Answer:
How much were each?
Step-by-step explanation:
the average mark of three pupils are 68. what is the ratio of 5:4:3. how many marks did the best student get? HELP ME!
Answer:
85, 68, 51
Step-by-step explanation:
Average: The sum of all the numbers divided by the number of numbers
If the ratio of the scores is 5 : 4 : 3, let's just set it as 5x : 4x : 3x
Then using the definition of an average, we can write this equation.
(5x + 4x + 3x) / 3 = 68
Multiply both sides by 3.
5x + 4x + 3x = 68 * 3
Simplify.
12x = 204
x = 17
Now, substitute x = 17 into the original scores (5x, 4x, and 3x)
5x = 5 * 17 = 85
4x = 4 * 17 = 68
3x = 3 * 17 = 51
Just in case, let's check this answer. Find the average of the 3 test scores.
(85 + 68 + 51) / 3 =
204 / 3 = 68
Thus, the answers are correct
How many terms in this question?
Answer:
2?
Step-by-step explanation:
a and b are both terms
What is the area formula for a rectangle?
A: A = (1/2)bh; Area = (1/2) x base x height
B: A= (1/2)(b1 + b2)h; Area = (1/2) x (base1 + base2) x height
C: A = bh; Area base x height
D: A = a^2; Area = side x side
What is the slope of the line in the graph?
-4/3
-3/4
3/4
4/3
Answer:
-3/4
Step-by-step explanation:
If you take two points, the rise is 3. Also, the change in y is 4. Since the line is going downwards from left to right, it has to be negative.
If it is 2$ and it was 75 percent off what is the original price?
Answer:
$8
Step-by-step explanation:
If it's 75% of that mean 2=25%
multiply it by 4 to get 8
2. please help and i’ll give you brainliest if u get it right
PLS HELP Complete the table so that the numbers in each column represent the coordinates of a point on the graph
Answer:
1 is 1/2 5 is 2 1/2 and 7 would be 3 1/2
Step-by-step explanation:
The admission fee at an amusement park is 1.5 dollars for children and 4 dollars for adults. On a certain
day, 380 people entered the park, and the admission fees collected totaled 1070 dollars. How many
children and how many adults were admitted?
Your answer is
number of children equals
number of adults equals
Please give me the correct answer.Only answer if you're very good at math.
The answer is by +9 which is the inverse operation of subtraction which is negative so we can isolate M!
Hope it helps!!
Answer:
Multiply both sides of the equation by 100
EASY EXTRA POINTS HELP ASAP
Answer:
(-3, -8)
Step-by-step explanation:
The point is in the third quadrant, so both coordinates must be negative. -3 represents the x coordinate and -8 represents the y coordinate.
The original price of an
SUV is $42,000. The
tax on the vehicle is
3%. What is the amount
of tax that needs to be
paid?

Answer:
$1260
Step-by-step explanation:
If tax is 3% just multiply 0.3 by 42000 to get 1260
42000*0.3=1260
II
Initial Knowledge Check
A circle has a diameter of 32 mm. What is its circumference?
Use 3.14 for it, and do not round your answer. Be sure to include the correct unit in your answer.
2
וחו
כוחו
mm
32 mm
х
5
Marking Brainlyest
Answer:
C=3.14*32=100.48mm
Step-by-step explanation:
Answer:
100.48
Step-by-step explanation:
[tex]C=\pi D[/tex]
So,
C=3.14*32=100.48
Please help me this is my final!!!
Answer:
final for what?
Step-by-step explanation:
Answer:
171
Step-by-step explanation:
Okay since the exterior angles of every polygon is always 360
and this polygon has 40 sides,
360/40=9
180-9=171
Hope This helps
(what grade is this?)
Last summer, 80 students signed up for a summer trip to Washington, D.C. This summer, 94 students signed up. To the nearest percent, what is the percent change in the number of students who signed up for the trip?
Answer:
18 %
Step-by-step explanation:
Last summer: 80 students
This summer: 94 students
94 - 80 = 14
14/80 x 100 = 17.5
rounded = 18%
A boat can travel 128.8 miles on 16.1 gallons of gasoline. How far can it travel on 9.4 gallons?
Can someone help please
the answer is x=47 hope this helps
*
Determine if the following is a right triangle. Explain how you know.
Opoints
6
8
9
Answer:
Step-by-step explanation:
Are the sides consistent with the Pythagorean Theorem?
6² + 8² ≟ 9²
36 + 64 ≠ 81, so it is not a right triangle.
31093÷14 with remainder
Answer:
31,093 / 14 = 2,220 R 13
Step-by-step explanation:
Answer:
2,220.9285714286 this is the answer of 31093÷14
if the length is 10 ft the width is 4 feet and the height is 8 feet what is the surface area
if you're solving for the surface area of a rectangular prism then it's 304 :D
Mrs. Moore used the spinner below for a game played during Bear Time.
What is the probability that the next student to spin the spinner will get
blue?
Red Orange
Blue
Red
Red
Blue
Green Orange
1/4
1/2
O 1/8
O 3/5
Answer:
1/8
Step-by-step explanation:
yay
Solve the system of equations 2 + 2y = -20 and x + 3y = -27 by combining the
equations.
Answer:
(6,-11)
Step-by-step explanation:
Which is and equation of the line with slope 0 and passing through the point at (-2,3)
Answer: y = 3
Step-by-step explanation:
Any horizontal line parallel to the x-axis has a zero slope. The horizontal line passing through (-2 ,3) has equation y = 3 as it passes through all points in the plane with a y-coordinate of 3, as may be seen in the graph
What is an equation of the line that passes through the point (6,1) and is
perpendicular to the line 2x + 3y 18?
Answer:
y - 1 = 3/2(x - 6)
Step-by-step explanation:
First, we need to find the slope of the given equation. Without a graph, the easiest way to do this is by isolating y.
2x + 3y = 18
3y = -2x + 18 (Subtract 2x from both sides)
y = -2/3x + 6 (Divide both sides by 3)
The slope is -2/3. Perpendicular lines have opposite reciprocal slopes, so a line perpendicular to this one would need to have a slope of 3/2. We're given a point for this line, so we can write the equation for it in point-slope form.
Point-Slope Form: [tex]y - y_{1}=m (x-x_{1})[/tex]
y - 1 = 3/2(x - 6)
If necessary, this can also be written in slope-intercept form by solving for y.
find the perimeter and area. round to the nearest whole number if needed.
A triangle has side lengths of 5a +3 inches and 2a +3 inches. If the perimeter of the triangle is 3a + 12 inches, which expression represents the length, in
inches, of the third side of the triangle?
Answer:
A. 2a+6
Step-by-step explanation:
I did the test and this is what I got.
Equivalent Ratio
9:36=
21:27=
48:72=
60:45=
10:70=
9514 1404 393
Answer:
1:47:92:34:31:7Step-by-step explanation:
Reduced ratios are found by removing (dividing out) the greatest common factor (GCF). For several of these, that factor is the smallest number or the difference between the numbers. Knowledge of multiplication tables is helpful.
9 : 36 = 1 : 4 . . . . common factor of 9
21 : 27 = 7 : 9 . . . . common factor of 3
48 : 72 = 2 : 3 . . . . common factor of 24
60 : 45 = 4 : 3 . . . . common factor of 15
10 : 70 = 1 : 7 . . . . common factor of 10
_____
Comment on GCF
The greatest common factor can be found from your knowledge of multiplication tables and/or divisibility rules. It can also be found using Euclid's algorithm. For that, you ...
Divide the larger number by the smaller and keep the remainder.
If the remainder is 0, the smaller is the GCF.
If the remainder is not zero, replace the larger number with the remainder and repeat from the first step.
Example:
27/21 = 1 r 6
21/6 = 3 r 3
6/3 = 2 r 0 . . . . 3 is the GCF of 21 and 27
On a recent day,8euros were worth $11 and 32 euros were worth $44 .Enter an equation of the form Y = KX To show the relationship between the number of euros and value in dollars.let y be the value in dollars and x be the numbers of euros. The equation is y=? NEED HELP!!!! Hey
Answer:
1.3
Step-by-step explanation:
Question: On a recent day,8 euros were worth $11 and 32 euros were worth $44 .Enter an equation of the form Y = KX To show the relationship between the number of euros and value in dollars.let y be the value in dollars and x be the numbers of euros.
Notes:
8 euro= $1132 euro= $44Need: Enter an equation of the form Y = KX To show the relationship between the number of euros and value in dollars.let y be the value in dollars and x be the numbers of euros.
In Y = K X
| |
| numbers of euros.
value in dollars
Our first number: 8 euro = $11
Y=11
X=8
Then Convert:
11=K8
11=K*8 ---> 8*K=11
8K=11
11/8= 1.3
K=1.3
From your not so smart brainly user
Billy had a pie that he baked.He cut it into 5/8 he then gave 2/8 away. How much of the pie did bill have left.
4-6-5 3-5-4 2-8-?
Ok, can somebody please help me.
You need to find ?. This is not math this is brain game and i can't solve it!!!!
please help
Answer:
345678
Step-by-step explanation:
a scientist produces zinc iodine. This is the method used:
1.weight 0.500 g of iodine 2.dissolve the iodine in ethanol
3.add the excess of zinc
4. stir the mixture until there's no further change
5. filter the excess zinc
6. evaporate off the ethanol
explain why the scientist adds excess zinc rather then excess iodine
HELPPPPPPPP PLEASEEEEEEE
Answer:
Angle 8 and angle 16.
Step-by-step explanation:
Number 4 because they are in the same spot. Learn geometry.