Answer:
Tahiya attempted 3 incorrect answers.
Helmin attempted 11 incorrect answers.
Step-by-step explanation:
Correct = +4
Incorrect = -3
1) Tahiya got 12 correct answers and scored a 40, the number of incorrect answers was:
[tex]4*12-3I=40\\I=\frac{8}{3}\\I=2.67[/tex]
2) Helmin got 5 correct answers and scored a -14, the number of incorrect answers was:
[tex]4*5-3I=-14\\I=\frac{34}{3}\\I=11.33[/tex]
In both cases the number of incorrect answers obtained is a fraction, which means that either the data provided is inaccurate, or that the scores obtained by the students are approximate. Let's round the number of incorrect answers to the nearest whole answer.
Tahiya attempted 3 incorrect answers.
Helmin attempted 11 incorrect answers.
Beverly has $50 to spend at an amusement park. She plans to spend $10 for food, and $15 for admission to the park. Each ride costs $1.50 to ride.
Answer:
a b c d e f g h i j k l m o n p q r s t u v w x y z n o w i k n o w m y a b c s n e x t t i m e w o n t y o u s i n g w i t h m e
Step-by-step explanation:
cocomelon
Nikolas and his son, and Peter with his son, went fishing. Nickolas caught as many fish as did his son. Peter caught three times as many as his son did. Altogether they caught 35 fish. Nikolas' son's name is Gregory. What is the name of Peter's son? How many fish did each of them catch?
Step-by-step explanation:
4unit is 35
1unit is 35/4 which is 8.75
what is the value of X in the equation 1/2 X - 3/4 =3/8 - 5/8 X
Answer:
X =1
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
1/2x-3/4=3/8-5/8x
l.c.m=8
multiply both sides by l.c.m(8)
x/2×8-3/4×8=3/8×8-5x/8×8
4x-6=3-5x
4x+5x=3+6
9x=9
divide both sides by 9
9x/9=9/9
x=1
A pile of sand weighs 90kg. the sand is put into a small bag, a medium bag and a large bag in the ratio 2: 3: 7. work out the weight of each sand bag Please help!
Answer:
the first bag is 15 ,the second bag is 22.5 and the third bag is 52.5
Step-by-step explanation:
you take the ratios and add them together 2+3+7=12. then you take 2/12×90=15,3/12×90=22.5,7/12×90=52.5 I think I tried
The weights (lbs.) of the 5 offensive linemen for the High School football team are as follows: 215, 225, 285, 260, and 250. The median weight is:
A)205 lbs
B)250 lbs.
C)247 lbs.
D)None of these choices are correct.
is the centre of a circle always equal distance from all points on the circumference? and why
Answer:
Yes, the center of a circle is always and always equidistant from all the points on circumference because that is because what a circle is called. The distance from the center of the circle to the circumference is called the radius and it is constant for any particular circle.
Pls help as fast as possible
Answer:
452.389342 cubic inches
Step-by-step explanation:
The volume of a sphere is calculated using the formula V = 4/3 pi r^3
to determine the radius, you can notice that 4 spheres take up 24 in in length. This means that the radius of 1 sphere is 24/4/2 = 3 inches.
from there we plug and play: V = 4/3 * pi * 3^3 = 113.097336 cubic inches.
Note that this is only the volume of 1 sphere, so we multiply by 4
and we get 452.389342 cubic inches
Answer:
452.4
Step-by-step explanation:
Radius of each sphere: 24/4/2=3
Formula for volume: (4pir^3)/3
Formula for 4 spheres: 4 times (4pir^3)/3
Substitute 3 for r
What is the product?
3 x [1 -4 5 -7]
This looks like scalar matrix multiplication. The idea here is to multiply the scalar 3 by each item inside the matrix.
Doing so leads to the answer [3 -12 15 -21]
Side note: I'm assuming the matrix given to you has 1 row and 4 columns.
Triangle J K L is shown. Point N is the midpoint of side J L and point M is the midpoint of side K L. The length of J K is 19.6 meters. The lengths of J N and N L are 7.4 meters. The lengths of K M and M L are 10.7 meters. What is the distance between points M and N?
Answer:
i think 9.8 but im not sure
Step-by-step explanation:
The distance between points M and N is; 9.8 meters.
What is the congruent triangle?Two triangles are said to be congruent if the length of the sides is equal, a measure of the angles are equal and they can be superimposed.
From observation, it is given that the line segment MN which joins points M and N is parallel to the line JK. which follows from the fact that M and N are midpoints of KL and JL respectively.
Hence, it states that triangles NLM and JLK are congruent and by the ratio of corresponding sides equality:
NM/19.6 = 7.4/(2×7.4)
Solving;
NM = 19.6/2
NM= 9.8 meters.
This follows that, the ratio of corresponding sides of congruent triangles are equal.
The distance between points M and N is; 9.8 meters.
Read more on congruent triangles;
brainly.com/question/1675117
#SPJ6
What is 3+3/-4+6-34+9
ANSWER:
The answer is -16.75
First divide the division 3/-4 then start the addition and subtraction
Answer:
-67/4 or -16.75
Step-by-step explanation:
Simply plug all of that into the calc and you should get your answer.
Lana has a bowl of marbles the bowl contains 5 green marbles,3 red marbles and 2 blue marbles from the bowl one at a time. What is the probability that lana will select a green marble first, replace the marble, then select a red marble
Answer:
3/20
Step-by-step explanation:
5 green marbles,3 red marbles and 2 blue marbles from the bowl = 10 marbles
P( green) = green/total = 5/10 = 1/2
Replace
5 green marbles,3 red marbles and 2 blue marbles from the bowl = 10 marbles
P( red) = red/total = 3/10
P(green,replace, red) = 1/2 * 3/10 = 3/20
Find the volume of the prism.
13ft 7ft
Answer:
the volume of the prism is VOLUME=BASE*HEIGHT
Step-by-step explanation:
SO it's ,
13*7=91ft
Answer:
591.5 ft^3
Step-by-step explanation:
What is an equation in point-slope form of the line that passes through (1, -6) and (4, 6)?
Answer:
[tex]y+6=4(x-1)[/tex] or [tex]y-6=4(x-4)[/tex]
Step-by-step explanation:
We want to find the equation in point-slope form of the line that passes through the two points (1, -6) and (4, 6).
Recall that point-slope form is given by:
[tex]y-y_{1}=m(x-x_{1})[/tex]
Where m is the slope.
Find the slope m using the two given points.
[tex]\displaystyle m = \frac{\Delta y}{\Delta x} = \frac{6-(-6)}{4-1} = \frac{12}{3} = 4[/tex]
Substitute. We can use either point. Using the point (1, -6), we acquire:
[tex]y-(-6)=4(x-(1))[/tex]
Simplify:
[tex]y+6=4(x-1)[/tex]
And using the point (4, 6), we acquire:
[tex]y-(6)=4(x-(4))[/tex]
Simplify:
[tex]y-6=4(x-4)[/tex]
does anyone know this??
complete the solution of the equation. Find the value of y when x equals
-30 -2x - 3y = 42
Answer: y = 6
Step-by-step explanation:if x = -30 then -2 x = 60 so 60 - 42 = 18 divide that by 3 and you get y.
This figure is made up of a triangle and a semicircle. What is the area of this figure? Use 3.14 for pi. Round only your final answer to the nearest tenth. Enter your answer, as a decimal, in the box
Answer:
Area = 14.8 units²
Step-by-step explanation:
Base of Triangle = 2 units
Height of Triangle = 5 units
Radius of the semi circle = 2.5 units
Now,
Triangle:
Area of triangle = 1/2(base*height)
Area = 1/2(2*5)
Area = 1/2(10)
Area = 5 units²
Semi-Circle:
Area of semi-circle = 1/2(πr²)
Area = 1/2(3.14)(2.5)²
Area = 1/2(3.14)(6.25)
Area = 9.8 units²
Area of the figure:
Area = 5 + 9.8
Area = 14.8 units²
3 7 of students at a school are boys. If there are 2282 students at the school, how many are girls? plz help me
Answer:
2245
Step-by-step explanation:
2282-37=2245
2245 students are girls
Answer:
1304
Step-by-step explanation:
3/7 of students are boys
total students= 2282
girls are 1-3/7= 4/7 of all students
girls= 2282*4/7= 1304
Please help me :( struggling
C. exponential decay
0.000000205
In standard form
Answer:
2.05 × 10⁷
Step-by-step explanation:
0.000000205
We'll move the decimal point after the first non-zero digit (as per the scientific notation rules) and the standard form would be :
=> 2.05 × 10⁷
Answer:
205 × [tex]10^{-9}[/tex]
Step-by-step explanation:
[tex]10^{-9} = 0.000000001[/tex]
0.000000001 × 205 = 0.000000205
Can anyone help me with this answer:
One of the zeroes of the polynomial 2x2 + 7x –4 is
(A) 2
(B)1/2
(C) -1/2
(D) –2
Answer:
Option B
Step-by-step explanation:
For this we'll put all of these options in place of x
Number 1:
=> [tex]2(2)^2+7(2)-4[/tex]
=> 2(4)+14-4
=> 8+10
=> 18
So, This is not the zero of the polynomial
Number 2:
=> [tex]2(1/2)^2+7(1/2)-4[/tex]
=> 2(1/4)+7/2-4
=> 1/2+7/2-4
=> [tex]\frac{1+7-8}{2}[/tex]
=> [tex]\frac{8-8}{2}[/tex]
=> 0
Yes, This is the zero of the polynomial having zero as an answer
So, We'll end the solution here because we have found the zero of the polynomial.
Hope this helps :)
PLEASE ANSWER ASAP!!!!! DONT NEED much explanation How many solutions does this system have? (photo below)
Answer:
infinite solutions
Step-by-step explanation:
Multiply the first equation by 2
2(3x-5y) = 2*15
6x - 10y = 30
This is the same as the second equation
They are the same line
This means there are infinite solutions
Check all that apply in regards to the given sequence:
5, 8, 11, 14, 17, 20, 23, ...
Answer:
see explanation
Step-by-step explanation:
There is a common difference d between consecutive terms, that is
d = 8 - 5 = 11 - 8 = 14 - 11 = 17 - 14 = 20 - 17 = 23 - 20 = 3
This indicates the sequence is arithmetic
The common difference d = 3
The first term a₁ = 5 and
a₈ = 23 + 3 = 26
How many square feet are there in a strip of carpet 4 feet wide and 11 feet long
Answer: There is 44 square feet in the total area of the carpet!
Step-by-step explanation:
4x11=44! Let me know if this helped! <3
Which of the following represents a constant from the expression given ?
Answer:
The answer in D.
Step-by-step explanation:
In a quadratic expression, ax² + bx + c, c will be the constant.
Answer:
the asnwer is 9
Step-by-step explanation:
my brain hurting can u help
What is the percent of 3.16 to 3.70
Answer:
85.4054%
Step-by-step explanation:
3.16/3.7 × 100
Divide.
0.854054 × 100
Multiply.
= 85.4054
PLZ HELP ME THANKS Solve each application using algebra. Write your equation or inequality and show your solving steps.... A 10-meter wire is cut into 2 unequal pieces. The large piece is 3 meters less than twice the smaller piece. Use algebra to determine the lengths of each piece
Answer:
4 1/3 m and 5 2/3 m
Step-by-step explanation:
smaller piece -l
large piece=2*l-3
l+2l-3=10
3l-3=10
+3 +3
3l=13
:3 :3
l=13/3=4 1/3 m
L= 2*13/3 -3=26/3-9/3=17/3=5 2/3m
Answer:
[tex]Small=4\frac{1}{3}[/tex]
[tex]Large=5\frac{2}{3}[/tex]
Step-by-step explanation:
Small = x
Large = 2x - 3
3x - 3 = 10
3x = 13
[tex]x=\frac{13}{3}[/tex]
[tex]Small=\frac{13}{3}[/tex]
[tex]Large=5\frac{2}{3}[/tex]
Para alavancar seus lucros, o dono de uma empresa passou a investir mais no meio digital, começando pelo seu site. Com base em uma análise de 6 meses, percebeu que, para cada x reais investidos dentro de um mês, a quantidade y de visualizações de seu site obedecia à função F(x)=40x+80 o valor que ele deverá investir, no próximo mês, para que o seu site alcance 35 000 visualizações é?
Answer:
85.5 reals
Step-by-step explanation:
Aqui, usando a função de análise, queremos saber a quantidade de dinheiro que deve ser investido para fornecer o número de visualizações.
A maneira como podemos resolver isso é através da substituição. Precisamos apenas substituir F (x) na equação e resolver x, o que nos dará a idéia da quantidade de dinheiro a ser investido.
matematicamente
F (x) = 40x + 80
3500 = 40x + 80
40x = 3500-80 40x = 3420 x = 3420/40
x = 85,5 reais
factorize
[tex]9 - 4 {m}^{2} [/tex]
in algebra expression...
Answer:
(3+2m)(3-2m)
Step-by-step explanation:
(3+2m)(3-2m)
Which coordinate grid shows Point A at (0.75, −1.50)? Coordinate grid shown from negative 2 to positive 2 on the axis and negative 2 to positive 2 on the y-axis in increments of 1 over 4. Only the whole numbers are labeled. A point A is shown at the intersection of 6 grid lines to the left of the y-axis and 3 grid lines above the x-axis. Coordinate grid shown from negative 2 to positive 2 on the axis and negative 2 to positive 2 on the y-axis in increments of 1 over 4. Only the whole numbers are labeled. A point A is shown at the intersection of 6 grid lines to the right of the y-axis and 3 grid lines below the x-axis. Coordinate grid shown from negative 2 to positive 2 on the axis and negative 2 to positive 2 on the y-axis in increments of 1 over 4. Only the whole numbers are labeled. A point A is shown at the intersection of 3 grid lines to the left of the y-axis and 6 grid lines above the x-axis. Coordinate grid shown from negative 2 to positive 2 on the x-axis and negative 2 to positive 2 on the y-axis in increments of 1 over 4. Only the whole numbers are labeled. A point A is shown at the intersection of 3 grid lines to the right of the y-axis and 6 grid lines below the x-axis.
Answer:
( fraction negative 1 over 4, fraction 1 and 3 over 4 )
Step-by-step explanation:
Answer:
1st one will be it!
Step-by-step explanation:
if BPD and dpc have a sum
of 72 degrees What is APC?
A. 18°
B 90°
D.180°