Answers
Answer:
78%
Step-by-step explanation:
Ok to solve this we can write this as
80 = [tex]\frac{73+82+85+83+x}{5}[/tex]
We put the equation like this because were finding out how much he needs to get on his 5th test x in order to get a 80%
Your grade is the average of all of your scores hence the divided by 5
We next multiply both sides of the equation by 5 to get
400 = 72+82+85+83+x
400= 322+ x
78 = x
He must get a 78% minimum on his next test to get 80%
Hope that helps!
Related Questions
y varies directly as x if y is 2 when x is 8 then the constant of variation is 1/4
a.true
b.false
Answers
Answer:
a. True.
Step-by-step explanation:
y = kx
y = 2 when x = 8 gives:
2 = 8 * k
k = 2/8 = 1/4.
Help with this pleeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeease lol
Answers
Answer:
6- D
4- A
3- A
Step-by-step explanation:
Answer:
6. = D
4. = A
Step-by-step explanation:
6. 2(2.5)= 5
4(2.5)= 10
6(2.5) =15
9(2.5) is not 21 its 22.5
4. 125÷5 = 25
7. In the box plot below, which quarter of the data has the greatest spread of numbers?
A. 1st
B.2nd
C.3rd
D.4th
Answers
Answer:
Step-by-step explanation: number 1
A chocolate company makes dark chocolate bars. The quality control department of the company has found that the weights of the chocolate bars follow a normal distribution, with a mean of 85 grams and standard deviation of 1.2 grams. To ensure a consistent product, the company has a policy to reject any chocolate bars weighing less than 82.6 grams or more than 87.4 grams. Approximately what percent of chocolate bars are rejected?
a. 0.12%
b. 0.15%
c. 0.30%
d. 2.50%
e. 5.00%
Answers
Answer plsss........
Answers
1. x+12
2. x-8
3. 3*x
4. x^(2)+5
5. (x/2)+7
6. 4*(x+6)
7. (1/2)*x
8. 2x+8
9. x^(2)+3
10. (x/3)+12
Additional activity
1. 2-50
2.20/4=5
3.100-50=50
4.three times two then add to four equals ten
5. the diffrence of eight and four
which of the following has no solution
Answers
please help !! urgent ! :(
Answers
Answer:
a = 15
Step-by-step explanation:
The formula to solve for the above diagram is given as:
Sum of the interior angles in a circle = 360°
(10a - 4)° + (6a - 2)° + (8a + 6)° = 360°
10a - 4 + 6a - 2 + 8a + 6 = 360
24a -6 + 6 = 360°
24a = 360
a = 360/24
a = 15
After eating dinner at a restaurant, Alex's bill before tax is $78.00. The sales tax rate is 8%. Alex decides to leave a 20% tip for the waiter based on the pre-tax amount. How much money will Alex pay total, including tax and the tip?
Answers
Alex's will pay a total of $99.86
Step-by-step explanation:
Tax Rate:
$78.00+8%
8% of $78.00=6.24
78.00+6.24=84.24
Tip:
20% of 78.00=15.6
Total:
(Bill+Tax) 84.24+(Tip)15.6=$99.86
please help with these problems!! It’s getting really late and they’re due !!
Answers
Answer:
b = 9 inches
Step-by-step explanation:
Given that,
The area of triangle LMN = 36 inch²
The height of the triangle, h = 8 inches
We need to find the base of the triangle. The formula for the area of a triangle is given by :
[tex]A=\dfrac{1}{2}bh\\\\b=\dfrac{2A}{h}\\\\b=\dfrac{2\times 36}{8}\\\\b=9\ inches[/tex]
So, the base of the triangle is equal to 9 inches.
A. Zara is learning about surface area and volume in math class. She begins to notice that she can apply this geometry in everyday life. When her mom makes a jelly sandwich for her lunch, Zara notices it is similar to a rectangular prism and decides to measure its dimensions. She measures the length as 13 cm, the width as 10.8 cm, and the height as 3 cm, as shown below. What is the volume of Zara's sandwich? Show your work.
B. What is the surface area of Zara's sandwich? Show your work.
C. Zara cuts her sandwich in half down the middle, dividing it into two equal pieces. She then stacks one half of the sandwich on top of the other, as shown below.
Answers
Use the distributive property to expand (simplify): 5(12mu - 7v)
Answers
Answer:
60mu - 35vStep-by-step explanation:
You disturbute 5 into the 12 and add mu and your answer and distribute 5 into the 7 and keep the v with your answer.Hopes this works.[tex]\textsf{Hi Brainy User, I'm Here to Help you!}[/tex]
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
[tex]\textsf{The \textbf{distributive property} states the following:}[/tex]
[tex].\qquad\bullet\sf{a(b+c)=ab+ac}[/tex]
[tex]\textsf{So we take a number or a variable \textbf{a} and distribute it by multiplying it times b and c}[/tex]
[tex]\textsf{Now we simplify.}[/tex]
[tex]\textsf{5(12mu-7v)=5*12mu-5*7v=60mu-35v}[/tex]
[tex]\Large\textsf{\textbf{Answer: 60mu-35v}}[/tex]
[tex]\Large\overbrace{\underbrace{\boldsymbol{Reflection - RoSe}}}^\star_\star[/tex]
Mike is 6.2 feet tall and casts a shadow that is 10.7 feet long. At the same time, a tree casts a shadow that is 37.5 feet long. How tall is the tree to the nearest tenth of a foot?
Answers
Answer:
I think it's 38
A rectangular prism has a width of 8inches a length of 15inches and a height of 6inches what is the volume ofprism
Answers
Answer: 720 inches
Step-by-step explanation:
To find volume of a rectangular prism, we need to multiply L x W x H , so we would do-
15 x 8 x 6 and get 720in
Answer: Fre.e points :^
Step-by-step explanation: Ty *bows* u-u
Please help I have been stuck for a while now
Answers
Answer:
D
Step-by-step explanation:
The line-of best fit is where a line would be drawn if there was one. The line goes through the majority of the dots and doesn't touch the outliers. Also the line is strait.
Find the area of a parallelogram. If base = 24 cm; height= 15 cm
Find the area of a rectangle. If length = 12 cm; height= 3 cm.
Find the area of a rectangle. If length = 25 cm; height= 4 cm.
Find the area of a square. If one side measures 16 cm. *
6. Find the area of a square. If one side measures 100 cm. *
7. Find the area of a triangle. If base is 24 cm; height = 3. *
8. Find the area of a circle. If the diameter is 10 cm . *
9. Find the area of a circle. If the radius is 7 cm . *
10 . Find the area of a semicircle. If the radius is 4 cm . *
Answers
Answer:
1. 360 , 2.36, 3.100, 4.256, 5.10000 , 6.72,
PLEASE HELP. NO LINKS. NEED REAL EXPLANATION.
Answers
Answer:
Step-by-step explanation:
This is very easy watch
x^2-16x+ __
what do we do to find the blank?
We divide 16 by 2 to get 8
then we take the square of 8
which is 64
so this would be x^2-16x+ 64 = 64
REMEMBER 64 goes to BOTH sides of equation
A circular fountain has a drain in the center. The distance from the drain to the edge of the fountain is 3 feet. What is the circumference of the fountain? Round your answer to the nearest tenth of a foot.
Answers
Answer:
18.8 feet
Step-by-step explanation:
Since the drain is in the center, the distance between the drain and the edge is the radius of the circular fountain.
Use the circumference formula: C = 2[tex]\pi[/tex]r, and plug in 3 as r (the radius).
C = 2[tex]\pi[/tex]r
C = 2[tex]\pi[/tex](3)
Solve for C:
C = 6[tex]\pi[/tex]
C = 18.8
So, the circumference of the fountain is approximately 18.8 feet
HELP CAN SOMEONE HELP ME MATH I'LL GIVE BRAINLIEST
Answers
Answer:
Student C wrote the correct inequality
the inequality will be less than or equal to since we want to spend (exactly) 300 or less. We only buy one jacket for 60 dollars so it will be added seperately to the total number of jackets. We are buying multiple jackets and each jacket costs $40. P = # of pants. So the inequality will look like
60 + 40P (less than or equal to symbol) 300
Hope I'm not too late :)
Find the pattern and use it to list the next two terms in the sequence.
-53, - 45, – 37, - 29,
-53, -45, -37, - 29,
Answers
-21, -13. the pattern is adding 8 . example: -37+8=-29
Please help answer these, thank you
Answers
PLEASE HELP I WILL GIVE YOU BRAINLIEST
Answers
Answer
32
Step-by-step explanation:
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Which of the following expressions is this one equivalent to?
(x4 – 2x3 – x+2) / (x3 - 1)
A. X-2
O B. x2-1
O c. x2+x+1
O D. x2 + 3x + 2
Answers
Answer:
option A
Step-by-step explanation:
(X - 2) is the answer
hope it helps
A line of best fit for a data set has equation y = 3x - 4. What y-value would you predict for an x-value of 8 in this data set?
A 4
B. 8
C. 16
D. 20
Answers
Answer:
D. 20
Step-by-step explanation:
The line of best fit for the equation is:
[tex]y = 3x - 4[/tex]
When x = 8
We have to find y. So
[tex]y = 3*8 - 4 = 24 - 4 = 20[/tex]
So the correct answer is given by option D.
Roger decides to buy a new printer. He wants a printer which prints the most pages per minute (ppm). Printer A can print up to
33
pages per minute, which can be modeled with the equation
p
=
33
m
where
p
represents the number of pages and
m
represents the number of minutes passed. The rate at which the second printer functions is shown in the table.
Which printer should Roger choose, and how many more pages a minute will he be able to print?
Printer A;
5
more pages per minute
Printer A; 5 more pages per minute
Printer B;
2
more pages per minute
Printer B; 2 more pages per minute
Printer B;
5
more pages per minute
Printer B; 5 more pages per minute
It does not matter; both printers print at the same rate.
It does not matter; both printers print at the same rate.
Answers
Answer:
That's alot of words its kinda hard to understand
If a linear function has a slope of 3 and a y- intercept of -6 what is the equation of the graph of the function in slope - intercept form
Answers
Answer:
y=3x-6
Step-by-step explanation:
formula for alope intercept for is
y=mx+b
m is slope
b is y-intercept
factor the expression using gcf 98-70
Answers
Answer:
The Greatest Common Factor (GCF) for 70 and 98, notation CGF(70,98), is 14.
Step-by-step explanation:
the square below is being reduced by a scale factor of one-third. what is the perimeter of the new drawing
Answers
Answer:
one side = 3cm
Step-by-step explanation:
S.f=1/3
1 side=9÷3 = 3
Find the approximate perimeter of the trapezoid? PLSSS HELPPP
Answers
Answer:
49
Step-by-step explanation:
side 1 = |18-3|= 15
side 2 = |12-3| = 9
side 3 = |16-4| = 12
side 4: [tex]\sqrt{(18-12)^2 + (4-16)^2} \\ \sqrt{36+144} \\ = \sqrt{180} \\ = 13,4[/tex]
perimeter = 15 + 9 + 12 + 13,4= 49,4 = 49
After 6 days, the mass m, in grams, of
100 grams of a certain radioactive
element is given by the function
m(t) = 100(0.97). To the nearest percent,
what is the weekly decay rate of the
element?
A 3%
C 21%
B 19%
D 81%
Answers
Answer:
3%
Step-by-step explanation:
Sorry I have no step by step explanation at this time.
Are the expressions equivalent? Select all that apply.
A:3n + 2 - 4n and 2 - n
B:5(3x + 2) and 15x + 10
C:2(r×r×r) and 6r
D:-8(2z – 3) and -16z - 3