Mathematics High School

Lorraine and Bea are learning to type on a computer keyboard, Lorraine's
typing speed is represented by the equation y = 9x where y is the number of
words she types and is the number of minutes, Bea's typing speed is given by the graph

Lorraine And Bea Are Learning To Type On A Computer Keyboard, Lorraine'styping Speed Is Represented By

Answers

Answer 1

Answer:

A

Step-by-step explanation:

I took one for the team

Answer 2

Answer:

yes for the exam its a

Step-by-step explanation:

Related Questions

Bula went to Target and bought a new jacket. The price tag said $85 but the sign on the rack said
20% off the price tag. How much did Bula pay for the jacket?
$17
$65
$70
$68

Answers

Answer:

she paid 68 so it is d i think

The answer is $65 i hope this help :)

The graph below relates y, the distance Kelly walked, to x, the amount of time that Kelly walked. What is the value of y when x = 1 ?

Answers

Answer:

You need to show the graph.

Step-by-step explanation:

I WILL GIVE BRAINLEST!!!!!!!


Angela has 5 fewer quarters than twice the number of her dimes. If d represents
the number of dimes Angela has, which expression represents the total number of
Angela’s quarters and dimes?
A. 2d – 5
B. 5 – 2d
C. d + (2 – 5d)
D. d + (2d – 5)


PLSSS SHOW YOUR WORK PLSSSS

Answers

Answer:

A

Step-by-step explanation:

Answer: A

Step-by-step explanation:

Let’s say that she has 10 dimes. 2(10)-5=Q

20-5=15

15 quarters

We doubled her dimes, and subtracted 5 to find quarters.

You can fill anything for D and remind true

10.) Sally cooks 6 pies and each pie is cut into 8 pieces. If she sells 36 pieces, what percentage did she sell

Answers

75%, look at picture for work
75% because 36/48 is 0.75

2. What is the solution to the equation
1/2x + 3/2(x+1) - 1/4=5?

Answers

The answer to this question is

x=15/8

1/2x+3/2(x+1)-1/4=5

1/2x+3/2(x+1)-1/4=5

(1/2x+3/2x)+3/2-(1/4)=5

4/2x+3/2-(1/4)=5

4/2x+(3/2–1/4)-(3/2–1/4)=5-(3/2–1/4)

4/2x+0=5-(3/2–1/4)

2x=5-(6/4–1/4)

2x=5-(5/4)

2x=3 3/4

2x/2=(3 3/4)/2

x=15/4(1/2)

x=15/8

1/2x+3/2(x+1)-1/4=5 (Expand the polynomial)

(1/2x+3/2x)+3/2-(1/4)=5

4/2x+3/2-(1/4)=5

4/2x+(3/2–1/4)-(3/2–1/4)=5-(3/2–1/4)

4/2x+0=5-(3/2–1/4) (Express the fractions on the right side of the equation in the common denominator 4)

2x=5-(6/4–1/4)

2x=5-(5/4)

2x=3 3/4

2x/2=(3 3/4)/2

x=15/4(1/2)

x=

15/8 or 1 7/8 as a mixed fraction or 1.875 as a decimal numeral

PROOF

If x=15/8, then the inverse of the equation 1/2x+3/2(x+1)-1/4=5 returns

2x+(6/4–1/4)=5

2(15/8)+(6/4–1/4)=5

15/4+(5/4)=5

(15+5)/4=5

20/4=5 and

5=5 proves the root (zero) x=15/8 of the statement 1/2x+3/2(x+1)-1/4=5

C.H.

1/2x+3/2(x+1) --1/4=5

1/2 (1/x+3/ (x+1) =5+1/4

1/x + 3/x+1 =(5+1/4) ×2/1

x+ 1 +3x /x (x+1) = 10+1/2 =21/2

4x+1 = 21/2 [x^2+x]

8x+2= 21x^2+21x

21x^2 +-13 x -2 =0

a =21 b= 13 c= -2

X= [13 + -- (169 -- 4×21× -2)^1/2 ] /2×21

=[13 + - ( 169 + 168 )^1/2] /2×21

Discriminat =169+168=337 >0

PLS HELP!!! ANSWER ASAP PLS!!!!!


Which inequality is true?

0.439 > 0.493 0.563 > 0.536

0.673 < 0.573 0.781< 0.749

Answers

Answer:

0.563>0.536

Step-by-step explanation:

Its greater

Which point below is a solution to the equation y = 2x + 3?
A (145, 291)
B (78, 163)
C (37, 77)

Answers

Answer:

C (37, 77)

Step-by-step explanation:

Option A:

[tex]291=2(145)+3\\\\291=290+3\\\\\boxed{291\neq 293}[/tex]

Option A is not a solution.

Option B:

[tex]163=2(78)+3\\\\163=156+3\\\\\boxed{163\neq 159}[/tex]

Option B is not a solution.

Option C:

[tex]77=2(37)+3\\\\77=74+3\\\\\boxed{77=77}[/tex]

Option C is a solution.

Hope this helps.

Answer:

C

Step-by-step explanation:

To determine which point is a solution, substitute the x- coordinate into the equation and if the value is equal to the y- coordinate then it is a solution

A (145, 291 )

y = 2(145) + 3 = 290 + 3 = 293 ≠ 291 ← not a solution

B (78, 163 )

y = 2(78) + 3 = 156 + 3 = 159 ≠ 163 ← not a solution

C (37, 77 )

y = 2(37) + 3 = 74 + 3 = 77 ← solution to the equation

How many natural numbers greater than 6 but less than 60 are relatively prime to 15?

Answers

Answer:

7,8,11,13,14,16,17,19,22,23,26,28,29,31,32,34....

Step-by-step explanation:

ANY NUMBERS that are NOT divisible by 5 or 3 basically

Hope it helps!

factor completely 24x^2+16x-30

Answers

Answer:

2(2x+3)(6x-5)

Step-by-step explanation:

2(12x²+8x²-15)

2(12x²+18x-10x-15)

2(6x(2x+3)-5(2x+3))

2(2x+3)(6x-5)

What is the area of this parallelogram?

Answers

Answer:

A= 28

Step-by-step explanation:

To find the area of a parallelogram, multiply the base by the height. The formula is: A = B * H where B is the base, H is the height, and * means multiply.

I believe it’s 6 in the equation

what’s the percentage help me please

Answers

It is 68 percent cause 17 x4 is 68

What is the answer ‍♀️

Answers

Answer:

c. 15in

Step-by-step explanation:

Answer:

C. 15 inches

Step-by-step explanation:

The perimeter of a traingle is all of the sides added together. If three sides equal 36, and 2 equal 21, then the remaining side would be 15.  Hope this helps!

Will give crown thanks!

Answers

A: Acute (70<90)

B: Obtuse (140>90)

C: Acute (60<90)

D: Right (90=90)

Acute: x<90

Obtuse: x>90

Right: x=90

Find the percent change from 75 to 24.

Answers

212.5%

The percentage increase from 24 to 75 is 212.5%.

PLZ HELP!!


Tony paid $12 for a carnival ticket. Then he paid $3 per ride. If he spent $36, how many rides did he buy? Solve using an ALGEBRAIC EQUATION

Answers

Answer:

8

Step-by-step explanation:

The expression you need to use would be

3x+12=36.

Subtract 12 from both sides

3x=24

Divide by 3

X=8

Someone please help with this question!

A bakery used 475 pounds of apples to make 1,000 apple tarts. Each tart contains the same amount of apples. How many apples are used in each tart?

Answers

Answer:

There are 0.475 pounds of apples in each tart.

I arrived in this number by dividing the total number of pounds by the total number of tarts made.

475 pounds divided by 1000 tarts is equal to 0.475 pounds per tart.

475 lbs/1000 tarts = 0.475 lbs/tart

So, if you are to bake a certain number of tarts and need to know the total number of pounds of apple needed to bake you can use this equation.

y = 0.475x

where y represents the total number of pounds needed to bake x number of tarts with a fixed 0.475 pounds per tart.

Step-by-step explanation:

A museum recorded that it had 988 visitors in 4 hours .What is the unit rate in visitors per hour?

Answers

Answer:

247

Step-by-step explanation:

988/4 = 247
247 visitors per hour

test corrections....

Answers

your answer is going to be B.

b
-
27 =43

I would really appreciate your help

Answers

Answer:

B = 70

Step-by-step explanation:

Answer:70

Step-by-step explanation:

Olivia uses the work below to determine 55% of 720.

Step 1: 55 percent = 50 percent + 10 percent minus one-half (10 percent)
Step 2: 50% of 720 = 720 divided by 2 = 360
10% of 720 = 720 divided by 10 = 72
One-half (10 percent of 720) = One-half (72) = 31
Step 3: 360 + 72 – 31 = 401

Which explains the error in Olivia’s solution?
Step 1: Olivia used percents that are not equivalent to 55%.
Step 2: Olivia incorrectly determined 50% of 720.
Step 2: Olivia incorrectly determined One-half of 10% of 720.
Step 3: Olivia subtracted One-half of 10% when she should have added.

Answers

Answer:

C. Step 2: Olivia incorrectly determined One-half of 10% of 720.

Step-by-step explanation:

On the unit test on edge, hope this helps UwU

Answer:C. Step 2: Olivia incorrectly determined One-half of 10% of 720.Step-by-step explanation:HoPe ThIS hElPS

According to the synthetic division below, which of the following statements
are true?
Check all that apply.

Answers

The correct statements about given synthetic division are C, D, and F

What is a quadratic polynomial?

"It is a polynomial with degree 2."

What is synthetic division?

"It is defined as a way of dividing one polynomial by another polynomial of first degree."

For given question,

We have been given a quadratic polynomial [tex]F(x)=4x^{2} -17x-15[/tex]

We can factorize above quadratic polynomial as,

[tex]F(x)\\=4x^{2} -17x-15\\=4x^{2} -20x+3x-15\\=4x(x-5)+3(x-5)\\=(x-5)(4x+3)[/tex]

This means the factors of [tex]4x^{2} -17x-15[/tex] are (x - 5) (4x + 3)

And the roots of the polynomial would be,

[tex]\Rightarrow F(x)=0\\\Rightarrow 4x^{2} -17x-15=0\\\Rightarrow (x-5)(4x+3)=0\\\Rightarrow x-5=0~~,~~4x+3=0\\\Rightarrow x=5~~,~~x=-\frac{3}{4}[/tex]

This means, the roots of [tex]4x^{2} -17x-15[/tex] are 5 and [tex]\frac{-3}{4}[/tex]

Therefore, the correct statements about given synthetic division are C, D, and F

Learn more about polynomial here:
https://brainly.com/question/11536910

#SPJ2

Plss do this too question

Answers

13. B
14. B
Hope this helps!!

5<-2t-3 Need steps and the answer

Answers

Answer:

t<−4

Step-by-step explanation:

switch sides

-2t-3>5

then add three to both sides:

-2t-3+3>5+3

simplify:

-2t>8

then multiply both sides -1 (reverse the inequality)

(-2t)(-1) <8 (-1\)

simplify:

2t<-8

Divide both sides by 2:

2t/2 <-8/2

Answer:&&&&&&

SOrry dont know buddy

Step-by-step explanation:

solve the following using factoring x²+12=7×​

Answers

Answer:

(x-4)(x-3)

Step-by-step explanation:

x^2+12=7x  move the 7x to the other side

x^2-7x+12

(x-4)(x-3)

At which rooi does the graph of f(x) = (x - 5)3(x + 2)2 touch the x-axis?
O-5
O-2
O 2
5

Answers

2 for sure ................

please help me with this question

Answers

Answer:

12cm

Step-by-step explanation:

You can draw a triangle with hypotenusa 13, height h and base 5 (the difference between the radius 9 and 4). Then pythagoras tells us that

13² = h² + 5²

so

h = 13² - 5² = √144 = 12

A 2-column table with 5 rows. The first column, number of snapdragons, x, has the entries 11, 12, 13, 14. The second column, number of daisies, y, has the entries 34, 33, 32, 31.

Hans is planting a garden with snapdragons and daisies. The table shows some possible combinations of the two plants. If Hans plants 29 daisies, how many snapdragons will he plant?

Answers

9514 1404 393

Answer:

  16

Step-by-step explanation:

The values in each row of the table have a total of 45. If Hans plants 29 daisies, he likely will plant ...

  45 -29 = 16 . . . snapdragons

__

One can also find the answer by extending the table 2 more rows. Each x entry increases by 1 as each y entry decreases by 1. Then the number of snapdragons listed in the second added row will be 14+2 = 16.

Answer:

x=45-y and 16

Step-by-step explanation:

if dan was 4 years old 18 years ago, how old will he be 16 years from now?

Answers

Answer:

4+18 = 22 thats now in 16  years would be 38 years old

Step-by-step explanation:

Help is a quizz !!!! The question is what mistake did the make in simplifying the expression ? (explain )

Answers

5^4 / 5 = 5^4 * 5^(-1) = 5^(4-1) = 5^3 = 125

please help, i’m so confused ahhh

Answers

Answer: x = 3. the length of side ST is 14.

Step-by-step explanation:

Since both sides are equal, we can use the equation 3x + 5 = 5x - 1.

To start the problem, we subtract 3x from each side which makes our equation 5 = 2x - 1.

The next step would be to simplify the equation by adding 1 to each side which makes our equation 6 = 2x.

We then need to simplify the equation to x = 3.

This means the answer to 9 is x = 3.

For the next problem, since we already know the value of x, we substitute its value which in this case would be 3. This leaves us with an equation of 9 + 5, which equals 14.

This means the length of side ST is 14.

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