Mathematics High School

Steel is a mixture of iron, carbon, and other elements. The table shows the number of parts each element in two different-sized samples of steel.

A table with the composition of two samples is shown. Sample one is ninety parts iron, three parts carbon, and seven parts other elements. Sample two is forty-five parts iron, one and a half parts carbon, and three and a half parts other elements.

Question 1
Part A

What is the unit rate of parts iron to parts carbon?

Enter the correct answer in the box.

parts iron per part carbo

Answers

Answer 1

Answer:

Step-by-step explanation:

Sample One, Parts and %      Sample Two, Parts and %

 Fe    90          (90%)                           45             (90%)

   C      3           (3%)                               1.5              (3%)

Other   7            (7%)                            3.5             (7%)

          100 parts                           50 parts

Parts Fe/Parts Carbon = 90/3 or 30/1  in both cases [45/1.5 = 30/1]

Related Questions

Find the slope of the line represented by the data below x| 0 2 4 6 8
y|15 9 3 -3 -9
Slope=[?]

Answers

Answer:

it's answer is 10/-15.........

helpppppp plss thanks​

Answers

Answer:

I can even see anything can you reupload your answer, please?

Step-by-step explanation:

List three negative numbers that are between -8 and -1

Answers

Answer:

the answer is -5 -3 -7 but there are more

Answer:

-7,-6,-5,-4,-3,-2 they are alot but you can take what every number

Guys help plzzzzzzzzzzzzz?!!!!

Answers

[tex]-2z -18 = -6 \\\\\implies -2(z+9)=-6\\\\\implies z + 9 = 3\\\\\implies z = 3-9 = -6[/tex]

Write the equation of the line described below in point-slope form.

Answers

Answer:

just pay attention dude

Can someone please help me solve this please

Answers

Step-by-step explanation:

j(x) = 2x + 9

=> 2x + 9 = j(x)

=> 2x = j(x) - 9

=> x = [j(x) -9] / 2 = [67 - 9] / 2 = 58 / 2 = 29

What is the equation of the line in slope intercept form

Answers

Answer:

lope-intercept form, y=mx+b, of linear equations

Step-by-step explanation:

Korey completely covered a square counter top using 103.5 ftof tile without any overlap.
Which measurement is closest to the side length of this counter top in feet?
10 ft
O 11 ft
O 27 ft
O 55 ft

Answers

Answer:

10 ft

Step-by-step explanation:

10² = 100

11² = 121

Answer: 10 ft

x=-5y+2
x=3y-2
elmantion or substutuion

Answers

Answer:

y = 1/2

Step-by-step explanation:

x = -5y+2

x=3y-2

substitute for x ans solve

3y-2=-5y+2

8y-2=2

8y = 4

y= 4/8

y=1/2

What is the slope of the line with equation 2x−5y=52?

Answers

Answer:

m = 2/5

Step-by-step explanation:

2x - 5y = 52

-5y = -2x + 52

y = 2/5x - 52/5

The slope of the line with equation 2x−5y=52 is 2/5.

The given equation of line is 2x−5y=52.

What is the slope of a equation?

The slope formula is used to calculate the inclination or steepness of a line. It finds application in determining the slope of any line by finding the ratio of the change in the y-axis to the change in the x-axis.

The given equation 2x−5y=52 can be rewritten as

2x-52=5y

⇒ y = 2x/5-52/5

Now, compare y = 2x/5-52/5 with the standard form of an equation y=mx+c

So, m=2/5

Therefore, the slope of the line with equation 2x−5y=52 is 2/5.

To learn more about the slope of an equation visit:

https://brainly.com/question/13496015.

#SPJ2

Univariate statistical tests are most appropriate for testing hypotheses that compare the characteristics of two groups. Group startsTrue or False

Answers

Univariate statistical tests are most appropriate for testing hypotheses that compare the characteristics of two groups is False

Univariate statistical tests are statistical test that are used to observe a single variable. We can have one or more independent variables but we study only one dependent variable.

So, univariate statistical tests are not most appropriate for testing hypotheses that compare the characteristics of two groups.

So, Univariate statistical tests are most appropriate for testing hypotheses that compare the characteristics of two groups is False

Learn more about univariate statistical tests here:

https://brainly.com/question/13415579

If 15 & 36 are two sides of a right triangle what other number makes a Pythagorean Triples.

Answers

Answer:

39

Step-by-step explanation:

15^2 +36^2 = c^2

225 + 1296 = 1,551

√1551 = 39

2. Connor went to the carnival with S22.50. He bought a hot dog and a drink for $3.75, and he wanted to spend
the rest of his money on ride tickets which cost $1.25 each. What is the maximum number of ride tickets that he
can buy?
A. Define the variable.
B. Write tire inequality.
D. Write your conclusion/final answer.
C. Solve for the number of weeks that Keith can
withdraw money from his account.​

Answers

Answer:

15

Step-by-step explanation:

Which statement describes the sequence -9, -3, 3, 9, 15, ...?
O A.
an arithmetic sequence with common difference -9
O
B.
an arithmetic sequence with common difference 3
C.
an arithmetic sequence with common difference 6
ОО
O D. not an arithmetic sequence

Answers

Answer:

The answer is C

Step-by-step explanation:

An arithmetic sequence with common difference 6

(-3)-(-9) = 6

3 - (-3) = 6

9 - 3 = 6

15 - 9 = 6

4. What are the last TWO DIGITS of 2^2017

a Explain how you found the last 2 digits of 2^2017

b. Show how you found the last 2 digits of 2^2017

Answers

Compute 2²⁰¹⁷ modulo 100.

From the given table,

2²² ≡ 2⁴² ≡ 2⁶² ≡ 4 (mod 100)

and we have

2017 = 32 • 62 + 33

62 = 1 • 42 + 20

Then

2²⁰¹⁷ ≡ (2⁶²)³² • 2³³ (mod 100)

2²⁰¹⁷ ≡ 4³² • 2³³ (mod 100)

2²⁰¹⁷ ≡ (2²)³² • 2³³ (mod 100)

2²⁰¹⁷ ≡ 2⁶⁴ • 2³³ (mod 100)

2²⁰¹⁷ ≡ 2⁶² • 2²² • 2¹³ (mod 100)

2²⁰¹⁷ ≡ 4² • 2¹³ (mod 100)

2²⁰¹⁷ ≡ (2²)² • 2¹³ (mod 100)

2²⁰¹⁷ ≡ 2⁴ • 2¹³ (mod 100)

2²⁰¹⁷ ≡ 2¹⁷ (mod 100)

and from the table, we get

2²⁰¹⁷ ≡ 2¹⁷ ≡ 72 (mod 100)

An ice cream shop serves about 60 customers in one day. About how many customers does the ice cream shop serve in 40 days?

Answers

Answer:

2400

Step-by-step explanation:

60(customers/day) x40(days) = 2400 customers in 40 days

Find the slope of the line through each pair of points.
(19,-4), (-3,9)

Answers

Step-by-step explanation:

the slope of the line is expressed as the ratio

y coordinate change / x coordinate change

when going from one point to the other.

x changes by -22 (from 19 to -3)

y changes by +13 (from -4 to 9)

the slope is +13/-22 = -13/22

What is the square root of r^64

Answers

Answer:

the answer is 8

Step-by-step explanation:

because the (8)²is 8×8is 64

a family of four goes to a movie theatre and spends $26.50. they buy 2 tickets for adults, and 3 boxes of popcorn at $2.50 per box. what is the cost of one adult ticket

Answers

Answer:

$9.5

Step-by-step explanation:

3x2.50= 7.50

26.50-7.5 =19

19/2 = 9.5

9.5 for one adult ticket

Hi!

First, let's add (or multiply) the boxes of popcorn.

2.50 + 2.50 + 2.50 (or 2.50 x 3) is 7.50. so the popcorn all together is $7.50.

Next, we subtract the popcorn cost from the cost altogether.

26.50 - 7.50 = $19

Next, we divide the $19 by two.

19 ÷ 2 = 9.50

To make sure this is true, what we do is multiply 2 x 9.50.

2 x 9.50 = 19.

So 9.50 is your answer.

(NOTICE: your problem says a family of 4. you didn't give me the total for the other 2 people who were going to the movie, so this is just my estimate for just those 2 adults. If it's not correct, that is the reason why, otherwise, it is the answer.)

Hope this helps!

~~~PicklePoppers~~~

how do you turn radius into cm​

Answers

Answer:

depending on the question I suggest only converting at the end

sorry if it doesn't help

by the way a cm needs to be times by 100 to become a meter

I really need help on these 3 problems however helps me I just want to say god bless u and thanks for taking your time to answer my question #24, #28, # 29

Answers

Answer: how nice of you :) may god bless you too however You didn’t send the questions

The wire is 25 feet long is stretched from the top of a flagpole to the ground at a point 15 feet from the base of the pole .how high is the flag pole

Answers

Answer:

20 feet

Step-by-step explanation:

Using Pythagoras rule:

25^2 - 15^2

625 - 225

400

√400 = 20 feet

Points S, Q, R, and T all lie on the same line; Given. Arrows are drawn from this statement to the following three statements. Statement 1: The measure of angle SQT equals 180 degrees; Reason 1: Definition of a Straight Angle. Statement 2: The measure of angle SQV plus the measure of angle VQT equals the measure of angle SQT; Reason 2: Angle Addition Postulate. Statement 3: The measure of angle SQV plus the measure of angle VQT equals 180 degrees; Reason 3: Substitution Property of Equality. Lines UV and WZ are parallel; Given. An arrow is drawn from this statement to the following statements. Statement 4: The measure of angle VQT plus the measure of angle ZRS equals 180 degrees; Reason A. Statement 5: The measure of angle SQV plus the measure of angle VQT equals the measure of angle VQT plus the measure of angle ZRS; Reason B. An arrow also points from Statement 3 to Statement 5. An arrow from Statement 5 points to the following statements. Statement 6: The measure of angle SQV plus the measure of angle VQT minus the measure of angle VQT equals the measure of angle VQT plus the measure of angle ZRS minus the measure of angle VQT, the measure of angle SQV equals the measure of angle ZRS; Reason C. Statement 7: The measure of angle SQV is congruent to the measure of angle ZRS; Definition of Congruency.

Which theorem accurately completes Reason A?

Alternate Interior Angles Theorem
Corresponding Angles Theorem
Alternate Exterior Angles Theorem
Same-Side Interior Angles Theorem

Answers

9514 1404 393

Answer:

  (d)  Same-Side Interior Angles Theorem

Step-by-step explanation:

Of the offered choices, only one deals with supplementary angles:

  Same-Side Interior Angles Theorem

_____

A diagram would be helpful. We have to assume here that WZ passes through R, and that Z is on the same side of ST as is V. If that is not the case, then the problem makes no sense.

Of the pies that Lorenzo's Pie Shop sold last month, 1/2 were blueberry pies and 2/5 were blackberry pies. What fraction of the pies sold were either blueberry or blackberry?

Answers

Assuming that blueberry blackberry combination pies aren’t a thing,

Then the answer is 9/10

This problem involves adding fractions with different denominators. For this type of problem you can change the value of the denominators in each fraction to equal the same thing. Since they are fractions, the overall value will not change if you multiply the numerator and denominator by the same number.
We add 1/2 of the blueberry and 2/5 of the blackberry this will give us 9/10.Firstly we found the LCM of their denominator which is 10,you divide the ten by the denominator of 1/2 which is 2 and multiply by the numerator which is 1,it will make 5 and we put the plus sign you repeat the same process with 2/5 which will give you 4.You then add 4+5 which will make 9 the numerator and 10 as the denominator.

Mark me as brainliest plsssss
Hope I help

Anitha types 200 words in half an hour How many words will she type in 12 minutes , if typing speed remains the same

Answers

Answer:

she'll type 80 words.

Step-by-step explanation:

200/x=30/12

x=(200×12)/30=80

Please help, I would really appreciate it.

Answers

for 2/5(x-4)-10, x=29. For y=mx+b, x= y-b/m

4 pounds of grapes cost 5$ 7 pounds of grapes cost $8.75. What is the cost per pound?

Answers

Answer:

$1.25 per pound

10 to the power of -2 as a fraction

Answers

Answer:

Step-by-step explanation:

10 to  the power of -1 = 0.1

10 to the power of -2 = 0.01

0.01 as a fraction =

1/10000

because

10 = 1/10  or 10/100

1= 1/100

0.1 = 1/1000

0.01 - 1/10000

Answer:

1/100

Step-by-step explanation:

10^2 is 100 so 10^-2 would be 0.01 or 1/100

Represent the following on a line graph
Time Temperature o F

­5: 00 AM - 40

8:00 AM - 50

11: 00 AM - 60

2: 00 PM- 60

5: 00 PM- 30

8:00 PM- 20

If you could like draw one and attach it or a online version that would be great just need it represent.

Answers

Co-ordinates will be

(5,40)(8,50)(11,60)(14,60)(17,30)(20,20)

PLS HELP ASAP ILL GIVE BRAINLKEST THANKS

Answers

Answer:

1

Step-by-step explanation:

"exceeds"= greater than

d is greater than 7 hours

d > 7

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