Answer:
A.$3.00
B.$40.50
C.$7.29
D.$47.79
BRAINLIEST PLEASE!!!!!!!!!!!!!!!!!!!!On a 28-question test, there are 2-point questions, 4-point questions, and 5-point questions. The test is worth a total of 100 points. There are twice as many 2-point questions as 5-point questions on the test. How many 2-point questions are on the test?
3.Write a series of equations that could be used to solve this. define your varbibles
4.Solveby any algebraic method. Work must be shown.
Answer:
The test has 8 questions of 2 points, as well as 16 of 4 points and 4 of 5 points.
Step-by-step explanation:
Since, on a 28-question test, there are 2-point questions, 4-point questions, and 5-point questions, the test is worth a total of 100 points and there are twice as many 2-point questions as 5- point questions on the test, to determine how many 2-point questions are on the test, the following calculation must be performed:
18 x 2 + 9 x 5 + 1 x 4 = 36 + 45 + 4 = 85
16 x 2 + 8 x 5 + 4 x 4 = 32 + 40 + 16 = 88
14 x 2 + 7 x 5 + 7 x 4 = 28 + 35 + 28 = 91
12 x 2 + 6 x 5 + 10 x 4 = 24 + 30 + 40 = 94
10 x 2 + 5 x 5 + 13 x 4 = 20 + 25 + 52 = 97
8 x 2 + 4 x 5 + 16 x 4 = 16 + 20 + 64 = 100
Thus, the test has 8 questions of 2 points, as well as 16 of 4 points and 4 of 5 points.
The age of a car and the value of the car
Positive correlation
Negative correlation
No correlation
Answer:
negative correlation ( age of the car increases value of it decreases)
(a) 3.2% of 360 (b) 2.7% of 90 (c) 12.8% of 240 (d) 0.8% of 450 (e) 0.5% of 500 (f) 0.25% of 320
Answer:
listen i would do this for u bit i gtg so what u can do is:
Step-by-step explanation:
time them into your calculator moving the decimal 2 spots over for example the first one would be .032 x 360 and just do that for all of them
Which of the series below converge? 1 + 9 + 81 + 729 + … 1 + 0.25 + 0.0625 + 0.015625 + … 625 – 125 + 25 – 5 + … 8 – 16 + 32 – 64 + …
Answer:
B, C, E
Step-by-step explanation:
Got it right on edge
The series C: 625 – 125 + 25 – 5 + … converges. Explanation given.
What is common ratio?The distance between each number in a geometric series is known as the common ratio. The ratio between two consecutive numbers, or a number divided by the number before it in the sequence, is known as the common ratio since it is the same for all numbers or common.
Given series:
A: 9 + 81 + 729 + …
B: 1 + 0.25 + 0.0625 + 0.015625 + …
C: 625 – 125 + 25 – 5 + …
D: 8 – 16 + 32 – 64 + …
To prove convergence:
A: 9 + 81 + 729 + …
Simplifying,
9 + (9)² + (9)³+ ....
The first term = 9
The second term = (9)²
So, the ratio = 9
That means, the geometric series with common ratio
IrI = 9 > 1
So, if the common ratio of geometric series is greater than 1 then the series diverges.
B: 1 + 0.25 + 0.0625 + 0.015625 + …
Simplifying,
1 + (1/4) + 1/(4)²+ ....
The first term = 1
Second term = 0.25
Third term = 0.0625
The ratio r = 4
IrI = 4 > 1
So, if the common ratio of geometric series is greater than 1 then the series diverges.
C: 625 – 125 + 25 – 5 + …
Simplifying,
The first term = 625
Second term = 125
Third term = 25
The ratio r = -125/625 = -1/5
IrI = 1/5 < 1
So, if the common ratio of the series is lesser than 1 then the series converges.
D: 8 – 16 + 32 – 64 + …
The first term = 8
Second term = -16
The ratio = -16/8 = -2
IrI = 2> 1
So, if the common ratio of the series is greater than 1 then the series diverges.
Therefore, the series C converges.
To learn more about the common ratio;
https://brainly.com/question/13637951
#SPJ2
A right triangle is a triangle that includes one right angle, measuring 90
degrees. It doesn't matter which of the three angles is 90 degrees. As long as
one of them is, it's a right triangle.
What does a triangle need to have in order to be a right triangle?
A
two sides of equal length
B
one 90 degree angle
C
one obtuse angle
D
three sides of equal length
Answer:
B) one 90 degree angle
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
i know
−7+( 63/9) i have no clue what this is
Answer:
0 (Zero)
Step-by-step explanation:
Order of Operations:P (Parentheses)E (Exponents)M (Multiplication)D (Division)A (Addition)S (Subtraction---------------------------------------------------------------------------------------------How to Use Order of Operations(PEMDAS) in This Equation:When having a equation with multiple steps you go down the list(shown above). Parentheses are first there for you do that first. After that you don't see any exponents, multiplication or division. You see addition, so you do the addition portion of the equation. You don't need subtraction since the problem is solved after the addition portion is done.----------------------------------------------------------------------------------------------Solving the Equation:First you need to do the equation in the parentheses then add -7Sooooo:63/9=7-7 + 7=0Your answer is 0 ----------------------------------------------------------------------------------------------I hope I was able to help!! :)
Solve the inequality for v.
5v-9> 66
Answer:
v>15
Step-by-step explanation:
add 9 to 66
5v>75
v>15
Answer: v>15
Step-by-step explanation:
The inequality can be treated as an equal sign and solved normally. Add 9 to both sides to get 5v>75, then divide to get v>15.
NOTE: If an inequality is divided by a negative number, the sign flips (> to <, etc.)
PLEASE HELP ME BEST ANSWER GETS BRAINLIEST NO SCAMS PLEASE!
This is an example of a random sample: Surveying people in the library about whether they like to read books.
True
False
Answer:
False
Step-by-step explanation:
People reading in a library are most likely going to like to read books
Answer:
false i thin if not sorry
Step-by-step explanation:
YEE YEE
What is the inverse quadratic function?
Which graph represents the function?
f(x)=−x2+x+6
If PQRS is a kite, find m angle Q
Answer:
m<Q = 78°
Step-by-step explanation:
First, find the value of x:
7x + 2 = 10x - 31 (Non-vertex angles of a kite are congruent to each other)
Collect like terms
7x - 10x = -2 - 31
-3x = -33
Divide both sides by -3
x = 11
Find m<Q:
Sum of all angles in a kite = 360°
Therefore,
m<Q + m<P + m<S + m<R = 360°
m<Q + (7x + 2) + 124 + (10x - 31) = 360
Plug in the value of x
m<Q + (7*11 + 2) + 124 + (10*11 - 31) = 360
m<Q + 79 + 124 + 79 = 360
m<Q + 282 = 360
Subtract 282 from both sides
m<Q + 282 - 282 = 360 - 282
m<Q = 78°
Ibrahim filled a bucket with 5 7/8 gallons of water. Later, he poured out 4 5/8 gallons of the water. How much water is left in the bucket?
Answer:
1 2/8 gallons are left
Step-by-step explanation:
5 7/8 - 4 5/8= 1 2/8
How do write 400% as a fraction , mixed number, or whole number
Answer:
400/10
Step-by-step explanation:
yeet
Answer:
4
Step-by-step explanation:
400% = 400/100 = 4
FREE BRAINLIST NEED HELP ASAP
Answer:
A
Step-by-step explanation:
She has completed 50 sit-ups, which is 25% of her goal for sit-ups. How many total sit-ups does Sami
plan to do? Use the tape diagram to solve.
Triangle Theorems helppppppp
Answer and Step-by-step explanation:
Answer is in picture.
The angles of a triangle add up to 180.
There are TWO 9x + 1 because they are the base angle pairs.
I hope this helps!!
#teamtrees #PAW (Plant And Water)
ABC is dilated by a factor of 4 to produce A’B’C.
Answer:
I am expecting that option a or c is correct answer
Answer:
its b
Step-by-step explanation:
PLEASE HELP URGENT!!
WILL GIVE BRAINLIEST
find the area of the composite figure.
-126 cm2
-140 cm2
-252 cm2
-280 cm2
Answer:
252cm².because,
we know Formula for finding Area of Trapizm.
That is,
1/2 × Sum of length of parallel sides × Height.
Here, we have 2 congruent Trapizm.
so,
Lengths of parallel sides = 16 and 20.
16 + 20 = 36.
Height = 7 cm.
Using Formula.
1/2 × 36 × 7
18 × 7
126 cm²
Here, we have two Trapizm...
so that..
126 × 2 = 252cm².
Answer:
252cm².
Step-by-step explanation:
I took the test
I need help with this
Answer:
y=10x
Step-by-step explanation:
legit just searched it up
Seven clowns hold 4 balloons each at the fair. Draw and label a tape diagram to show the total number of balloons the clowns hold.
Answer:
7 times 4 which is 28 at each fair.
9 3/8- 8 7/8
I don't get it, my teacher wants it to not be an improper fraction but when I did the work, I got 2 and 12/8.
Can Someone help?
Answer:
1/2 I think
Step-by-step explanation:
9 3/8 becomes 8 11/8- 8 7/8= 4/8= 1/2
Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
[tex]9\frac{3}{8} -8\frac{7}{8}[/tex]
Let's convert these to improper. To do this, we will multiply the denominator by the whole number and then add the numerator. The denominator will remain the same. We are just changing the numerator.[tex]9\frac{3}{8} =\frac{(8*9)+3}{8} =\frac{72+3}{8}= \frac{75}{8}\\8\frac{7}{8} =\frac{(8*8)+7}{8} =\frac{64+7}{8}= \frac{71}{8}[/tex]
Let's subtract:
[tex]\frac{75}{8} -\frac{71}{8} \\\\\frac{4}{8}[/tex]
[tex]\frac{4}{8}[/tex] can be reduced to [tex]\frac{1}{2}[/tex]
Type your answer in the box.
b=2 y=6 o=4.
b3 - y - o
Answ
70
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
just took the quiz
The sum of 7 and twice a number is 4. Write an equation.
HELP ASAP I WILL MARK BRAINLIST!!!!
Answer 25 degrees
Step-by-step explanation:
90-65 =25
An acre is equal to 43,560 square feet, and there are 5280 feet in a mile.
If a farm has the shape of a rectangle measuring 0.6 miles by 1.2 miles, what is the area of the farm in acres?
Answer:
=537.6 acres
Step-by-step explanation:
1 acre = 43560 ft^2
5280ft = 1 mile
Area of the farm
0.6miles×1.2miles = 3168ft×6336ft
=23,417,856ft^2
=23,417,856÷43560
=537.6 acres
Find the area of the circle below
Answer:
28.27433
Step-by-step explanation:
using the pie radius squared formula
pie radius squared=pie 3 squared
answer is 28.27433
same reason as the person above
Evaluate the following
Lim (xcotx)
x->00
Answer:
1
Step-by-step explanation:
Evaluate the following
Lim (xcotx)
x->0
Note that cotx = cosx/sinx
The expression becomes
Lim (xcotx) = Lim (xcosx/sinx)
x->0 x->0
= 0cos0/sin0
= 0/0 )(ind)
Apply l'hospital rule
= Lim d/dx(xcosx/sinx)
x->0
= lim (-xsinx + cosx)/cosx
x->0
= -0sin0+cos0/cos0
= 0+1/1
= 1/1
= 1
Hence the limit of xcotx as x tends to zero is 1
anyone out here play fn or 2k? cause when i get my game bck im trynna run 10-15 only
Answer:
I do but I only play fn not 2k
You NEVER distribute a coefficient of an absolute value. True or False?
Answer:
TRUE!!!!!!!!!
Step-by-step explanation:
need help ASAP! please answer
Answer:
c
a
Step-by-step explanation: