you can get brainliest but i need it asap

Answer:

1 2/3 hours Levon studied.

Step-by-step explanation:

2/3 as long = multiply by 2 1/2 of the time.

2.5 x 2/3 = 1.66666667

Simplify:

1.66666667 = 1 2/3

Answer:

Corine= 2 1/2 hours

Levon= 1 2/3 hours

Answers:

=======================================================

Explanation:

a1 = first term

a2 = second term

a3 = third term

and so on, until we reach a37 to represent the 37th term

We don't know the first term, but we'll call it x for now. We'll also let d be the difference between each adjacent term, aka the common difference.

Meaning that,

and so on, until,

---------------------

Add up the first three terms (a1 through a3) and set the sum equal to 12

Then do a bit of algebra to get

a1+a2+a3 = 12

(x)+(x+d)+(x+2d) = 12

3x+3d = 12

3(x+d) = 12

x+d = 12/3

x+d = 4

x = 4-d

Do the same for the last three terms, but the sum here is 318

a35+a36+a37 = 318

(x+34d)+(x+35d)+(x+36d) = 318

3x+105d = 318

3(x) + 105d = 318

3(4-d)+105d = 318 .... replace x with 4-d; isolate d

12-3d+105d = 318

102d+12 = 318

102d = 318-12

102d = 306

d = 306/102

d = 3

The common difference is 3. It means each term is increasing by 3.

Use this value of d to find x

x = 4-d

x = 4-3

x = 1

The first term is 1. That makes the second term x+d = 1+3 = 4, then the third term is x+2d = 1+2*3 = 7, and so on.

The sum of the first three terms is 1+4+7 = 12. That helps partly confirm the answer.

Also we have,

Or you could note that the 35th term is 103, and then you increase by 3 each time to get the remaining two terms.

The last part of the confirmation is adding up those three last terms: 103+106+109 = 318, so the answer is fully verified at this point.

Side note: An arithmetic sequence never ends. There technically is no "last term"; however, since we're confined to focusing on these specific 37 terms, we can get away with using the phrasing.

Answer:

x = 1

Step-by-step explanation:

4x + 8 = 12x

4 (1) + 8 = 12 (1)

4 + 8 = 12

12 = 12

your answer is x = 1

Answer:

4x+8=12x

8=8x subtract 4 on both sides

1=x divide by 8 on both sides

hopes this helps

have a good day :)

Step-by-step explanation:

Answer:

Step-by-step explanation:

it increased by two inches from noon to 1pm and increased another two inches from 3pm - 4pm

Answer:

The last one

Step-by-step explanation:

Answer: 25%

Step-by-step explanation:

Given

Total students on a field trip are 68

Out of 68, only brings the camera

The percentage of students that bring the camera is given by

[tex]\Rightarrow \dfrac{17}{68}\times 100\\\\\Rightarrow \dfrac{1}{4}\times 100=25\%[/tex]

Thus, only 25% of students bring a camera.

Answer:

11

Step-by-step explanation:

20 divided by 1.75= 11.42

The equation of the line that is perpendicular to y = 2x + 4 and passes through the point (4, 6) is y = (-1/2)x + 8.

The given equation is y = 2x + 4, which is in slope-intercept form,

y = mx + b, where m is the slope of the line.

The slope of this line is 2.

A line that is perpendicular to this line will have a slope that is the negative reciprocal of 2, which is -1/2.

Using the point-slope form of the equation of a line,

which is y - y(1) = m(x - x(1)), where (x(1), y(1)) is a point on the line, we can find the equation of the line that passes through the point (4, 6) and has a slope of -1/2:

So,

y - 6 = (-1/2)(x - 4)

y - 6 = (-1/2)x + 2

y = (-1/2)x + 8

Therefore,

The equation of the line that is perpendicular to y = 2x + 4 and passes through the point (4, 6) is y = (-1/2)x + 8.

Learn more about equation of a line here:

https://brainly.com/question/23087740

#SPJ7

Answer:

A and B are functions

Step-by-step explanation:

for A, none of the x's repeat which makes it a FUNCTION

for B, when it starts with x^2, it will always be a FUNCTION (its a quadratic)

for C, 10 repeats for the x so it is NOT A FUNCTION

Answer:

A straight line is 180° , so if you subtract 60 from 180 you get 120, and you divide 120 by 6 so the answer is 20

Answer:

x= 20

Step-by-step explanation:

Both angles form a linear pair = 180 o

6x+60 = 180

6x = 120

x = 20

6x20 +60 = 180

120 +60 = 180

what are the optionsss??

Answer:

5

Step-by-step explanation:

Answer:

x = 3 [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

there's no x in the equation you wrote.

Did you mean?

2x + 8 = 15

Subtract 8 from both sides

2x = 7

Divide both sides by 2

x = 7/2

x = 3 [tex]\frac{1}{2}[/tex]

Answer:

15 and -2

Step-by-step explanation:

Answer:

24:16

Step-by-step explanation:

Answer:

C) x=y

hope it helps.

Answer:

12 cm^3

Step-by-step explanation:

12 x 1 x 1 =12

Answer:

1) 5

2) -6

3) -4x^2/y^3

Step-by-step explanation:

hope this helps u :D

Answer:

The circle's area is 380.13 square miles.

Step-by-step explanation:

A = pie * r^2 = pie * 11^2 = 380.13

I hope this somewhat helped you find your answer.

Answer:

379.94

Step-by-step explanation:

3.14 x (11x11) = 379.94

Answer:

no idea- I would say the answer is 4 but i don't know if the triangles are similar or not

Step-by-step explanation:

Answer:

Step-by-step explanation:

What Math skill is that ?

i might be able to help you

____________________________________________________________

Answer:

option 1.

circle

Step-by-step explanation:

A section is formed when a solid shape is sliced into two. A conic section is therefore formed when a cone, is sliced into two.

What determines the shape of the section now, is the angle at which the cone was sliced.

Normally, the base of a cone is a circle.  If we slice a cone using a straight line, which runs parallel to its base, we will still get another perfect cone, but with a smaller height.

If we look at the flat portion of the cone after it has been sliced, we will see that the cross-section is a circle.

Answer:

The answer is 78.5×10^3

[tex]\sf\purple{Radius\:of\:the\:circle}[/tex] = 7 cm.

[tex]\sf\red{The\:circumference\:of\:the\:circle.}[/tex]

[tex]\sf\blue{The\:circumference\:of\:the\:circle\:is\:43.96\:cm.✅}[/tex]

Step-by-step explanation:-

Let "r" be the radius of the circle.

We know that,

[tex]\sf\purple{Circumference\:of\:a\:circle}[/tex] =

[tex]2 \: \pi \: r \\ = 2 \times 3.14 \times 7 \: cm \\ = 43.96 \: cm[/tex]

[tex]{\boxed{\mathcal{\red{Hence,\:the\:circumference\:of\:the\:circle\:is\:43.96\:cm.}}}}[/tex]

[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]

Answer:

2g

Step-by-step explanation:

g+g is like 1+1. You add them together to get 2. Instead of 2, it is g so the answer is 2g.