When building a math test, the teacher creates two difficult problems for every five easy problems. If the teacher is creating a test with 56 questions on it, how many questions will be difficult?

Answer:

Like terms means that the numbers have the same variable after them or they don't have a variable at all.  It is also important to remember that any letter that doesn't have a number in front of it technically has a 1 in front of it.

For example, x + 3x = 1x +3x.  Then I add the numbers in the front and I get 4x.

If it had been 4x + 7x + 3, my answer would have been 11x +3.  That's because there were a total of 11 x, but the 3 ones weren't x's so I just leave them alone.

Step-by-step explanation:

Answer:

[tex]8x[/tex]

Step-by-step explanation:

[tex]x+7x[/tex]

[tex]8x[/tex]

The answer is [tex]8x[/tex] when you simplify because you are adding another [tex]x[/tex] to [tex]7x[/tex] so it becomes [tex]8x[/tex]

Hope this is helpful

Theoretical:

30%

Experimental:

42.5%

a)M=×50

b)30=1500

Step-by-step explanation:

30×50

=1500

Answer:

0.4

Step-by-step explanation:

Here we see the arithmetic sequence 0, 0.1, 0.2, 0.3, 0.4, 0.5, and so on.

The value of p is 0.4.

Answer:

0.8

Step-by-step explanation:

= 1 - 0.2

= 0.8

that's the answer above

Answer:

0.8

Step-by-step explanation:

Answer:

Volume = 66

Surface are = 144

Step-by-step explanation:

1. Volume

The formula to find the volume of a triangular prism is the following,

[tex]A=\frac{l*w*h}{2}[/tex]

The following information is given,

lenght = 4

width = 11

hieght = 3

Substitute these numbers into the formula and solve for the heihgt,

[tex]A=\frac{l*w*h}{2}\\\\A=\frac{4*11*3}{2}\\\\A=66[/tex]

2.Surface area

The surface area of a figure is the two-dimensional distance around the figure. It can be found by finding the area of each face of the figure and then adding the result up.

The formula to find the area of a rectangle is the following,

[tex]A_r=(lenght)(width)[/tex]

The formula to find the area of a triangle is the following,

[tex]A_t=\frac{(legnth)(width)}{2}[/tex]

Substitute in the give values and add up the results to find the total surface area of the rectangle,

[tex]((5)(11))+((4)(11))+((3)(11))+(\frac{(3)(4)}{2})+(\frac{(3)(4)}{2})\\\\=55 + 44 + 33+ 6 + 6\\\\= 144[/tex]

Answer:

16b^4-9

Step-by-step explanation:

Factoring gives us 16b^4+12b^2-12^2-9. Simplifying gives us the answer which is 16b^4-9

Answer:

[tex]16b^4-9[/tex]

Step-by-step explanation:

When multiplying binomials, we can use a method called FOIL (First-Outside-Inside-Last).

For [tex](t_1+t_2)(t_3+t_4)[/tex], let:

[tex]t_1\implies \text{First Term},\\t_2\implies \text{Second Term},\\t_3\implies \text{Third Term},\\t_4\implies \text{Fourth Term}[/tex]

In the FOIL method, the steps go:

[tex]\text{\textbf{F}irst: Multiply the first and third terms (first term of each binomial)},\\\text{\textbf{O}utside: Multiply the first and fourth terms},\\\text{\textbf{I}nside: Multiply the second and third terms},\\\text{\textbf{L}ast: Multiply the second and fourth terms (last term of each binomial) }[/tex]

Given [tex](4b^2+3)(4b^2-3)[/tex], we have:

[tex]\text{First: }4b^2\cdot 4b^2,\\\text{Outside: }4b^2\cdot -3,\\\text{Inside: }3\cdot 4b^2,\\\text{Last: }3\cdot -3,\\\rightarrow 16b^4-12b^2+12b^2-9[/tex]

Combine like terms:

[tex]\boxed{16b^4-9}[/tex]

Answer:

1 - D

2 - B

3 - C

4 - A

I hope this helped!

Answer:

Step-by-step explanation:

a = a (true)

2 = 2 (true)

Answer:

put it all together and write normally

Step-by-step explanation:

Answer:

Step-by-step explanation:

the first is 1/2

second is 1/52

third is 1/4

forth is 1/8

i think thats right any way :)

Answer:

blabity-booo

Step-by-step explanation:

i love  you ;)

Answer:

B

Step-by-step explanation:

Answer:

2y+5

Step-by-step explanation:

Lets start with an expression for how many yards Gary threw. Since y is the variable given in the problem, we'll use that.

Yards Gary threw = y

We also know that Pat threw 5 more than twice the yards Gary did. First, we multiply Gary's yards by 2, then add 5 more. We end up with the expression:

Yards Pat threw = 2y+5

It is 4 dude this simple math it is basicly subtraction anyway pls give me brainlest

Answer:

Step-by-step explanation:

8 TEACHERS

4 MALES 4 FEMALES

4 ARE GONE SO 2 MALES LEFT 2 FEMALES LEFT =4 TEACHERS

Answer:

6 2/3 = x

Step-by-step explanation:

24 1/14 + 8 3/7  = (x ÷ 1 1/9) * 5 5/12

Add on the left by getting a common denominator

24 1/14 + 8 3/7*2/2  = (x ÷ 1 1/9) * 5 5/12

24 1/14 + 8 6/14  = (x ÷ 1 1/9) * 5 5/12

32 7/14  = (x ÷ 1 1/9) * 5 5/12

32 1/2 =  (x ÷ 1 1/9) * 5 5/12

Changing to improper fractions

(2*32+1)/2 = (x ÷ 10/9) * (12*5+12)/12

65/2 = (x ÷ 10/9) * (65)/12

Multiply each side by 12/65

65/2 * 12/65 = (x ÷ 10/9) * (65)/12*12/65

6 = (x ÷ 10/9)

Copy dot flip

6 = x * 9/10

Multiply by 10 /9

6 * 10/9 = x * 9/10 * 10/9

60/9 =x

20/3 =x

Changing back to a mixed number

3 goes into 20 6 times with 2 left over

6 2/3 = x

Answer:

[tex]\frac{20}{3}[/tex]

Step-by-step explanation:

[tex](24+8)+(\frac{1}{14} +\frac{3}{7})=(x:\frac{10}{9}).\frac{65}{12}\\32+\frac{1}{2}=(x.\frac{9}{10}) .\frac{65}{12} \\32\frac{1}{2}=(\frac{9}{10}x).\frac{65}{12} \\\frac{65}{2}=\frac{9}{10}x.\frac{65}{12} \\\frac{65}{2}=\frac{3}{2} x.\frac{13}{4} \\\frac{65}{2} =\frac{39}{8} \\\frac{20}{3} =x\\x=\frac{20}{3}[/tex]

el   . es multiplicación

Answer:

11/100

Step-by-step explanation:

11% =0,11

=11/100

[tex] \frac{11}{100} [/tex]

Answer:

1° you transform in 11/100, then you divide to get 0,11, then multiply to get 11 and this is the way you transform fraction in percentage

Step-by-step explanation:

Answer:

None. She gave half to one person then the other half to another person.

Step-by-step explanation:

Hope this is correct, if not feel free to let me know. I'm sorry in advance if this is wrong.

Answer:

14

Step-by-step explanation:

23

Answer:

The 16 pairs of parallel lines is easy first what you do is snort taco meat, then get the hot sauce in your nose too.

Answer:

7. 1/10 or 10%

9.5/10

11.5/10

13.9/10

Step-by-step explanation:

Answer:

It is the third option.

Step-by-step explanation:

Since when making an angle of 90º an equivalence is formed between the three points and when joining them the order of the figures is given.

Answer:

The answer is t/3=20

The right diagram is the one that has the orange boxes with 20s and has a t on top

i believe these are the answers:

1. b

2. a

Answer:

Mark me brainiiest

Step-by-step explanation:

Its 1. B and 2. A