Step-by-step explanation:
a. 11 + x + y = 11 + x + y. True
b. 7 - 2x + 3y = 7 - 2x + 3y. True
c. 2x + 8 = 2x + 4. False
d. -5x - 45 = -5x - 45. True
Evaluate 9 - 8/s
when S = 4
Answer:
9-2 is7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
1.) Let's substitute 4 for [tex]S[/tex].
[tex]9 - \frac{8}{S}[/tex]
[tex]= 9 - \frac{8}{4}[/tex]
[tex]= 9 - 2[/tex]
[tex]= 7[/tex]
sobre un estante se pueden colocar 30 libros de ciencias y 6 lubros de letras o 18 libros de letras y 10 libros de ciencias ¿cuantos libros de letras unicamente se pueden colocar?
Usando un sistema de ecuaciones vamos a ver que entran 24 libros de letras en el estante.
Cuantos libros de letras se pueden colocar?
Vamos a usar las variables:
x = peso de un libro de ciencias.y = peso de un libro de letras.Por el texto, podemos saber que el peso maximo que tolera el estante esta dado por el sistema de ecuaciones.
30*x + 6*y = P
10*x + 18*y = P
Podemos igualar esas dos ecuaciones para obtener:
30x + 6y = 10x + 18y
30x - 10x = 18y - 6y
20x = 12y
x = (12/20)*y
Ahora, podemos reemplazar esto en una de las dos ecuaciones, por ejemplo la primera:
30x + 6y = P
30*(12/20)y + 6y = P
(3/2)*12*y + 6y = P
18y + 6y = P
24y = P
Así concluimos que entran 24 libros de letras en el estante.
Sí quieres aprender más sobre sistemas de ecuaciones, puedes leer:
https://brainly.com/question/20868687
An angle measures 64.8° less than the measure of its complementary angle. What is the measure of each angle?
Answer:
77.4 degrees and 12.6 degrees
Step-by-step explanation:
Let the angles be x and x - 64.8.
Therefore, on the basis of knowledge that complementary angles add up to 90 degrees :
x + x - 64.8 = 90
2x = 154.8
x = 77.4 degrees
x - 64.8 = 77.4 - 64.8 = 12.6 degrees
find 5 consecutive odd integers if the sum of the first three integers is 7 more than
PPPPPPPPPPPPLLLLLLLSSSSSSS HELPPPP
Answer:
15,17,19,21,23
Step-by-step explanation:
Enjoy You All!
what set does 13.444 belong to
Answer:
13.4445 I think.
Step-by-step explanation:
Factor completely 3x − 15. (1 point) 3(x − 5) 3(x + 5) 3x(−15) Prime
Answer:
[tex]3(x - 5)[/tex]
Step-by-step explanation:
[tex]3(x - 5) =( 3)(x) + (3)( - 5) = 3x - 15 \\ \\ 3(x + 5) = (3)(x) + (3)(5) = 3x + 15 \\ \\ 3x( - 15) = (3x)( - 15) = - 45x[/tex]
The original price of a sound system is $1250. For one day only, the store is offering a frequent shopper discount of 35% on all merchandise. Which expressions can be used to find the discounted price of the sound system? Check all that apply.
0.35($1250)
$1250 + 0.35($1250)
0.65($1250)
$1250 – 0.35($1250)
Answer:
C.)0.65($1250)
D.)$1250 – 0.35($1250)
Step-by-step explanation:
O.P (Original Price) $1250
Dc (Discount) 35% - *ALL MERCHANDISE*
Question:
Which expressions can be used to find the discounted price of the sound system?
Second Answer:
C & D are the two options that fit the
O.P (Original Price)
&
Dc (Discount)
Answer:
C and D
Step-by-step explanation:
I need help with this
whats the mean????????
Answer:
the mean is 5
Step-by-step explanation:
4x^2y multiplied by (-6xy^2)
Answer:
4x²y* (-6xy²)= -24x³y³
1 3/8, 1 3/4, 2 1/8,__,2 7/8 Find the missing Fraction
ASAP PLEASEEE
Answer:
2 1/2
Step-by-step explanation:
An arithmetic sequence is found when you subtract consecutive terms. The difference is always 3/8 between the terms.
Give an explanation for them
1. What is scientific notation?
2. What does it mean to have no solution or many solutions to a problem when solving for x?
3. What is another way of writing: 2 x 2 x 2 x 2 (hint: use exponential form)
Answer:Scientific notation is a way of expressing real numbers that are too large or too small to be conveniently written in decimal form
Step-by-step explanation:
Please Help! Malik agreed to practice basketball drills with a new player, Tyler, during practice. Malik's best friend, Samuel, doesn't like Tyler and asked Malik to practice with him instead.
What can Malik do to show integrity?
If you were to solve this inequality,
do you need to flip the Inequality symbol?
Answer: no
I would not flip the inequality symbol
Answer:
I think fractions are smaller than whole numbers
So I think No (viewpoint)
A student scored in the 85th percentile on her chemistry exam. What does this student's score mean in relation to those of the other test takers? (4 points) Group of answer choices Her score was better than those of 85% of all test takers. Her score was worse than those of 85% of all test takers. Her score on the exam was 85%. Her score was in the top 85% of all test takers' scores.
Answer:
The answer is
her score was in the top 85% of all test takers' scores.
Step-by-step explanation:
Percentile is the relative standing in a set of data from the lowest values to highest values.
If your score is in the 85th percentile, it means that 85% of the scores are below your score and 15% are above your score.
Answer:
A. Her score was better than those of 85% of all test takers.
Step-by-step explanation:
This means that 85% of the students scored lower on the test, so approximately 15% scored higher.
what is the best reasoning for line 3
Answer:
E
Step-by-step explanation:
"S" stands for "side" and "A" stands for "angle"
SAS = side angle side
The order is important because the angles must be between the two congruent sides.
One pair of congruent sides is AC = CE as shown by the single tickmarks.
The other pair of congruent sides is BC = CD shown by the double tickmarks
The congruent angles are the vertical angles BCA and DCE. Vertical angles are always congruent. Note how these angles are sandwiched between the tickmarked sides.
What is the decimal equivalent to -3 3/12
[tex]______________________________________________[/tex]
What is the decimal equivalent to -3 3/12
[tex]\huge\rm{ANSWER:}[/tex]
[tex]\huge \rm{ - 3.25}[/tex][tex]\huge\rm{SOLUTION:}[/tex]
To begin, keep in mind that - 3 3/12 is a mixed number, also known as a mixed fraction. It has a valid fraction as well as a complete number.
The following is a list of the numbers in a mixed fraction:
[tex]\huge \rm{ - 3}[/tex] the whole number.
[tex]\huge \rm{ 3}[/tex] the numerator
[tex]\huge \rm{ 12}[/tex] the denominator
Follow these procedures to convert -3 3/12 from a mixed number to a decimal number:
Divide the denominator by the numerator to convert the correct fraction to decimal.
3 ÷ 12 = 0.25
To get the entire number of the mixed fraction, multiply it by this decimal number.
-3 + 0.25 = - 3.25
Therefore, the decimal equivalent to -3 3/12 is -3.25
[tex]______________________________________________[/tex]
what is 34.982 + 45.8 + 3.4298=
Answer:
84.2118
Step-by-step explanation:
34.982 + 45.8 + 3.4298=84.2118
your answer must be simplified x/25 > 5
Answer:
[tex]x>5[/tex]
Step-by-step explanation:
[tex]\frac{x}{25}>5\\\\25(\frac{x}{25})>25(5)\\\\\frac{x}{1}>125\\\\x>125\\\\\underline{x>5}\Longleftarrow\:Answer[/tex]
12 feet =. . Yards
Help
Answer:
4
Step-by-step explanation:
How many yards in 12 feet?
1 yd
Multiply 12 feet by the conversion factor --------------- obtaining 4 yd
3 ft
if 300 people come to the gym on a given day, approximately how many people would you expect to exercise for more than 136 minutes?
===========================================================
Explanation:
Add up the numbers in the second column:
4+19+25+32 = 80
There are 80 people being surveyed in the table.
Of those 80 people surveyed, 32 of them exercised for more than 136 minutes.
The probability of selecting someone who exercised for more than 136 minutes is the fraction 32/80 = (16*2)/(16*5) = 2/5
----------
Multiply this probability with the larger sample size of 300 to get
(2/5)*300 = 0.4*300 = 120
We estimate that 120 people would exercise for more than 136 minutes.
Note that 120/300 = 2/5.
The two circle graphs show the popularity of five subjects in a high school in 2000 and again in 2008. Students were asked to name their favorite subject each year. The total student population was the same in 2008 as it was in 2000. What do the graphs show? A) More students chose chemistry in 2008. B) Math was chosen more often in 2008 than in 2000. C) Twice as many students picked history in 2008 as did in 2000. D) English was the second most popular subject in both 2000 and 2008.
Answer:
Gross Domestic Product (GDP) includes all final goods and services produced within a country, in a specific period and doesn't necessarily include all the transactions that are going in the economy.
For example: Used domestic car buying or selling won't be counted for the GDP of current year, as it was manufactured and sold in 2000.\]Step-by-step explanation:
Let's check one by one
#1
Chemistry remains 13%False
#2
Yes 5%-->7% increaseTrue
#3
Yes 15(2)=30%True
#4
In 2000 but not in 2008False
What is the least common multiple of 3, 8, and 11?
Answer:
264
Step-by-step explanation:
Answer: The Least Common Multiple (LCM) for 3, 8 and 11, notation LCM (3,8,11), is 264 Solution by using the division method This method consists of grouping by separating the numbers that will be decomposed on the right side by commas while on the left side we put the prime numbers that divide any of the numbers on the right side.
What’s -7 - - 1
And why?
Answer:
-8
Step-by-step explanation:
when there are two negetive numbers you add them not subtract
What is the quotient of StartFraction 7 Superscript negative 1 Baseline Over 7 Superscript negative 2 Baseline EndFraction? StartFraction 1 Over 343 EndFraction One-seventh 7 49.
The quotient of two expressions is the division of the expressions
The quotient of [tex]\frac{7^{-1}}{7^{-2}}[/tex] is 7
How to determine the quotientThe expression is given as:
[tex]\frac{7^{-1}}{7^{-2}}[/tex]
Rewrite the above expression by applying the law of indices
[tex]7^{-1 + 2[/tex]
Simplify the exponent
[tex]7^{1[/tex]
Evaluate the exponent 7 raise to the power of 1
7
Hence, the quotient of [tex]\frac{7^{-1}}{7^{-2}}[/tex] is 7
Read more about quotient at
https://brainly.com/question/7068223
Answer:
D.
Step-by-step explanation:
Find the slope of the line passing through the two points (-2,1) (6,-1)
Answer:
-1/4
Step-by-step explanation:
We use the formula:
[tex] \frac{y₂ -y₁}{x₂ -x₁} [/tex]
plugging in we have
[tex]\frac{ (- 1)-(1)}{(6) -( - 2)} = \frac{ - 2}{8} = - \frac{1}{4} [/tex]
Therefore our slope is -1/4
someone pls help me with this
Answer:
1 =125
2=55
3=95
...........
Multiply (9 - 4i)(2 + 5i)
Answer:
38+37i
Step-by-step explanation:
Please help it's urgent
Answer:
no solutions exist
Step-by-step explanation:
You can rewrite the denominator as:
-2(2x-6) so the equation becomes:
[tex]-\frac12 \cdot \frac{2x-6}{2x-6} > 0[/tex]
from which you can see that not only should x ≠ 3, but for all values of x≠3 the equation is false.
12-inch-tall boxes are being stacked next to 8-inch-tall boxes.
What is the shortest height at which these two stacks will be the same height?
Answer:
First, we have to find the LCM of 12 and 8 which would be 24. Since we have to multiply 8 by 3, and 12 by 2, then the shortest height would be two 12-inch boxes, and three 8-inch boxes.
Step-by-step explanation:
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