Answer:
first get the total ratio; 2 + 5 = 7
so the fraction of blue marbles is 5/7
then assume the number of total marbles to be k
then use the expression;
5/7*k = 65
7*5/7 * k = 65*7
5k =455
5/5k = 455/5
k = 91
then calculate the number if red marbles from;
x = 2/7*91
x = 26
Therefore there are 26 red marbles.
4/7 is multiplied by a fraction less than one. Complete the explanation to show how the product compares to the factors.
Answer:
That is true!
Step-by-step explanation:
Solve for x
I need help fast
Answer:
4x-1=1/2(10x-20)
8x-2=10x-20
-2x=-18
X=9
Nate scored a 990 on his first autempton
the SAT and a 1140 on his second attempt
Percent of change classify as a percent increase or decrease
Answer:
It was a percentage increase of 15.15%
Step-by-step explanation:
1140 is greater than 990, so it is an increase in scores
Percentage increase = (change in score / first score) x 100
change in score = second score - first score
1140 - 990 = 150
(150 / 990) x 100 = 15.15%
4) Ari can swim 2 laps per minute. Which equation represents the number of laps,
n, that Ari travels in m minutes?
a n = 2m
b. m = 2n
c. n = 2 +m
d. n = 2 divided by m
Explain what steps you take to find the greatest common factor of 24 and 32
Answer:
So first what I do is I list the factors of 24 and 32. So for 24, I would write 1, 2, 3, 4, 6, 8, 12, and 24. Then for 32, I would write 1, 2, 4, 8, 16, and 32. Finally, I would look through both lists and try to find the greatest number in common, which would be 8.
Step-by-step explanation:
Which set of ordered pairs demonstrates a function?
A
(-2,-4), (-1, -2), (1, 2), (2, 4)
B
(-2, 4), (1, 2), (1, -2), (2.-4)
C
(-2,4), (-1, 2). (-1, 2), (-2,-4)
D
(-2, 4). (-1, 2), (-1, -2), (-2,-4)
The set of ordered pairs from listed options demonstrating a function is given by: Option A: (-2,-4), (-1, -2), (1, 2), (2, 4)
Firstly, we need the definition a function; based on which we can distinguish the correct set of ordered pairs.
What is a function?If we have two sets A and B as:
[tex]A = \{a_1, a_2, ... \}\\B = \{b_1, b_2, ... \}[/tex]
Then, function [tex]f: A \rightarrow B[/tex] is a connection of elements of A to B such that one element of A is connected to only single element of B, and not many.
The connected pairs are then written as:
[tex]\{(a_i_1,b_j_1), (a_i_2, b_j_2), ... \}[/tex] under the function f.
Now, for the listed ordered pairs, checking if they're functions or not:
Case 1: (-2,-4), (-1, -2), (1, 2), (2, 4)Each single input is connected with single output. So it is demonstrating a function.
Case 2: (-2, 4), (1, 2), (1, -2), (2.-4)In this case, 1 is connected to 2, and -2 both. Thus, it's not representing a function.
Case 3: (-2,4), (-1, 2), (-1, 2), (-2,-4)-1 is only connected to 2, but that does't help as -2 is connected to -4 and 4 both. Thus, it doesn't represent a function.
Case 4: (-2, 4), (-1, 2), (-1, -2), (-2,-4)-2 is connected to 4 and -4, and -1 is connected to 4 and -4, so its not a function.
Thus, the set of ordered pairs from listed options demonstrating a function is given by: Option A: (-2,-4), (-1, -2), (1, 2), (2, 4)
Learn more about functions here:
https://brainly.com/question/13395697
Heera jogs 2 rounds of the park, whose length is 4.5 km and width is twice its length .Find the total distance covered by her .
Answer:
54 km
Step-by-step explanation:
The distance she covers would be equal to twice the perimeter of the park which is in the shape of a rectangle
perimeter of a rectangle = 2 x (length x width)
length = 4.5
width = 2 x 4.5 = 9
2 x (4.5 + 9) = 27km
In one walk, she covers a distance of 27km. In two walks, she covers a total distance of 27km x 2 = 54km
PLEASE HELP SOMEONE I WILL GIVE YOU BRAINLIEST!!!!
Answer:
help with what exactly
Step-by-step explanation:
Answer:
What’s the question tho?
Step-by-step explanation:
The results of a survey are shown. In the survey, 28 students said their favorite dessert is ice cream. How many students were surveyed? Ice Cream: 35% Pie: 15% Candy: 23% Cake: 27%
Answer:
80 students
Step-by-step explanation:
35% = 28 students (Ice cream)
1% = 28 ÷ 35
= 0.8
Therefore,
100% = 0.8 × 100
= 80 students
Answer:
80 student
Step-by-step explanation:
28÷35×100 = 80
Can u guys please answer this question. This is extremely urgent
The cross-sections of the solids are sectors. Find the surface area, rounding your answer to 1 decimal place.
Answer:
The total surface area of the figure is approximately 10.2 m²
Step-by-step explanation:
The dimensions of the solid are;
The shape of the solid = An half cylinder
The diameter of the cylinder, D = 1.6 m
The length of the cylinder, l = 2 m
The surface area of the curved part of the solid = π × D × l ÷ 2
Therefore;
The surface area of the curved part of the solid = π × (1.6 m) × 2 m/2 ≈ 5.03 m²
The area of the curved surface, V = 5.03 m²
The area of the rectangular top, A = 1.6 m × 2 m = 3.2 m²
The area surface of the semi-circular sides of the figure = 2 × π·D²/4 ÷ 2
Therefore;
The area surface of the semi-circular sides of the figure = 2 ×π × (1.6 m)²/4 ÷ 2 ≈ 2.01 m²
The total surface area of the figure, A = 5.03 m² + 3.2 m² + 2.01 m² = 10.24 m²
The total surface area of the figure ≈ 10.2 m² (rounding to 1 decimal place)
Jen measured the growth of a sunflower. In week one, it grew 2 1/2 inches. In week two, it grew 2 3/4 Inches. In week three, it grew 3 1/4 Inches. How much did the sunflower grow over all the three weeks?
Answer:
8 1/2 inches
Step-by-step explanation:
we add the fractions of growth over the 3 weeks
2 1/2 + 23/4 + 3 1/4 = 8 1/2
the difference between a number and 21
Answer:
n - 21
Step-by-step explanation:
"difference" implies subtraction here.
The difference between a number and 21 is n - 21.
3.14x(3x5)+34 hjghjhg
Answer:
81.1 is the answer ..,eksks
x/7=1/4
please help will give brainlest
Answer:
x=7/4
Step-by-step explanation:
cross multiply and divide both sides
Please answer I’ll make brainliest. I have other questions too that I’ll be posting shortly
Answer:
16 ft
Step-by-step explanation:
The equation is a^2+b^2=C^2
a= 30^2 = 900
b= we need to find
c= 34^2=1156
so the equation looks like this so far
900 + B^2 = 1156
we are going to subtract 900 so B^2 can be alone
1156 - 900 = 256
Now the equation looks like =
B^2 = 256
now we square root 256
which gives you 16
B = 16
I hope everyone who sees this has a wonderful day :)
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: That is a common saying used in the USA as well as many other places. People enjoy when people say this because it helps them feel good and be grateful!
Explanation:
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
$140 spent on a 90-minute taxi ride
20 points
3) Yolanda is building a patio in her backyard. She is interested in using
both bick and woof for the flooring of the patio. Below is the plan she has
created for the patio. All measurement are in feet. Select the expressions
that represent the area of the patio? (SOL 6.7, 6.13) *
Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!
tinyurl.com/wpazsebu
which pair of functions are inverse of eachother ?
Answer: a
Step-by-step explanation:
What is 300% of 15? Please show your work
Answer:
300/100*15=45 plz mark me branliest
Solve the simultaneous equation
x2+y2= 26
X - Y = 4
The diagram shows a solid metal cuboid.
The areas of three of the faces are marked on
the diagram.
The lengths, in cm, of the edges of the cuboid
are whole numbers.
The metal cuboid is melted and made into cubes.
Each of the cubes has sides of length 2.5 cm.
Work out the greatest number of these cubes that can be made.
You must show your working.
Answer:
6 cubes
Step-by-step explanation:
Considering the given cuboid, it can be deduced that;
length of the cuboid = 7 cm
width of the cuboid = 3 cm
height of the cuboid = 5 cm
Thus,
volume of the cuboid = length x width x height
= 7 x 3 x 5
= 105 cubic centimetres
The cubes has sides of length 2.5 cm.
volume of each cube = length x width x height
= 2.5 x 2.5 x 2.5
= 15.625 cubic centimetres
The greatest number of cubes that can be made = [tex]\frac{105}{15.625}[/tex]
= 6.72
The greatest number of cubes that can be made from the cuboid is 6.
Milan is riding on a bike course that is 60 mlles long. So far, he has ridden 24 miles of the course. What percentage of the course has Milan ridden so far?
Answer:
your answer to the question is 40%
The measures of one interior angle of a regular polygon is 140o. What is the name of the polygon?
Answer:
nonagon/enneagon
Step-by-step explanation:
Let n be the number of length of the polygon
(n-2)x180 = 140n
180n - 360 = 140n
n = 9
The name of the polygon is call nonagon/enneagon
what are the mean and medium to introduce peolpe
Timothy spent 1 hour 22 minutes less than Bill reading last week. Bill spent 47 minutes less than Pete. Pete spent 3 hours reading. How long did Timothy spend reading?
Answer: 51 minutes
Step-by-step explanation:
Firstly, Pete spent 3 hours reading. Bill spent 47 minutes less than Pete reading so Bill spent:
= 3 hours - 47 minutes
= 2 hours 13 minutes
If Bill spent 2 hours 13 minutes reading and Timothy spent 1 hour 22 minutes less than this, the amount of time that Timothy read for was:
= 2 hours 13 minutes - 1 hour 22 minutes
= 51 minutes
Perform the indicated operation. m/m+n + n/m+n
Answer:
(2mn+m+n)/2
Step-by-step explanation:
What is the measure of angle a
Answer:
77.79 degrees
Step-by-step explanation:
https://www.omnicalculator.com/math/triangle-angle
this is what I used to get it
The triangle below has side measurements of 24 17 and 9. Match the side length of the triangle to the appropriate side using what you know about triangle relationships.
Answer:
See attachment for triangle
Step-by-step explanation:
Given
[tex]Side\ 1 =24[/tex]
[tex]Side\ 2 =17[/tex]
[tex]Side\ 3 =9[/tex]
Required
Draw a triangle that represent the given sides
No template is given. So, I will draw the triangle from scratch
But first, we check if the given sides are valid for a triangle (using triangle inequality theorem).
This states that:
[tex]Side\ 1 + Side\ 2 > Side\ 3[/tex]
[tex]Side\ 3 + Side\ 2 > Side\ 1[/tex]
[tex]Side\ 1 + Side\ 3 > Side\ 2[/tex]
All three inequalities must be true.
Substitute values of each side in the three inequalities
[tex]24 + 17 > 9[/tex] --- True
[tex]9 + 17 > 24[/tex] --- True
[tex]24 + 9 > 17[/tex] --- True
Since the sides are valid, then the triangle can be drawn (See attachment for triangle)
Please help me with this and find x!! Thank you, only if you know!
Answer:
x = 9.8
Step-by-step explanation:
to find x, use pythagorean theorem
[tex]a^{2} = c^{2} - b^{2}[/tex]
[tex]a^{2} = 14^{2} - 10^{2}[/tex]
[tex]a^{2} = 196 - 100[/tex]
[tex]a^{2} = 96[/tex]
[tex]\sqrt{a^2} = \sqrt{96}[/tex]
[tex]a = 9.7979[/tex] ⇒ 9.8
Answer:
The value of x=4√6cm or √96cm
Step-by-step explanation:
According to Pythagoras theorem,
Hypotenuse²=Perpendicular²+Base²
H²=P²+B²
Hypotenuse given=14cm
Base=10cm
Perpendicular=x
14²=P²+10²
196=P²+100
196-100=P²
96=P²
√96=P
4√6cm=x