangle area

6 * 4 = 24 # multiplying it by 4, since the pyramid has 4 walls made of triangles.

2 * 2 = 4 # foundation is made out of square.

24 + 4 = 28cm^2 # now we just combine it together.

PLLLLLLLLLEEEEAAAASSSSEEEEE HELP

FIND THE SURFACE AREA OF THE PRISM. WRITE YOUR ANSWER AS A DECIMAL.

Answers

Answer:

382.5 inches squared

Step-by-step explanation:

(9x10) + (9x9) + ((9x10)/2)x2 + (13.5x9)

90 + 81 + 90 + 121.5

382.5 inches (squared)

Write an equivalent expression? Explain your reasoning. (t+t+t) +7t-6/(t+t+t)+2t-3

Answers

Answer:

Step-by-step explanation:

Combine any like terms on each side of the equation: x-terms with x-terms and constants with constants. Arrange the terms in the same order, usually x-term before constants. If all of the terms in the two expressions are identical, then the two expressions are equivalent.

Answer:

10t-6/5t-3

Step-by-step explanation:

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