Mathematics High School

I NEED HELP ASAP PLEASEEE!!!! WILL GIVE BRAINLIEST !!
Hannah and Becky are learning to type on a cormputer keyboard. Hannatfs
typing speed is represented by the equation y = 11z vwhere y is the nurnber of
words she types and x is the nurmber of minutes, Becky's typing speed is
given by the graph.
60
36
1
2
Time (minutes)
4

Answers

Answer 1

Answer:

it's d credit to the people who said it

Answer 2

Hanna's typing speed is one word fewer than that of Becky's speed.

What is the general equation of a Straight line? What is equation modelling?

The general equation of a straight line is -

y = mx + c[m] → is slope of line which tells the unit rate of change of [y] with respect to [x].[c] → is the y - intercept i.e. the point where the graph cuts the [y] axis.

Other possible equations of lines are -

(y - y₁) = m(x - x₁) {Point - slope form}(y - y₁) = (y₂ - y₁) × (x - x₁)/(x₂ - x₁) {Two point - slope form}x/a + y/b = 1 {intercept form}x cos(β) + y sin(β) = L {Normal form}

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given are Hannah and Becky, who are learning to type on a computer keyboard. Hanna's typing speed is represented by the equation y = 11z. Becky's typing speed is given by the graph as shown in the question.

Now, for Hanna, her typing speed would be -

11 words per minute

For Becky, the slope of the graph will be -

m = (24 - 12)/(2 - 1)

m = 12

12 words per minute

It can be seen easily that Hanna's typing speed is one word fewer than that of Becky's speed.

Therefore, Hanna's typing speed is one word fewer than that of Becky's speed.

To solve more questions on equations, expressions and polynomials, visit the link below -

brainly.com/question/17421223

#SPJ2

Related Questions

What is 3a + 2b - 6c?
A = 3
B = 2
C = 12

Answers

Answer:

-59

Step-by-step explanation:

3(3)+2(2)-6(12)

Answer: -59

Step-by-step explanation:

3a + 2b - 6c

a = 3 b = 2 c = 12

Substitute

3 (3) + 2 (2) - 6 (12)

9 + 4 - 72

13 - 72

-59

Simplify: (-3y5)3
-9y8
-9y15
-27y8
-27y15

Answers

Answer:

(-3y5)3

-9y15

Step-by-step explanation:

prove me wrong

Explain how you solved this problem.

Answers

Answer:

(-20)

Step-by-step explanation:

-4 - 2(4 + (-2) )³ = -4 - 2(4 - 2)³

= -4 - 2*(2)³

= -4 - 2* 8

= -4 - 16

= -20

Start with PEMDAS.
Do (4+-2) (4+-2) (4+-2)
Then multiply your answer by 2, so you’ll have -2(8), which gives you -16,
Lastly you would have -4-16
And then your final answer would be -20

George spent 32,000 points for an upgrade in a video game. He spent 5/8 of the points on a castle and the rest on a spell. How many points did George spend on the castle and how many did he spend on the spell?

Answers

Answer:

He spent 20,000 points on the castle and 12,000 points on the spell.

Step-by-step explanation:

It says that he spent 5/8 points on the castle

32000/1 x 5/8 = 20,000

We got our points for the castle. Now we need to find how many points for the spells, which is the remaining. 32000-20,000=12,000

This means that 20,000 points are used on the castle and 12,000 on the spell.

Answer:20000 and 12000

Step-by-step explanation:

(4) B is the midpoint of AC, D is the midpoint of CE, find BD.

Answers

Answer:

A :10.5 is the answer

Step-by-step explanation:

Angle EFG has a measure of 133º. Triangle EFG is rotated 180° counterclockwise about point F to create triangle E'F'G'.

what is the measure of angle E’F’G

Answers

Answer:[tex]313^{\circ}[/tex]

Step-by-step explanation:

Given

[tex]\angle {EFG}=133^{\circ }[/tex]

When rotated 180 degree clockwise gives E'F'G' which measures

[tex]\angle E'F'G'=180^{\circ}+133^{\circ}=313^{\circ}[/tex]

This can be explained by the below-given digram

Rotation is a rigid transformation.

The measure of angle E'F'G' is 133 degrees

Because rotation is a rigid transformation, it does not change the side lengths and the angle measures.

This means that the measure of angle EFG will remain unchanged after rotation.

i.e.

[tex]\mathbf{\angle E'F'G' = \angle EFG}[/tex]

Hence, the measure of angle E'F'G' is 133 degrees

Answers

Answer:

4 oil changes

Step-by-step explanation:

Given that:

Distance after first oil change = 5000 miles

Subsequent oil changes = 3300 miles

If distance in miles moved per week = 250 m

Number of weeks per year = 52

Total miles moved per year = (250 * 52) = 13000 miles

Let Number of oil change per year = n

Difference between successive oil change = d = 3300 miles

Using the relation :

Total miles = Ist change + (n - 1)d

13000 = 5000 + (n - 1)3300

13000 = 5000 + 3300n - 3300

13000 = 1700 + 3300n

13000 - 1700 = 3300n

11300 = 3300n

n = 3.424

Hence, number of oil. Changes in first year = 4

will mark brainliest! in kite UVWX, m

Answers

Answer:

Step-by-step explanation:

Write 0.4% as a fraction or mixed number in simplest form.

Answers

Answer:

1/250

Step-by-step explanation:

0.4% = 0.004 = [tex]\frac{4}{1000}[/tex]

divide numerator and denominator of [tex]\frac{4}{1000}[/tex] by 4 to get [tex]\frac{1}{250}[/tex]

which expression shows the correct way to expand (6x-6)^2?

Answers

Answer:

[tex](6x -6)^{2} = (6x +6)(6x +6) = 36x^{2} -72x + 36[/tex]

Step-by-step explanation:

Even if I don't know the options I can give all the option that will be right for expending this. Just look at each step and see which one is one of the options.

[tex](6x -6)^{2} = (6x +6)(6x +6) = 36x^{2} -72x + 36[/tex]

100 pts PLZ HELPPPPP
Which recursive formula fits the following pattern? 50, 25, 12.5, 6.25, 3.125...

Answers

Answer:

1.5625

Step-by-step explanation:

Find the ratio (r) between adjacent members: 50,25,12.5,6.25,3.125

a_2/a_1=25/50=0.5

a_3/a_2=12.5/25=0.5

a_4/a_3=6.25/12.5=0.5

a_5/a_4=3.125/6.25=0.5

The ration (r) between every two adjacent members of the series is constant and equal to 0.5 thus:

a_6 =a_1×(^r6-1) =a_1×r^5 =50×0.5^5 =1.5625

____________________________

Jane mixes 3 gallons of red paint (r) for every 6 gallons of blue paint (b). Write one equations that show the relationship between red paint and blue paint. Use lower case r and b (NO SPACES)

Answers

Answer:

umm 9 gallons i think

Step-by-step explanation:

A florist is making bouquets. Draw lines to match each
description with the number of bouquets she can make.
52 bouquets
630 roses with 10 roses in each bouquet
53 bouquets
640 roses with 12 roses in each bouquet
54 bouquets
975 roses with 18 roses in each bouquet
63 bouquets
1,250 roses with 24 roses in each bouquet

Answers

Answer:

1) 630 roses with 10 roses in each bouquet = 63 bouquets

2) 640 roses with 12 roses in each bouquet = 53 bouquets

3) 975 roses with 18 roses in each bouquet = 54 bouquets

4) 1,250 roses with 24 roses in each bouquet = 52 bouquets

Step-by-step explanation:

We need to match each description with the number of bouquets that can be made.

Solving this, we need to make bouquet of roses and each bouquet contains the given number of roses. We need to divide the total roses available by number of roses in each bouquet to find number of bouquets.

The formula used will be: [tex]Number\:of\:bouquets=\frac{Total\;roses}{Number\:of\:roses\:in\:each\:bouquet}[/tex]

1) 630 roses with 10 roses in each bouquet

Total roses = 630

Number of roses in each bouquet = 10

So, number of bouquets will be:

[tex]Number\:of\:bouquets=\frac{Total\;roses}{Number\:of\:roses\:in\:each\:bouquet}\\Number\:of\:bouquets=\frac{630}{10}\\Number\:of\:bouquets=63[/tex]

So, 63 bouquets can be made.

2) 640roses with 12 roses in each bouquet

Total roses = 640

Number of roses in each bouquet = 12

So, number of bouquets will be:

[tex]Number\:of\:bouquets=\frac{Total\;roses}{Number\:of\:roses\:in\:each\:bouquet}\\Number\:of\:bouquets=\frac{640}{12}\\Number\:of\:bouquets=53.3 \approx53[/tex]

So, 53 bouquets can be made.

3) 975 roses with 18 roses in each bouquet

Total roses = 975

Number of roses in each bouquet = 18

So, number of bouquets will be:

[tex]Number\:of\:bouquets=\frac{Total\;roses}{Number\:of\:roses\:in\:each\:bouquet}\\Number\:of\:bouquets=\frac{975}{18}\\Number\:of\:bouquets=54.1\approx54[/tex]

So, 54 bouquets can be made.

4) 1,250 roses with 24 roses in each bouquet

Total roses = 1250

Number of roses in each bouquet = 24

So, number of bouquets will be:

[tex]Number\:of\:bouquets=\frac{Total\;roses}{Number\:of\:roses\:in\:each\:bouquet}\\Number\:of\:bouquets=\frac{1250}{24}\\Number\:of\:bouquets=52[/tex]

So, 52 bouquets can be made.

m = 3 (4,7)
Wrote the equation of a line using the point slope formula

Answers

Answer:

y = 3x - 5

Step-by-step explanation:

Point-slope form: y - y₁ = m(x - x₁)

Substitute the values for the variables.

y - 7 = 3(x - 4)

y - 7 = 3x - 12

y = 3x - 5

Answer:

good luck

Step-by-step explanation: you gonna need it UvU

Hurry up please I have 27 minutes to anwser 25 guestions

Answers

It would be the second choice. Add by 25.

Answer:

C. The relationship between the quantities is: add 25.

Step-by-step explanation:

1x = 25y,

2x = 25 + 25 = 50y

3x = 50 + 25 = 75y

4x = 75 + 25 = 100y

Note:

As you can see, every time the number goes up on the chart, it goes up by 25 and you can find that out by just simply adding 25 to the first number and seeing if it matches up with the next, (which I did above).

Write an algebraic expression for the phrase. Six times a number h plus seven.

Answers

Answer:

6 x h + 7

Step-by-step explanation:

ABCD is a parallelogram. AB = x + 16, AD = 4y – 4, CD = 2x + 8. If the perimeter of ▱ABCD is 80, find the value of y.

Answers

Answer:

Coronavirusss

Step-by-step explanation:

Stay at home :D

Guy looks at his checking account balance and sees that it is less than −10 dollars.

Select from the drop-down menu to correctly complete the statement.

An account balance less than−10 dollars represents a debt
Choose...
10 dollars. is t greater less or = to

Answers

Answer:

greater than

Step-by-step explanation:

Can someone help me please?

Answers

Answer:

[tex]x=\sqrt{12}[/tex]

Step-by-step explanation:

The Pythagorean theorem states that [tex]a^2+b^2=c^2[/tex] in a right triangle where c is the longest side. To solve for x, we plug in the side lengths given as a and c.

[tex]a^2+b^2=c^2\\2^2+x^2=4^2[/tex]

Move 2² to the other side to isolate b²

[tex]x^2=4^2-2^2[/tex]

Square root both sides to isolate b

[tex]x=\sqrt{4^2-2^2}\\x=\sqrt{16-4} \\x=\sqrt{12}[/tex]

I hope this helps!

HELPPPP I NEEED THIS NOWWW
The value of 23 + 42 = ___.

Answers

Answer:

Step-by-step explanation:

Answer:

2^3 + 4^2 = 24

Step-by-step explanation:

2 times 2 times 2 is 8

4 times 4 is 16

So, 16 + 8 = 24

I hope I helped! Pls mark me brainliest if you can!

a factory could produce 84 toy robots in one day. They purchased some new equipment. Now they can produce 105 robots in one day. what is the percent gain?

Answers

Answer:

The answer to the question is

25 % increase in production rate

Step-by-step explanation:

To solve the question, we note that

Initial number of products = 84 toy robots per day

Present production rate = 105 robots per day

The percentage increase is given by the increase in production rate divided by the original production rate multiplied by 100

Where increase in production rate = 105 - 84 = 21

Percentage increase = 21/84 ×100 = 25 % increase

If the sum of the measures of the interior
angles of a polygon is 1930°, how many sides
does it have?

Answers

Answer:

Thus, the number of sides: n ≈ 13 (rounded to the nearest whole number).

Step-by-step explanation:

We know that the formula of the sum of the measures of the interior angles of a polygon

Sum = (n-2) × 180°

where

n is the number of sides

In your case, since the sum of the interior angles is 1930°, then

1930° = (n-2) × 180°

so we can determine the number of sides n, such as

1930 / 180 = n-2

[1930 / 180] + 2 = n

n ≈ 12.7

If 12.7 rounded to the nearest whole number, then

n ≈ 13

Thus, the number of sides: n ≈ 13 (rounded to the nearest whole number).

help with this .........

Answers

9514 1404 393

Answer:

x = 30

Step-by-step explanation:

Supplementary angles total 180°.

5x° +x° = 180°

6x = 180

x = 180/6 = 30

The value of x is 30.

Andre’s school orders some new supplies for the chemistry lab. The online store shows a pack of 10 test tubes costs $4 less than a set of nested beakers. In order to fully equip the lab, the school orders 12 sets of beakers and 8 packs of test tubes.

Write an equation that shows the cost of a pack of test tubes, , in terms of the cost of a set of beakers, .

Answers

Answer:

Step-by-step explanation:

y=2x+2 y+4=2(x-3)
What is the solution of the system of equations?

Answers

Answer: y = 2x + 2

y + 4 = 2 (x − 3)

Note sure but hope this helped!!!

a rectangular prism has a volume of 4x^3 - 40x^2 + 36x

Answers

Oop yu don’t kno da answerrrrr yu a lil slowwwwwwww 555 wit 10 ?

Stanley has a collection of seashells. He found 35% of his collection on Florida beaches. If Stanley has 49 seashells from Florida, how many seashells does he have in his collection all together?
A) 90
B) 120
C) 140
D) 160

Answers

Answer:

140 shells. So, C

Step-by-step explanation:

Let x equal the total number of shells in Stanley's collection. Then,

.35 x = 49

x = 49 / .35

x = 140

The figure below is the graph of the dimensions of a rectangle whose adjacent side lengths exhibit Inverse Variation (1,4) (2,2) (8,0.5) (16,0.25)

Answers

Answer: true

Step-by-step explanation:

help please need this answer like now

Answers

Answer:

1/y^10

Step-by-step explanation

evaluate 5^-1/ -9^0 to its simplest form

Answers

Answer:

-1/5

is it -(9)^0 or (-9)^0 if it -(9)^0 then

+ 5^-1/ -9^0 = 5^-1/-1

=-5^-1

=-1/5

-1/5
5^-1=1/5 and -9^0=-1 (as anything with the power 0 equals to 1)
And then reciprocal it
So, 1/5 times -1 = -1/5

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