Mathematics High School

3. *
2 points
Jessica bought seven boxes. A week later
half of all her boxes were lost during a
move. There are now only 13 boxes left.
With how many did she start?

Answers

Answer 1

Answer:

19 boxes

Step-by-step explanation:

Related Questions

Which electric circuit arrangement will light the bulb?

Answers

Answer: Both the metal casing and tip of the bulb are connected to the circuit, forming a closed circuit. Thus, electricity is able to flow through the wires in the circuit to the filament, allowing the bulb to light up.

7. If f(x) = 3x + 5, find f(2). *​

Answers

Answer:

f(2)=3×2+5

=11

Step-by-step explanation:

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Answer:

fx2=1

Step-by-step explanation:

i hope this helps if not im sorry i tried

what is the slope of this equation, v=3x+60

Answers

The slope is 3.

In y=mx+b, the number before x (or m) is the slope.

Answer:

slope=3

Step-by-step explanation:

Find Cos b in the triangle

Answers

Answer:

3/5

Step-by-step explanation:

SOHCAHTOA

Cos- adjacent/hypotenuse

adjacent side: 3

hypotenuse: 5

adj/hyp: 3/5

A ladder is leaned up against a wall. The bottom of the
ladder is 5 feet from the wall. The top of the ladder
reaches a spot on the wall that is 12 feet off the ground.
How long is the ladder? (HINT: draw a rough sketch!)
7 feet
13 feet
17 feet
20 feet
i

Answers

Answer:

Step-by-step explanation:

so 5 feet as a width and 12 as a height meaning that it would be b 13

what's the opposite of -4

Answers

Answer:

4

Step-by-step explanation:

It's a opposite of -4 so the opposite would be 4

Answer:

4

Step-by-step explanation:

The opposite of -4 is 4

In addition

The absolute value of -4 is also 4

Therefore, the answer is 4.

a video is 20 min long. devin made the video faster 2 times. how many minutes and what fraction is the answer?

Answers

Answer:

10 minutes. 1/2

Step-by-step explanation:

Answer:

10/20???

Step-by-step explanation:

graph the equation y= -3x+4

Answers

Answer:

Here's what it would look like:

15 POINTSSS AND BRAINLIEST
Create two equivalent ratios to 4:7.5, one with the first term more than 50 and one with the first term less than 1.

Answers

1.) 52:97.5
2.) 1:1.875

Hope this helps!

need help with this please

Answers

Answer:

13.6

Step-by-step explanation:

Remember SOH CAH TOA

We're going to use tangent = opposite / adjacent because the 11 is opposite theta (39 degrees) and x is adjacent to it.

tan (39) = 11 / x

x = 11 / tan(39)

x = 13.584 -> 13.6 (rounded to nearest tenth)

Note: Make sure your calculator is in degree mode.

Solve: -7 – 6 = k.
GIVING BRAINLIST!!!

Answers

Answer:

k=-13

Step-by-step explanation:

Yes it’s 13 something something

What is 4/5 as a decimal?

Answers

Answer:

Umm, 0.8

Step-by-step explanation:

Is this fr?

0.8. Because it just is idek

A family is preparing backpacks filled with school supplies to donate to children in need. They have 14 pencils and 8 notebooks. If they want to make all the backpacks the same, with no school supplies left over, what is the greatest number of backpacks they can fill?
I need the help ASAP please

Answers

Answer:

2

Step-by-step explanation:

2 is the only common factor between 8 and 14

Solve the following system of equations by graphing each line.
x+y=4
3x+4y=10
*mark the solution with a point

Answers

Answer:

y = -2

x = 6

Step-by-step explanation:

hope it help

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Simplify the equation.

4x+8.2*34/9

* is times
/ is divided by

Please explain how you got the answer.

Answers

Answer:

4x+30.97777... (7 repeating)

Step-by-step explanation:

Look at image

that’s the correct answer ^

Does anyone know how to do simple interest for 7th grade math? I need a tutorial or an example please, thanks. A question example is $750, 7%, 3 years.

Answers

Answer:

750/100 X 7 = 52.50

52.50 X 3 = $157.50

Step-by-step explanation:

divide principal amount by 100 then multiply by interest percentage. this gave 52.50

now multiply the interest amount by number of years

in this case 3

52.50 X 3 = $157.50

A person going to a party was asked to bring 5 different bags of chips. Going to the store, she finds 11 varieties.

How many different selections can she make?

Answers

Answer:

as an instinct i thought that i should multiply 11 and 5, so im saying 55 different selections

Step-by-step explanation:

sorry if im wrong

Cameron purchased an electric guitar for $1,875. The value of the guitar depreciates by 20% each year. In how many years will the guitar be valued at $768?

Answers

Answer:

4 years

Step-by-step explanation:

Hope this helps

Answer:

4 years

Step-by-step explanation:

do 1,875 divided by 768

please help! show all steps ​

Answers

Answer:

Tn = 8n - 2

Step-by-step explanation:

Given the arithmetic sequence

6, 14, 22, 30, 38

The nth term is expressed as;

Tn = a +(n-1)d

a is the first term = 6

d is the common difference = 14 - 6 = 22 - 14 = 8

Substitute into the formula;

Tn = 6 + (n-1)(8)

Tn = 6 + 8n-8

Tn = 8n - 2

Hence the nth term of the sequence is 8n-2

Monday Bellwork Which solution would make this equation have infinitely many solutions? 6(x – 3) + x = 7x +

-18, -9, 18, or 9​

Answers

Answer:-18

Step-by-step explanation:

6(x−3)+x=7x−18

Step 1: Simplify both sides of the equation.

6(x−3)+x=7x−18

(6)(x)+(6)(−3)+x=7x+−18(Distribute)

6x+−18+x=7x+−18

(6x+x)+(−18)=7x−18(Combine Like Terms)

7x+−18=7x−18

7x−18=7x−18

Step 2: Subtract 7x from both sides.

7x−18−7x=7x−18−7x

−18=−18

Step 3: Add 18 to both sides.

−18+18=−18+18

0=0

PLS MY ASSIGNMENT IS LATE I NEED IT NOOOOOW!

Answers

Step-by-step explanation:

how do I define the theorem on this question?

Answers

Answer:

AAS

Step-by-step explanation:

have a good day:) .....

at the pediatricians office, patients are able to select a toy from the toy bin. The toy bin has 12 puzzles, 16 boxes of crayons, and 2 bouncy balls. What is the probability of selecting anything but a bouncy ball

Answers

Answer:

9%

Step-by-step explanation:

‽?????????????????????????

simplify each expression 6X + 2x​

Answers

8x
Hope that helps
......

Reasoning A cylindrical water tank holds 26 litres when full. The water tank is 36 cm tall.
Work out the radius of the tank to 2 d.p.
(4 marks)

Answers

Answer:

r = 15.16 cm

Step-by-step explanation:

Mathematically, we need a consistent unit

26 liters = 26,000 cm^3 as 1000 cm^3 = 1 L

The volume of a cylinder is;

V = pi * r^2 * h

26,000 = 3.142 * r^2 * 36

r^2 = 26,000/(3.142 * 36)

r^2 = 229.86

r = √229.86

r = 15.16 cm

8x(x+1)=(4x-3)(2x+1)

Answers

Answer:

(3x+1)(2x+1)

Step-by-step explanation:

Answer:

[tex]x2[/tex]=[tex]\frac{5-\sqrt{113} }{8} , x2 = \frac{5+\sqrt{113} }{8}[/tex]

Step-by-step explanation:

hope this help and if you can give me brainliest

solve for c
c/6=12


A.2
B.6
C.18
D.72

Answers

Its A becuase 12/6=2

Classify triangle ABC by its sides. Then determine whether it is a right triangle.
A (3, 3), B(6, 9), C (6,-3)
I

Answers

Answer:

right triangle it is because if u make a graph and put the points u would get a right isosclses triangle

Step-by-step explanation:

The triangle ABC with verticies A(3, 3), B(6, 9) and C(6, -3) is an isosceles triangle.

What is the way of classifying a triangle?

If a² + b² < c² then it is an acute angle triangle.

If a² + b² = c² then it is a right-angle triangle.

If a² + b² ≥ c² then it is an obtuse angle triangle.

Given, A ΔABC with verticies A(3, 3), B(6, 9) and C(6, -3).

We know the distance formula [tex]D = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2[/tex].

From this we find AB = √45 units, BC = 12 units and AC = √45 units.

Now, this is an isosceles triangle with two equal sides of √45 units.

learn more about the isosceles triangle here :

https://brainly.com/question/2456591

#SPJ2

IF YOU WANT BRAINLIEST I NEED A LITTLE FAVOR :)

Answers

Answer:

180-(67+52)

Step-by-step explanation:

angles on a straight line add up to 180 degress

X=180-(67+52) X equals 61

1 Suppose the vertices of the original figure in the example
were A(-6,6), B(-2,5), and C(-6,2). What would be the
vertices of the image after a 90° clockwise rotation about
the origin?
A'(_)
B'( ____
C'(___)

Answers

Answer:

A' = (6, 6)

B' = (5, 2)

C' = (2, 6)

Step-by-step explanation:

The rule is [tex](x, y) --> (y, -x)[/tex]

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