Mr. Twain asked the students in his class to draw the figure below using a scale factor
2 in.
3.1 in.
3.9 in.
4.5 in.
Student
Response
5 in.
Mark
Samantha
6 in.
Divia
1.3 in.
Cheng
0.9 in.
Candice
11.7 in.
Select all students that answered Mr. Twain's question correctly.

Answer:

107

Step-by-step explanation:

Fig. 1

area of triangle = 1/2×base×height

=1/2×4×8

=16

area of figure 2

Ar of square= side ²

=8×8

=64

area of fig 3

ar of triangle= 1/2×6×9

=27

Area of fig. 1+2+3

= 16+64+27

= 107. ANSWER

Answer:

25% of 80 is D. 20kg

Step-by-step explanation:

50% of 80 is 40 and we know that 25% is half of 50%, so half of 40 would be 20.

So, the answer is D. 20kg

Hope this helps! :)

Answer:

The answer is B. 0.435,0.436,0.462,0.478

Step-by-step explanation:

:)

Answer:

i think Its 5/8

Step-by-step explanation:

this one is tricky for me at least

Answer:

8

Good luck! Hope this helps!

Answer:

b and d

Step-by-step explanation:

Answer:

she needs 4 and will have 1/3 of a sandwich left

Step-by-step explanation:

Answer:

12 pices remainder 1

Step-by-step explanation:

Because if u split a sandwich in 12 pices u get 1 extra sandwich left over and 12 is good enough for 11 ppl hope I helped

Answer:

9x

4

+120x

3

+550x

2

+1000x+100x2

2

+500x2+625+18x

3

x2+150x

2

x2+350×2+50x2x+60×2

2

+30x

2

x2+150×2+36x

2

x2

2

+18x

3

x2+90x

2

x2+60×2

2

+30x

2

x2+150×2

Step-by-step explanation:

(3x+5)(2x2+x+5)(3x+5)(2x2+x+5)

​

=(6×2+3x

2

+15x+10x2+5x+25)(3x+5)(2x2+x+5)=

=(3x

2

+20x+10x2+25+6×2)(3x+5)(2x2+x+5)=

=(9x

3

+15x

2

+60x

2

+100x+30×2+50x2+75x+125+6×2⋅3x+6×2⋅5)(2x2+x+5)=

=(9x

3

+15x

2

+60x

2

+100x+30×2+50x2+75x+125+18x

2

x2+6×2⋅5)(2x2+x+5)=

=(9x

3

+15x

2

+60x

2

+100x+30×2+50x2+75x+125+18x

2

x2+30×2)(2x2+x+5)=

=(9x

3

+75x

2

+175x+50x2+125+30×2+18x

2

x2+30×2)(2x2+x+5)=

=18x

3

x2+9x

4

+45x

3

+150x

2

x2+75x

3

+375x

2

+350×2+175x

2

+875x+100x2

2

+50x2x+250x2+250x2+125x+625+30×2⋅2x2+30×2x+30×2⋅5+18x

2

x2⋅2x2+18x

2

x2x+18x

2

x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=

=18x

3

x2+9x

4

+45x

3

+150x

2

x2+75x

3

+375x

2

+350×2+175x

2

+875x+100x2

2

+50x2x+250x2+250x2+125x+625+60×2

2

+30×2x+30×2⋅5+18x

2

x2⋅2x2+18x

2

x2x+18x

2

x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=

=18x

3

x2+9x

4

+45x

3

+150x

2

x2+75x

3

+375x

2

+350×2+175x

2

+875x+100x2

2

+50x2x+250x2+250x2+125x+625+60×2

2

+30x

2

x2+30×2⋅5+18x

2

x2⋅2x2+18x

2

x2x+18x

2

x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=

=18x

3

x2+9x

4

+45x

3

+150x

2

x2+75x

3

+375x

2

+350×2+175x

2

+875x+100x2

2

+50x2x+250x2+250x2+125x+625+60×2

2

+30x

2

x2+150×2+18x

2

x2⋅2x2+18x

2

x2x+18x

2

x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=

=18x

3

x2+9x

4

+45x

3

+150x

2

x2+75x

3

+375x

2

+350×2+175x

2

+875x+100x2

2

+50x2x+250x2+250x2+125x+625+60×2

2

+30x

2

x2+150×2+36x

2

x2

2

+18x

2

x2x+18x

2

x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=

=18x

3

x2+9x

4

+45x

3

+150x

2

x2+75x

3

+375x

2

+350×2+175x

2

+875x+100x2

2

+50x2x+250x2+250x2+125x+625+60×2

2

+30x

2

x2+150×2+36x

2

x2

2

+18x

3

x2+18x

2

x2⋅5+30×2⋅2x2+30×2x+30×2⋅5=

=18x

3

x2+9x

4

+45x

3

+150x

2

x2+75x

3

+375x

2

+350×2+175x

2

+875x+100x2

2

+50x2x+250x2+250x2+125x+625+60×2

2

+30x

2

x2+150×2+36x

2

x2

2

+18x

3

x2+90x

2

x2+30×2⋅2x2+30×2x+30×2⋅5=

=18x

3

x2+9x

4

+45x

3

+150x

2

x2+75x

3

+375x

2

+350×2+175x

2

+875x+100x2

2

+50x2x+250x2+250x2+125x+625+60×2

2

+30x

2

x2+150×2+36x

2

x2

2

+18x

3

x2+90x

2

x2+60×2

2

+30×2x+30×2⋅5=

=18x

3

x2+9x

4

+45x

3

+150x

2

x2+75x

3

+375x

2

+350×2+175x

2

+875x+100x2

2

+50x2x+250x2+250x2+125x+625+60×2

2

+30x

2

x2+150×2+36x

2

x2

2

+18x

3

x2+90x

2

x2+60×2

2

+30x

2

x2+30×2⋅5=

=18x

3

x2+9x

4

+45x

3

+150x

2

x2+75x

3

+375x

2

+350×2+175x

2

+875x+100x2

2

+50x2x+250x2+250x2+125x+625+60×2

2

+30x

2

x2+150×2+36x

2

x2

2

+18x

3

x2+90x

2

x2+60×2

2

+30x

2

x2+150×2=

=9x

4

+120x

3

+550x

2

+1000x+100x2

2

+500x2+625+18x

3

x2+150x

2

x2+350×2+50x2x+60×2

2

+30x

2

x2+150×2+36x

2

x2

2

+18x

3

x2+90x

2

x2+60×2

2

+30x

2

x2+150×2

​

Answer:

3x-6

Step-by-step explanation:

3(x-2)

3 multiply both x and -2

3x-6

hope it's helpful ❤❤❤❤

THANK YOU.

Answer:

40.15$

Step-by-step explanation:

subtract 20 from 60, you get 40. then add the 0.15 back. bam! 40.15$. hope this helped!! ^___^

Answer:

a. 12:10 pm

b. 40 mph

Step-by-step explanation:

Assuming you meant to type 1 ¹/₄ hours later.

a. First convert that to a improper fraction and then a decimal:

= 5/4

= 1.25 hours

1.25 hours in minutes is:

= 1.25 * 60

= 75 minutes

= 1 hour 15 minutes

The motorist left at 10:55.

= 1055 + 1 hour

= 11:55

Add 15 minutes:

= 12:10 pm

b. Speed = Distance / Time

= 50 / 1.25 hours

= 40 miles per hour

Answer:

A)473 = 335 - 46x

B) 3

Step-by-step explanation:

A)

473 = 335 - 46x

x = the hours of labor needed.

B)

Solve for x

473 = 335 - 46x

subtract 335 from both sides

138 = 46x

divide both sides by 46

3 = x

Answer:

A) [tex]46x+335=473[/tex]  B)[tex]x=3[/tex]

Step-by-step explanation:

473 is the total amount, which means it is the end result

335 represents a constant since it is a base price

the hourly rate is a variable, due to the fact that it depends on how many hours he spent working.

variable + constant = total price

[tex]46x+335=473[/tex]

Now to solve this, first subtract [tex]335[/tex] from both sides

[tex]46x=138[/tex]

Next divide both sides by [tex]46[/tex] to isolate the variable

[tex]x= \frac{138}{46}[/tex]

This can be simplified to: [tex]x=3[/tex]

plz mark me brainliest. ;)

Answer:

39.25 square ft

Step-by-step explanation:

[tex]Area \: of \: sector = \frac{45 \degree}{360 \degree} \times \pi {r}^{2} \\ \\ = \frac{1}{8} \times 3.14 \times {10}^{2} \\ \\ = \frac{3.14 \times 100}{8} \\ \\ = \frac{314}{8} \\ \\ = 39.25 \: {ft}^{2} [/tex]

Answer:

Your answer is 37

Step-by-step explanation:

Caanan is 62 miles away and since he drives at 50 miles per hour, and if it is 2:30 then 30 minutes is half a hour, which means you divide 50 in half by 2 and get 25. After you do that then you subtract 62 and 25 to get your answer 37. Have a good day!!! :)

Answer:

let required no be x

[tex] \frac{1}{7} = \frac{x}{42} [/tex]

by doing crisscrossed multiplication

[tex]42 \times 1 = 7 \times x[/tex]

42=7x

dividing both side by 7

[tex] \frac{42}{7} = 7x \div 7[/tex]

6=x

therefore x=6

therefore value of remaining no.is 6

Step-by-step explanation:

solution

here,

let, the required number be x

1/7=x/42

or, 42= 7x

or, x= 42/ 7

therefore, x= 6

hope this helps u...

Answer: x= 10, y= 13. i dont know for sure so i'd wait for someone else to answer

Answer:

x = 12

y = 13

Step-by-step explanation:

by pythagoras theorem

x²=20²-16²

x²=400-256

x²=144

x=12

y²=x²+5²

y²=12²+5²

y²=144+25

y²=169

y=13

Answer:

n = 1.92

Step-by-step explanation:

Multiply both sides of the equation by 3.2

[tex]3.2*\frac{2}{3.2} =3.2*\frac{9.6}{16}[/tex]

Simplify both sides of the equation.

n = 1.92

good luck, i hope this helps :)

Answer:

Its A

Step-by-step explanation:

7x + 3 =17

            -3  ( 17 -3 = 14)

7x =  14.  (14 divided by 7)

u get x=2

Answer:

D. 6 cm

Step-by-step explanation:

3/4.5=4/QR

Cross multiply

18/3=6

Answer: It's given in the equations.

Step-by-step explanation:

First One

f(x) = -2^x

Second

f(x) = -4(2)^x

Third

f(x) = 4(2)^x

Fourth

f(x) = 2^x

Answer:

5. b  6. c  7. d  8. a

Step-by-step explanation:

Answer:

b- x=5

Step-by-step explanation:

14-5=8 so your answer would be b

Answer:

12 2/3 KMPH

Step-by-step explanation:

3 1/6 x 4 (reciprical of 1/4) = 12 2/3

Answer:

Step-by-step explanation:

81 = 9 * 9 = 3 * 3 * 3 *3

8 = 2 * 2 * 2 *2

[tex]\sqrt{81 * 8 } = \sqrt{3*3*3*3*2*2*2}\\\\=3 * 3 * 2 \sqrt{2}\\\\= 18\sqrt{2}[/tex]