Mathematics High School

I need help thank you

Answers

Answer 1

Answer:

Step-by-step explanation:

90+ (50-10)= 130+50=180

Answer 2

Answer: C

Explanation: The answer above is correct.

Related Questions

Which of the following situations are equal to 20%? Select all that apply.

A) 5 out of 25
B) 8 out of 40
C) 2 out of 8
D) 16 out of 80
E) 12 out of 24

Answers

Answer:

all except C.

Step-by-step explanation:

Answer: A AND C IT SHOULD BE A BECAUSE IF YOU LOOK AT THE %

HELP ME AGAIN I MIGHT PASS

Answers

Answer:

x=70

Step-by-step explanation:

it's 70 because 50 and 20 is proportional to x

Answer:

Step-by-step explanation:

The angles <FEB and <AEG are vertical angles. This means they have the same measurement. To find <FEB add the two angles <FED and <DEB together. This equals 70; therefore, x must also be equal to 70 degrees.

A population of 1,996 unicorns is going extinct at a rate of about 24 unicorns per year. A separate population of 1,229 dragons is going extinct at a rate of about 11 dragons per year. After how many years will the two populations be equal?

Answers

Answer:

https://youtu.be/QZ_a8VXhiSc

Step-by-step explanation:

https://youtu.be/BX0K5IfPMOA

Which fraction is equivalent to 33%? (in simplest fraction form)
334%
A)
M
B)
2.
3
.
Alw
D)
wilw

Answers

Answer:

Step-by-step explanation:

33% = 33/100

Can i get help please and thanks

Answers

Answer: 9.21954

it’s pythagorean theorem btw :)

WILL MARK AS BRAINLIST
The number 5.2 is which type of number?

Answers

5.2 is a Decimal number! Have a great day

Answer:

It is not an "integer" because it is a "decimal value".

It is not "irrational" because the decimal value terminates and does not repeat.

In a sale, the price of a sofa is reduced by 70%. The sale price is £255 What is the price before the sale?

Answers

So 255 is 30% of the original price
So what we need to do is divide 255 by 30 to get one percent
255/30=8.5
So 8.5 is one percent of the original price or one hundredth. So to get the original price multiply that by 100 and get 850.
The original price was £850.

Answer:

850

Step-by-step explanation:

Price x .30 (100%-70%)=sales price

price x .30 = 255

price = 255/.30

price = 850

please help me im bad at math and i math you as brainlest if you help me

Answers

Answer:

1st one

Step-by-step explanation:

1st one lolllslslslslslslslsls

help pppppppppp

don’t mind harry potter and coco melon

Answers

Answer:

It is the forth one

Step-by-step explanation:

to long to explain

Answer:

Step-by-step explanation:

Number 4

A student's course grade is based on one midterm that counts as % of his final grade, one class project that counts as % of his final grade, a set of homework assignments that counts as % of his final grade, and a final exam that counts as % of his final grade. His midterm score is , his project score is , his homework score is , and his final exam score is . What is his overall final score? What letter grade did he earn (A, B, C, D, or F)? Assume that a mean of 90 or above is an A, a mean of at least 80 but less than 90 is a B, and so on.

Answers

Answer:

The overall score is 75.6

Letter grade is C

Step-by-step explanation:

The question has missing details (See comment section for complete question).

From the complete question, we have:

Proportion:

[tex]Midterm = 15\%[/tex]

[tex]Project = 25\%[/tex]

[tex]Assignment = 40\%[/tex]

[tex]Exam = 20\%[/tex]

Scores

[tex]Midterm = 66[/tex]

[tex]Project = 90[/tex]

[tex]Assignment = 75[/tex]

[tex]Exam = 66[/tex]

Solving (a): The overall score

To do this, we simply calculate the mean of the given data.

The mean is calculated by multiplying each proportion by the scores..

So, we have:

[tex]Overall = 15\% * 66 + 25\% * 90 + 40\% * 75 + 20\% * 66[/tex]

[tex]Overall = 9.9 + 22.5 + 30 + 13.2[/tex]

[tex]Overall = 75.6[/tex]

Solving (b): The letter grade

From the question, we have:

[tex]A: Mean \ge 90[/tex]

[tex]B: 80 \le Mean < 90[/tex]

[tex]C: 70 \le Mean < 80[/tex]

The overall score falls in the following category:

[tex]C: 70 \le Mean < 80[/tex]

Because:

[tex]70 \le 75.6 < 80[/tex]

Hence, the letter grade is C

Find the slope and y intercept

Answers

slope: 5/1 (5 if simplified)
y-intercept: 10

A number, x, rounded to 1 decimal place is 3.7
Write down the error interval for x.

Answers

Answer:

The error in rounding a number is half of the unit of measure. The number was rounded to the nearest 0.1 unit so the error is half of 0.1 which is 12⋅0.1=0.05

⋅0.1=0.05. Since 3.7+0.05=3.753.7+0.05=3.75 and 3.7−0.05=3.653.7−0.05=3.65, then the error interval is \boxed{3.65\le x<3.75}.

Step-by-step explanation:

Mathhhhhhh which ones about slope are true

Answers

Answer:

i think it is, the second one and the fourth one

Step-by-step explanation:

HELP NEEDED!!!! this is for math and needs to be due at 8. please help me!

Answers

Answer:

1/3

Step-by-step explanation:

So remember slope is y/x.

THe y value is 1st y minus 2nd y. In this case 6-4. This gets you 2

The x value is 1st x minus 2nd x. In this case 8-2. This gets you 6

Put the y and x value into your fraction(y/x) and you get 2/6.

This can be simplfyied as 1/3

Answer

1/3

Ti⊂k∫∈s ω∅∅p

What is the surface area of the rectangular prism shown above?

Answers

Answer:

The surface area of the rectangular prism is [tex]160in^2[/tex].

Step-by-step explanation:

The surface area of a 3-dimensional shape is found by adding the area of each side of the shape together. In this case, the areas of each side of the rectangular prism are 20 in, 20 in, 50 in, 50 in, 10 in, and 10 in. Find the surface area by adding each area together and you'll get [tex](50*2)+(20*2)+(10*2)=100+40+20=160in^2[/tex].

Answer:

The answer would be 160 .

Step-by-step explanation:

Good luck honey

4 L = ___mL pls help

Answers

4000 mL

There is 1000 mL in a Liter

so multiply 4 x 1000

I need help solve this problem please

Answers

Answer:

X=5

15x=75

Step-by-step explanation:

2x + 10 =28
What is the solution to this equation?

Answers

X= 9
Work:
2x + 10= 28
2x-10= 28-10
2x= 18
X= 18/2 which equals 9

If anyone can help :)

Answers

Answer:

irrational

Step-by-step explanation:

reason

[tex] - \frac{5}{52} [/tex]

I need help ASAP will give brainliest
Divide 1000 into two parts such that one part is a multiple of 47 and the other is a multiple of 19 ( Show me your working)

Answers

= 1000

I know

I think hope this helps

sunglasses cost 70 euros. the exchange rate is 1 euro = 0.859

Answers

Answer: 60.13 USD

Step-by-step explanation: 0.859 x 70 = 60.13

b) 1325 + 13 long division

Answers

Answer:

1325 divided by 13 is 101.92 rounded to the nearest hundredth

Step-by-step explanation:

I'm not sure what the question is asking though.

3x-5>-41
Solving inequality

Answers

Answer:

x [tex]\geq 11[/tex]

Step-by-step explanation:

x can equal anything -11 and above

All the real numbers have reciprocal except

Answers

All real numbers except 0 have reciprocals. The reciprocal of a negative number must itself be a negative number so that the number and its reciprocal multiply to 1.

Hope this helps!

Calculating Circumference

Answers

Circle A is r=1.5 d=3 c=9.42478
Circle B is r=5 d=10 c=31.41593
Circle C is r=2.25 d=4.5 c=14.13717
Circle D is r=3 d=6 c= 18.84

Remove brackets using the distributive law: -9(2r - 3s) *

Answers

The answer is -18r + 27s! :)

Answer:

-18r + 27s

Step-by-step explanation:

You would multiply 2r and -3s by -9.

Exercise #4: Which of the following equations would model an exponential quantity that begins at a level of
16 and decreases at a constant rate of 8% per hour?
(1) Q =16(0.92)
(3) Q =16(1.08)
(2) Q = 16+0.92
(4) Q =16(-7)

Answers

The answer to the question is 3

y = x2 + 12x + 30
8x − y

Answers

8x - x2+ 12x +30
6x+12x +30
18x +30

8x- x2 +12x +30
-4x -x2 + 30

If the x2 was a mistake ignore the second one. The first should be correct.

Malik has 3 boxes of baseball cards. Each box has 2 containers with 8 cards in each container.

Malik multiplies 8 x 2 and gets 16.

He then multiplies 3 x 2 and gets 6.

Then he multiplies 16 x 6 and comes to his final answer of 96.

Do you agree with Malik? Why or why not?

Answers

Answer:

Step-by-step explanation:

I think he did the first step correct, 8×2=16.

He did that because in each box there are 2 containers with 8 cards. so all together there are 16 cards in each box.

But then he should've multiplied 16×3=48 because there are three containers with the 16 cards.

What expression can be used to solve 2/5 divided by 3/4 = ?
Move numbers and a symbol to the boxes to show the expression.

Answers

Answer:

0.53 then, search up 0.53 as a fraction and that's your answer. subscribe to amiredagoat Yt

Step-by-step explanation:

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