Answers
Answer:
23
Step-by-step explanation:
90 + 67 + x = 180
157 + x = 180
x = 23
180=x+67+90 (combined like terms)
180=x+157 (subtract 157 from both sides)
23=x
Related Questions
Exercise #4: Which of the following equations would model an exponential quantity that begins at a level of
16 and decreases at a constant rate of 8% per hour?
(1) Q =16(0.92)
(3) Q =16(1.08)
(2) Q = 16+0.92
(4) Q =16(-7)
Answers
A student's course grade is based on one midterm that counts as % of his final grade, one class project that counts as % of his final grade, a set of homework assignments that counts as % of his final grade, and a final exam that counts as % of his final grade. His midterm score is , his project score is , his homework score is , and his final exam score is . What is his overall final score? What letter grade did he earn (A, B, C, D, or F)? Assume that a mean of 90 or above is an A, a mean of at least 80 but less than 90 is a B, and so on.
Answers
Answer:
The overall score is 75.6
Letter grade is C
Step-by-step explanation:
The question has missing details (See comment section for complete question).
From the complete question, we have:
Proportion:
[tex]Midterm = 15\%[/tex]
[tex]Project = 25\%[/tex]
[tex]Assignment = 40\%[/tex]
[tex]Exam = 20\%[/tex]
Scores
[tex]Midterm = 66[/tex]
[tex]Project = 90[/tex]
[tex]Assignment = 75[/tex]
[tex]Exam = 66[/tex]
Solving (a): The overall score
To do this, we simply calculate the mean of the given data.
The mean is calculated by multiplying each proportion by the scores..
So, we have:
[tex]Overall = 15\% * 66 + 25\% * 90 + 40\% * 75 + 20\% * 66[/tex]
[tex]Overall = 9.9 + 22.5 + 30 + 13.2[/tex]
[tex]Overall = 75.6[/tex]
Solving (b): The letter grade
From the question, we have:
[tex]A: Mean \ge 90[/tex]
[tex]B: 80 \le Mean < 90[/tex]
[tex]C: 70 \le Mean < 80[/tex]
The overall score falls in the following category:
[tex]C: 70 \le Mean < 80[/tex]
Because:
[tex]70 \le 75.6 < 80[/tex]
Hence, the letter grade is C
All the real numbers have reciprocal except
Answers
Hope this helps!
Someone please help fast
Answers
Answer: C. ($720)
Step-by-step explanation: 4% of 3,000 is 120. multiply that my 6 years and you get 720
Mathhhhhhh which ones about slope are true
Answers
Answer:
i think it is, the second one and the fourth one
Step-by-step explanation:
If you spin the spinner 9 times, what is the best prediction possible for the number of times it will land on blue?
Answers
Answer:
0? There's no blue.
Answer:
0
Step-by-step explanation:
Which fraction is equivalent to 33%? (in simplest fraction form)
334%
A)
M
B)
2.
3
.
Alw
D)
wilw
Answers
Answer:
Step-by-step explanation:
33% = 33/100
2x + 10 =28
What is the solution to this equation?
Answers
Work:
2x + 10= 28
2x-10= 28-10
2x= 18
X= 18/2 which equals 9
Solve for x. Round your answer to the nearest tenth (one decimal place).
Answers
Answer:
[tex]\displaystyle x \approx 6.7[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityTrigonometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] cosθ = adjacent over hypotenuseStep-by-step explanation:
Step 1: Define
Angle θ = 78°
Adjacent Leg = x
Hypotenuse = 32
Step 2: Solve for x
Substitute in variables [cosine]: [tex]\displaystyle cos78^\circ = \frac{x}{32}[/tex][Multiplication Property of Equality] Multiply 32 on both sides: [tex]\displaystyle 32cos78^\circ = x[/tex]Rewrite: [tex]\displaystyle x = 32cos78^\circ[/tex]Evaluate: [tex]\displaystyle x = 6.65317[/tex]Round: [tex]\displaystyle x \approx 6.7[/tex]Part of the population of 5,500 elk at a wildlife preserve is infected with a parasite. A random sample of 50 elk shows that 6 of them are infected. How many elk are likely to be infected? Based on the sample, there will likely be infected elk in the wildlife preserve.
Answers
Answer:
5444
Step-by-step explanation:
5,500-50=5,450
5,450-6=5,444
Answer:
x = 660
Step-by-step explanation:
Solve
Write the proportion where x is the number of infected elk6/50 = x/5,500
Cross multiply5500 ÷ 50 = 1100 x 6
x = 660
hellllllllllllllllllllllllllllpppppppppppppppppppppppppppp me
Answers
Answer:
344
Step-by-step explanation:
Answer:
344 beads
Step-by-step explanation:
Multiply 430 by [tex]\frac{4}{5}[/tex]
[tex]430*\frac{4}{5} \\= 430*\frac{4}{5} \\=\frac{1720}{5} \\= 344[/tex]
Therefore, Keisha gives Eduardo 344 beads.
I hope this helps!
Help please, I don't get it.
Answers
Answer:
Given figure is Parallelogram:
Answer of 7:HK=JI(Given;since in a parallelogram opposite sides are equal and parallel always given)
Answer of 8:JH=JH(common side of both the traingles)
Answer of 9:(By SSS axiom of congruency).
A triangle has coordinates at A(-2,0) B(-4,4) and C(1, 6). What are the new locations of the coordinates after a dilation by a scale factor of 4?
Answers
Answer:
Step-by-step explanation:
A phone company charges a sign-up fee of $3.50, plus $x for every hour the phone is
used. If Brian talked on the phone for 12 hours and paid a total of $75.50, which of the
following equations can be used to find, x, the hourly rate of the phone plan?
Answers
Answer:
...........................
please help me im bad at math and i math you as brainlest if you help me
Answers
Answer:
1st one
Step-by-step explanation:
I Only Need #9 Not 10
Answers
Answer:
6
Step-by-step explanation:
Remember the last question? to find circumference you have to multiply the diameter by 3.14? well same here except you divide the circumference by 3.14 to get the diameter. so divide 18.84 ÷ 3.14 = 6
~R3V0
[tex]d= \frac{C}{\pi }[/tex]
[tex]C = \pi d[/tex] (pi times d)
The formula to compute simple interest is /= prt where /is the interest earned in dollars, pis the principal invested in dollars, ris the rate at which it is invested, and tis the time in years of the investment. If Pat invests $500 at 4% for 3 years, how much interest will he earn?
$120
$60
$50
$600
Answers
Answer:
$60
Step-by-step explanation:
I = prt
I = $500 * 0.04 * 3
I = $60
Answer: $60
HELP QUICK!!!!
Complete the table using the rule:
y = x
Х
1
4
9
16
25
у
1
3
4
5
Answers
Answer:
2
Step-by-step explanation:
you substitute the 4 for the x in y = √x and get 2
Can i get help please and thanks
Answers
Answer: 9.21954
it’s pythagorean theorem btw :)
Convert: 5 mi= ________ yd
Group of answer choices
1,760
8,800
8,000
7,040
The ___________________ of an object is how heavy the object is
Group of answer choices
none
length
weight
capacity
The _____________________ of a container is the amount the container can hold.
Group of answer choices
length
capacity
No answer text provided.
weight
A standard coffee mug has a capacity of 16 fluid ounces. If Annie needs to fill 26 mugs with coffee, how many total quarts of coffee does she need?
__________________________________________________________
__________________________________________________________
Convert: 9 T = _____________ lb =
Compare. Write <, > or = Solve.
96 fl oz ___________ 13 c
Compare. Write <, > or = Solve.
25 lb ______________ 384 oz
Compare. Write <, > or = Solve.
8 yd ______________ 288 in.
Convert. 336 oz = _________ lb =
Answers
Answer:
I DONT KNOW BUT
Step-by-step explanation:
PLEASE HELP I CANT MISS ANY MORE QUESTIONS
Andrea has a bag of marbles. Without looking in the bag,
she selects a marble, records its color, and puts it back in
the bag. All marbles are equally likely to be chosen. She
performs the process 50 times. In the 50 trials, she records
the following colors of marbles from the bag.
Number of times a purple marble was chosen 24
Number of times a pink marble was chosen 11
Number of times a yellow marble was chosen 15
Based on the data Andrea collected, what is the estimated probability, in
simplest form, of choosing a purple marble from the bag?
A. 50/24
B. 48/50
C. 12/100
D. 12/25
Answers
Answer:12/100
Step-by-step explanat
Answer:
D. 12/25
Step-by-step explanation:
I NEED HELP. What is the answer?
Answers
Answer:
B
Step-by-step explanation:
Here’s what B has:
Min: 24
Q1: 27
Median: 31
Q3: 33
Max: 34
Although Choice A and B were really close with their five number summaries, out of the two of them, only B had a maximum value of 34, like the one in the box plot shown above.
help me out with this question please :)
Answers
Answer:
yt
Step-by-step explanation:
Graph the function f(x)= -2.5x^2
Answers
Answer is in the pictures I promise nothing bad.
Use desmos to graph stuff by the way.
HELP NEEDED!!!! this is for math and needs to be due at 8. please help me!
Answers
Answer:
1/3
Step-by-step explanation:
So remember slope is y/x.
THe y value is 1st y minus 2nd y. In this case 6-4. This gets you 2
The x value is 1st x minus 2nd x. In this case 8-2. This gets you 6
Put the y and x value into your fraction(y/x) and you get 2/6.
This can be simplfyied as 1/3
Answer
1/3
Ti⊂k∫∈s ω∅∅p
The circumference of a circle is 177 ft. Find its diameter, in feet.
Answers
Answer:
56.3408 ft
Step-by-step explanation:
Evaluate the expression 2x + 5 when x = 4
Answers
Answer:
= 2(4) + 5
= 8 + 5
= 13
Answer:
x= 4 /7
Step-by-step explanation:
y = x2 + 12x + 30
8x − y
Answers
6x+12x +30
18x +30
8x- x2 +12x +30
-4x -x2 + 30
If the x2 was a mistake ignore the second one. The first should be correct.
what two numbers multiply to 10 and add up to 11
Answers
Answer:
1 and 10
Step-by-step explanation:
Answer:
1 and 10
Step-by-step explanation:
1×10=10
1+10=11
3x-5>-41
Solving inequality
Answers
Answer:
x [tex]\geq 11[/tex]
Step-by-step explanation:
x can equal anything -11 and above