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

PLS MY ASSIGNMENT IS LATE I NEED IT NOOOOOW!

Answers

Step-by-step explanation:

simplify each expression 6X + 2x​

Answers

8x
Hope that helps
......

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

Answers

Answer:

k=-13

Step-by-step explanation:

Yes it’s 13 something something

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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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

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

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

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

graph the equation y= -3x+4

Answers

Answer:

Here's what it would look like:

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.

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

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

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:

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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]

solve for c
c/6=12


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

Answers

Its A becuase 12/6=2

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:

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

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

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

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!

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

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

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

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:

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.

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

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.

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

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