9514 1404 393
Answer:
u = -45/7 = -6 3/7
Step-by-step explanation:
It can work well to eliminate fractions first. Here, we can do that by multiplying by the product of their denominators: 12.
-4u -48 = 3u -3
-45 = 7u . . . . . . . . add 3+4u
-45/7 = u . . . . . . divide by the coefficient of u
__
Check
(-1/3)(-45/7) -4 = (1/4)(-45/7) -1/4
15/7 -4 = -45/28 -7/28
-13/7 = -52/28 . . . true
Benjamin decides to treat himself to breakfast at his favorite restaurant. He orders chocolate milk that costs \$3.25$3.25dollar sign, 3, point, 25. Then, he wants to buy as many pancakes as he can, but he wants his bill to be at most \$30$30dollar sign, 30 before tax. The restaurant only sells pancakes in stacks of 444 pancakes for \$5.50$5.50dollar sign, 5, point, 50.
Answer:
C. 3.25 + 5.50S ≤ 30
Step-by-step explanation:
The given parameters are;
Chocolate milk = $3.25
A stack of four pancakes = $5.50
Number of pancakes in one stack = 4
Let
S = number of stacks of pancakes Benjamin buys
Cost of the pancakes Benjamin buys = $5.5 × S
= 5.5S
The maximum amount Benjamin wants his bill to amount to = $30
The inequality is
Cost of chocolate milk + Cost of pancakes Benjamin buys ≤ $30
$3.25 + $5.50S ≤ $30
3.25 + 5.50S ≤ 30.
Option C is the correct answer
C) C 3.25 + 5.50 S ≤ 30
3.25+5.50S≤303, point, 25, plus, 5, point, 50, S, is less than or equal to, 30
there are 40 students in a class. 60% are boys. 25% of the boys have brown hair. how many boys have brown hair?
Answer:
10 boys have brown hair
Step-by-step explanation:
40 x .25 = 10
Answer:
10 boys
Step-by-step explanation:
Jonah drives his car to and from work. The total length of the trip to and from work is 19.6 miles. in August, Jonah worked 27 days.
How many miles in all did Jonah drive to and form work that month? Complete the explanation.
19.6
X 27
Jonah drove __________ miles in August.
Answer:403.2
Step-by-step explanation:multiply whole numbers multiply 19.6 times 27 which = 158.4
A moving company is able to move 92 boxes every hour. How many boxes are they able to move during an 8-hour workday?
1 hour= 92 boxes moved so
92 x 8 hours = 736
So 736 boxes were moved in 8 hours
Answer:
They wold be able to move 736 boxesStep-by-step explanation:
1) - 10 + 14 =- 13
No entiendo JAJJAA
Answer:
4
Step-by-step explanation:
Estas mal porque si tu le debes a alguien 10 dollares yo le das 14 hora te sobra 4 dollares
You're wrong because if you owe someone 10 dollars, I'll give them 14 hours, you have 4 dollars left over.
The length, in centimeters, of a
rectangle is represented by an
expression, as shown in the diagram
below.
2 + 745
Based on the diagram, which of the
following is closest to the length, in
centimeters, of the rectangle?
Answer:
88
Step-by-step explanation:
rearrange the equation A=xy to solve for x
Answer:
x = A/y
Step-by-step explanation:
A=xy
Dividing both sides by y,
x = A/y
complete the statement and name the property
If 5(x+8)=2, then _+_=2
property:
There are twelve members of the mu alpha theta math team. Membership is open to all students, male and female, enrolled in Algebra 1 or higher math courses.
Part A: An equation that represents the situation is
SELECT ONE
12 - b + g
b - g = 12
12 = b + g
12 - (b + g)
g + 12 = b
Part B: This equation has
a finite number of solutions
infinitely many solutions
no solutions
because
there are an unlimited number of combinations of real numbers whose sum is twelve
there are no combinations of real numbers whose sum is twelve
the number of boys or girls must be a natural number
Part C: An ordered pair that cannot be used to represent this situation is
(2, 10)
(9, 3)
(8, 4)
(7.4, 4.6)
PLEASE ALSO SHOW YOUR WORK!!!
Answer:
Part A:
12 = a + b
Part B:
Infinitely many solutions
There are unlimited number of combinations of real numbers whose sum is twelve
Part C:
(7.4, 4.6)
Step-by-step explanation:
Part A:
Let g = The number of female students in the mu alpha theta math team, and b = The number of male students in the mu alpha theta math team
The total number of students in the team = 12
Therefore, we have;
b + g = 12
Which is the same as 12 = a + b
Part B: The equation has infinitely many solutions because, there are unlimited number of combinations of real numbers whose sum is twelve
Part C: An ordered pair that cannot be used to represent this situation is (7.4, 4.6) because the number of boys and the number of girls must be natural numbers.
What is the answer to this problem?!
Answer:
A
Step-by-step explanation:
Answer:
A.) y=1/2x
Step-by-step explanation:
Because the y-intercept is zero you don't need to add it so b and d are eliminated. The slope is going upwards not downwards so it eliminates c and it only lefts A with the right answer
Hope this helps
Wolfrich vivió en Portugal y Brasil para aprender portugués durante un período de 14 meses. Aprendió un promedio de 139 palabras nuevas por mes cuando vivió en Portugal y un promedio de 150 palabras nuevas cuando vivió en Brasil. En total aprendió 1920 palabras nuevas. ¿Cuánto tiempo vivió Wolfrich en Portugal y cuánto tiempo vivió en Brasil?
Pregunta completa :
Wolfrich vivió en Portugal y Brasil para aprender portugués durante un período de 14 meses. Aprendió un promedio de 130 palabras nuevas por mes cuando vivió en Portugal y un promedio de 150 palabras nuevas cuando vivió en Brasil. En total aprendió 1920 palabras nuevas. ¿Cuánto tiempo vivió Wolfrich en Portugal y cuánto tiempo vivió en Brasil?
Responder:
Portugal = 9 meses
Brasil = 5 meses
Explicación paso a paso:
Dado que:
Total de meses pasados tanto en Brasil como en Portugal) 14 meses
Dejar ;
tiempo pasado en Brasil = b
Tiempo pasado en Portugal = p
Promedio de palabras aprendidas por mes en Brasil = 150
Promedio de palabras aprendidas por mes en Portugal = 139
Total de palabras aprendidas = 1920
Matemáticamente;
150b + 130p = 1920 - - - (1)
b + p = 14 - - (2)
b = 14 - p
De 1)
150 (14 - p) + 130p = 1920
2100 - 150p + 130p = 1920
2100 - 20p = 1920
2100 - 1920 = 20p
180 = 20p
p = 9
b = 14 - p
b = 14 - 9
b = 5
Por lo tanto;
Portugal = 9 meses
Brasil = 5 meses
At Park Junior High, 10%, or 160, of the students, play a musical instrument. How many students attend the school?
A tape diagram. StartFraction part Over whole EndFraction = StartFraction 10 Over 100 EndFraction = StartFraction 160 Over question mark EndFraction
Which statements are correct? Check all that apply.
The total number of students is 160.
The percent as a part-to-whole ratio is StartFraction 10 Over 100 EndFraction.
The percent as a part-to-whole ratio is StartFraction 160 Over 100 EndFraction
There are 1,600 students in the school.
There are 250 students in the school.
The number of students in the school are represented by percentages
The number of students in the school is 1600
Let the number of students in the school be n.
So, the equation from the question is:
[tex]\mathbf{10\% \times n = 160}[/tex]
Divide both sides by 10%
[tex]\mathbf{n = \frac{160}{10\%}}[/tex]
Express 10% as decimal (0.10)
[tex]\mathbf{n = \frac{160}{0.10}}[/tex]
[tex]\mathbf{n = 1600}[/tex]
Hence, the number of students in the school is 1600
The true statements are (d) and (e)
Read more about proportions and percentages at:
https://brainly.com/question/12662837
Answer:
b, c, e,
Step-by-step explanation:
I did the math
15 points! Picture (after d it asks what is the contrapositive of the statement)
Tickets to the zoo cost $12 for adults and $8 for students. The school has a budget
of $240 to buy tickets for this field trip. An equation representing this situation is is
12x + 8y = 240. The graph for this situation is shown below.
Use the EQUATION and/or GRAPH to answer the following questions.
A Can 16 adults and 6 students attend this trip? Explain/Show your reasoning.
B. If no adults attend the field trip, how many students can go? Explain/Show your
reasoning.
C. If 18 students attend the field trip, how many adults can go? Explain/Show your
reasoning
D. Using the equation provided, SHOW each step to SOLVE for y.
E What are the Y-INTERCEPT and what does it mean?
F. What are the SLOPE and what does it mean?
Answer:
a) yes
b)30
c)8
Step-by-step explanation:
The cost of 10 oranges is $1.00. What is the cost of 5 dozen oranges?
Answer:
6 dollars
Step-by-step explanation:
Answer:
$6
Step-by-step explanation:
10 = $1
5 dozen = 5 x 12 = 60
6*1 = $6
The original price of a dvd is represented by the variable x if the dvd is discounted 45%write a subtraction expression and a multiplication expression. To represent its sale
Answer:
Sale price = x - 0.45x
Step-by-step explanation:
Given:
Original price = x
Discount = 45%
Find:
Sale price
Computation:
Sale price = Original price - Discount
Sale price = x - [(x)(45%)]
Sale price = x - 0.45x
Sale price = 0.55x
what are the steps to solve
|x|=9
Answer:
9 or -9
Step-by-step explanation:
the lines surrounding x are absolute value, which gets rid of negative and positives and simply ask the distance from x on a number line if the absolute value of x is 9, then x is 9 places away from 0 on the number line, so it could be 9 or -9
hope this helps :)
Springboard page 19
2. Last week, Donnell practiced the piano 3 hours longer than Marcus. Together, Marcus
and Donnell practiced the piano for 11 hours. For how many hours did each boy practice
the piano?
Answer:
7 and 4
Step-by-step explanation:
Answer:
7 and 4
Step-by-step explanation:
Let the number of hours Donnell practiced be d
and the number of hours Marcus practiced be m.
We can set up a system of equations.
d = m + 3
m + d = 11
Substitute the value of d that's in the first equation, into the second equation.
m + (m + 3) = 11
2m + 3 = 11
2m = 8
m = 4
Marcus practiced for 4 hours. Since Marcus and Donnell, together, practiced 11 hours, Donnell practiced for 11-4=7 hours.
This is more of a fun one
e = what
a. the 5th letter in the alphabet
b. mc 2
c. mc square
d. its in the alphabet
e. all of the above
f. i don't know
Answer:
c
Step-by-step explanation:
Which of the following lists 3/6, 9/12, 15/18 in order from least to greatest?
Answer:
ok
Step-by-step explanation:
Answer:3/6, 9/12 , 15/18
-step explanation:
3/6, 9/12, 15/18
Making the denominators equal.
18/36 , 27/36 , 30/36
They are already in the correct order.
3/6, 9/12, 15/18
Find the percent increase or decrease
From 64 photos to 21
Group of answer choices
74%
60%
67%
85%
Answer:
cilejjwkwkwkwkwkwkw
i need help with the bottom part please and thank you
Add/Subtract using the proper rules:
(7 + 2i) - (-12 - 41)
Answer:
60+2i
Good Luck!!!
Create a list of steps, in order, that will solve the following
equation.
3(x + 5)+ 2 = 42.5
5
Solution steps (answer choices):
Add 2 to both sides
Multiply both sides by 2
1
Multiply both sides by
2
Subtract 2 from both sides
Subtract 5 from both sides
Square both sides
Take the square root of both sides
Answer:
Step-by-step explanation:
1: Distribute or Divide (3) or Subtract (2)
3 (x + 5) + 2 = 3x + 15
2: Combine like terms
3x + 17 = 42.5 + 5
3: Subtract/Add
3x = 42.5 - 17 + 5
4: Divide/Multiply (If divide in first step, this one is skipped.)
x = 30.5 / 3
5: Solve
x = 10.166...
Please help fast thank you. The problem is in the picture.
Answer:
90°
Step-by-step explanation:
The sum of angle 2 and angle 3 is equal to 90° because ABC is a right triangle.
Answer:
90
Step-by-step explanation:
This is a special right triangle. Now, the angles 1 is 90 degrees that means we have another 90 degrees left. We don't even need to add to know the total of angles 2 and 3 are 90 because every triangle is 180 degrees and every right angle is 90.
Ammonia has three hydrogen (H) atoms and one nitrogen (N) atom. How many of each atom are in five molecules of ammonia?
Answer:
15 Hydrogen 5 Nitrogen
Step-by-step explanation:
If one molecule is H3N, you multiply each quantity by 5 to get the number of atoms of hydrogen and nitrogen.
3Hx5=15H
1Nx5=1N
ANSWER PLEASE I NEED IT RIGHT AWAY ! pleaseeeeeeeeeeee:)
Answer:
y=1.25x+3
Step-by-step explanation:
There are 16 girls in Ms. Bentley's college math class. If 25% of the students are girls, what is the best estimation for the number of boys in the class?
A. 30
B. 40
C. 50
D. 60
Answer:
C. 50
Step-by-step explanation:
First, make a proportion.
16/x = 25/100
where x = total number of students
solving for x, we get x = 64.
64 - 16 girls = 48 boys
The nurse records the height of each eighth grader in your school. Identify the data set as numerical or categorical.
Answer:
The answer is numerical.
Step-by-step explanation:
Numerical data is more as an individual thing, as the nurse is recording each of the 8th grader's heights. Categorical is something that can be places into groups/categories.
Answer:
The nurse records the height of each eighth grader in your school. Identify the data set as numerical or categorical.
categorical data
numerical data
Step-by-step explanation:
B. numerical data
Categorical is something that can be places into groups/categories.
2. In a study of nerve cells, researchers measured the timing of spontaneous electrical discharges in a single organism. The interspike-time intervals were approximately normally distributed with a mean of 15.28 ms and a standard deviation of 0.75 ms. Suppose you measured a random sample of n = 4 interspike-time intervals from this population. a. What is the probability that all four times in your sample are between 15.0 and 16.0 ms? (3pt) b. What is the probability that the sample mean time is between 15.0 and 16.0 ms? (3pt) c. Comparing the probabilities you calculated in parts (a) and (b), which is larger? Even if we changed the mean and standard deviation of this population, briefly explain why this will always be the case. (2pt)
Answer:
Kindly check explanation
Step-by-step explanation:
Given that:
Mean (m) = 15.28
Standard deviation (σ) = 0.75
Sample size (n) = 4
What is the probability that all four times in your sample are between 15.0 and 16.0 ms?
x = 15
Zscore = (x - m) / (σ /√n)
Z = (15 - 15.28) / (0.75)
Z = −0.3733
P(Z < - 0.3733) = 0.35446
X = 16
Z = (16 - 15.28) / (0.75)
Z = 0.96
P(Z < 0.96) = 0.83147
0.83147 - 0.35446 = 0.47701
4 * 0.47701 = 1.90804
B.)
x = 15
Zscore = (x - m) / (σ /√n)
Z = (15 - 15.28) / (0.75/√4)
Z = −0.7467
P(Z < - 0.7467) = 0.22762
X = 16
Z = (16 - 15.28) / (0.75/√4)
Z = 1.92
P(Z < 1.92) = 0.97257
0.97257 - 0.22762 = 0.74495
C.) 1.9084 > 0.74495