Answer:
Step-by-step explanation:
Let x be the total number of medals won by the Russians.
The way to do this is to add the ratios together
1 + 8 + 5 = 14
(5/14) x = 25
Multiply by 14
5*x = 25 * 14
5x = 350
divide by 5
70
8/14 = x / 70
14x = 8 * 70
14x = 560
x = 560 / 14
x = 40
The USA won 40 medals.
1/14 = x / 70
14x = 70
x = 5
Canada Won 5 medals.
Check
Russia Won 25 medals
Canada Won 5 medals
USA Won 40 medals
Total 70
PLEASE HELP ANYONE.....
John needs 48 stamps to complete his stamp collection. He has 30 stamps so far. What equation could you use to solve the number of stamps John needs?
A. 48 + 30 = s
B.30 + s = 48
C.30 - s = 48
D.48-s = 20
Answer:
the awnser should have is. b
If j // l, m<1 = 135, m<2 = 55, and m<3 = 45, list all other parallel lines. Justify your answers. Show work if any.
Answer:
Step-by-step explanation:
The supplement to ∠1 = 180°-135° = 45° = ∠3, so m is parallel to j and l.
∠2 ≠ 45° and ∠2 ≠ 135°, so k is not parallel to j, l, or m.
Will give, Branliest.
Answer:
24
Step-by-step explanation:
x * 5 - 17 = 103
x * 5 = 120
x = 24
Answer:
s=24
103+17=120
120÷5=24
making the answer 24
Please mark brainliest
Which graph represents the function f(x)=-3^x+1+2
Answer:
You did not provide an image for the graph, but the graph that would represent your function would look like this:
Answer:
it should be letter A
Step-by-step explanation:
Question 10 (Worth 5 points)
(01.01 LC)Look at the following numbers:
−4, −5, 0, 5
Which pair of numbers has a sum of zero?
5, −5
−5, 0
−4, 5
−4, 0
Which is a reasonable domain for the function f(x)=10x+8
Answer:
(-∞,∞)
Step-by-step explanation:
The domain is all possible x values of the function
There are no constraints or holes for this and therefore the domain is all real numbers
A function is a relationship between inputs where each input is related to exactly one output.
x values can be ........-5,-4,-3,-2,-1, 0, 1, 2, 3, 4, 5, 6,.........
The reasonable domain for the function f(x) = 10x + 8 is (-∞, ∞).
What is a function?A function is a relationship between inputs where each input is related to exactly one output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
f(x) = 10x + 8
We can have any real values of x.
f(-2) = -20 + 8 = -12
f(-1) = -10 + 8 = -2
f(1) = 10 + 8 = 18
f(2) = 20 + 8 = 28
f(3) = 30 + 8 = 28
.
.
.
x values can be ........-5,-4,-3,-2,-1, 0, 1, 2, 3, 4, 5, 6,.........
So,
The domain of the function f(x) = 10x + 8 is -∞ to ∞.
We can write as an interval as,
(-∞, ∞).
Thus,
The reasonable domain for the function f(x) = 10x + 8 is (-∞, ∞).
Learn more about functions here:
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A cash register contains only five dollar and fifty dollar bills. It contains five times as many five dollar bills as fifty dollar bills and the tital amount of money in the cash register is $2925. How many fifty dollar bills are in the cash register?
An account earns simple interest.
$2000 at 3.5% for 4 years
a. Find the interest earned.
$
b. Find the balance of the account.
Answer:
2280
Step-by-step explanation:
PLEASE LOOK AT ATTACHMENT-25 POINTS
Answer:
Step-by-step explanation: 10/2 = 5
20^2= x^2 + 5^2
400=x^2+25
x^2=375
x= 19.4
Answer:
h = 19.36 cm
Step-by-step explanation:
using Pythagorean theorem
20^2-5^2 = h^2
h^2 = 375
h = 19.36 cm
I’m struggling with this could you help me pls
Step-by-step explanation:
a) x=0, y=6
x=1, y=4
x=2 , y=2
x=3, y=0
x=4, y= -2
y= 6-2x
b) look at the attachment.
c)
6-2x=3
-2x=-3
x=3/2
Solve this problem, please!
Answer:
B
Step-by-step explanation:
Identify the independent variable and the dependent variable.
The years, y, a tree grows and the rings, r, in the tree trunk
the number of
The independent variable is
The dependent variable is
the number of
Answer:
independent is r and dependent is y
Step-by-step explanation:
An independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure.
a tree grows a ring for each year, therefore, to determine a trees age, you need to count the rings. the rings "r" dictate the age or years "y"
pls i will give brainliest
solve the equation: 3x^3-x^2=x^2
Answer:
x = 0 , 2/3
Step-by-step explanation:
3x^3-x^2=x^2
3x^3-2x^2=0
x^2(3x-2)=0
Now split into two equations:
1)
x^2=0
x=0
2)
3x-2=0
3x=2
x=2/3
If the area of a square with side x is equal to the area of a triangle with base x, then find the altitude of the triangle.
Answer:
[tex]h= 2x[/tex]
Step-by-step explanation:
Given
Square
[tex]Side = x[/tex]
Triangle
[tex]Base = x[/tex]
[tex]Altitude = h[/tex]
Required
Find h, if both shapes have the same area
The area of the square is:
[tex]Area = x * x[/tex]
[tex]Area = x^2[/tex]
The area of the triangle is:
[tex]Area = \frac{1}{2} * Base*Height[/tex]
[tex]Area = \frac{1}{2} * x*h[/tex]
Equate both areas
[tex]x^2 = \frac{1}{2} * x*h[/tex]
Divide both sides by x
[tex]x = \frac{1}{2} *h[/tex]
Multiply both sides by 2
[tex]2*x = \frac{1}{2} *h*2[/tex]
[tex]2x = h[/tex]
[tex]h= 2x[/tex]
A poster has a rectangular printed area 100 cm by 140 cm and a blank strip of uniform width around the edges. The perimeter of the poster is 1 2 3 times the perimeter of the printed area. What is the width of the blank strip
Answer:
90 cm
Step-by-step explanation:
Given that :
Perimeter of a rectangle = 2(Length + Width)
Perimeter of print area = 2(100 + 140) = 480cm
Perimeter of entire poster :
Let uniform width of blank strip = x
x on each of the 4 sides side ;
2(2x + 100 + 2x + 140)
2(4x + 240)
8x + 480
Perimeter of poster = 1 2/3 perimeter of print area
8x + 480 = 5/2(480)
8x + 480 = 1200
8x = 1200 - 480
8x = 720
x =. 720 / 8
x = 90 cm
Solve the system by substitution.
y = 10x
Y = -3x + 39
Answer:
x=3
Step-by-step explanation:
y=10x
y=-3x + 39
10x = -3x + 39
+3x (to both sides)
13x = 39
Divide by 13
x=3
Brent paid for six avocados with a $20 bill he received $10.40 in change construct and solve the equation can be used to find the price of each avocado
A negative (-) divided by a negative (-) equals a_______.
Answer:
Negative number divided by a negative number equals a positive number. The rule never changes.
Have a good rest of your life
A quantity b varies jointly with c and d and inversely with f. When c is 4, d is 9, and f is 6, b is 18. What is the constant of variation?
Answer:
k = 3
Step-by-step explanation:
Given that b varies jointly with c and d and inversely with f then the equation relating them is
b = [tex]\frac{kcd}{f}[/tex] ← k is the constant of variation
To find k use the condition c = 4, d = 9, f = 6 , b = 18, then
18 = [tex]\frac{k(4)(9)}{6}[/tex] = [tex]\frac{36k}{6}[/tex] = 6k ( divide both sides by 6 )
3 = k
Answer:
C. 3
Step-by-step explanation:
edge 2021
Kate reads 154 books in 11 months. How many books per month did she
read?
x - 2y = 8
3x = 19 + 4y
how to answer this through elimination or substitution method?
Answer:
The solution of the given equations
x = 3 and y =-2.5
Step-by-step explanation:
Step(i):-
x - 2y = 8 ..(i)
3x = 19 +4y ..(ii)
By using substitution method
substituting x = 2y +8 in equation (ii)
⇒ 3( 2y +8) = 19 +4y
⇒ 6y +24 = 19 +4y
⇒ 6 y - 4y = 19 - 24
⇒ 2 y = -5
[tex]y = \frac{-5}{2} = -2.5[/tex]
Step(ii):-
Substitute 'y' = -2.5 in equation (i) , we get
x - 2y = 8
⇒ x - 2( [tex]\frac{-5}{2}[/tex]) =8
⇒ x = 8 -5
x = 3
Final answer:-
The solution of the given equations
x = 3 and y =-2.5
find volume for brainlist
Answer:
D) V = 192 cm³
Step-by-step explanation:
V = [tex]\frac{lwh}{3}[/tex]
V = [tex]\frac{(8)(8)(9)}{3}[/tex] = [tex]\frac{576}{3}[/tex]
V = 192 cm³
Pleaseeee helppp answer correctly !!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!
Answer:
45º
Step-by-step explanation:
diagonals bisect the corners of a square
the angle measure of the corners of a square is 90º
since the diagonal bisects the corners: 90÷2 = 45º
I need help with number 9
Answer:
D
Step-by-step explanation:
We can safely assume we are dealing with an arithmetic scale because the type of scale isn't mentioned anywhere. The more right a point is on the scale, the higher its value is. We are given two points of the scale: 3 and 4. Because the scale is arithmetic, we know that 3.8 must lie on 4/5s of the length between 3 and 4 to the right of 3, which is exactly where point D is.
she has 7 large dogs and 7 small dogs. please help
Answer:
21 small dogs, 42 total dogs
Step-by-step explanation:
7×3=21
7+7=14
14×3=42
Find the error in the equation: please show work:
-3x^2(4x^2-5x+7)=-12x^4-15x^3+21x^2
Answer:
The middle term is negative but should be positive
Step-by-step explanation:
Let's walk through doing it:
[tex]-3x^2(4x^2 - 5x + 7)\\= -12x^4 + 15x^6 - 21x^2[/tex]
How many 1/2 cup servings are in 4 cups of ice cream?
Answer:
8 1/2 cup servings
Step-by-step explanation:
Hello!
Well to solve this we have to take the total amount of cups of ice cream and divide it amongst the servings.
So :
Total = 4 cups
Serving = 1/2 cup
What we can do since its such a lower number is count it out by increments of 1/2.
Like so :
1/2 1 1 1/2 2 2 1/2 3 3 1/2 4So, in total, there would be 8 servings of half a cup of ice cream in 4 cups.
I hope this helps!
If you have any questions or concerns feel free to message me or comment! :)
The number of 1/2 cup servings are in 4 cups of ice cream are 8.
What is Division?A division is a process of splitting a specific amount into equal parts.
We need to find the number of 1/2 cup servings are in 4 cups of ice cream
A half cup serving is equal to 4 fluid ounces.
Therefore, 4 cups of ice cream is equal to 8 half-cup servings,
since 4 cups is equal to 32 fluid ounces and 32 divided by 4 equals 8.
4/(1/2)
4×2
8 cups
Hence, the number of 1/2 cup servings are in 4 cups of ice cream are 8.
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PLEASE HELP PLEASEEEEE
Answer:
Answer:
5.46π cm³
Step-by-step explanation:
Volume of sphere= 4/3πr³
= 4/3×π×(1.6)³ cm³
=5.46π cm³
hope this helped you!
Giving brainliest to correct answers!
97 oz = ? lb ? oz
Which is larger, 10 tons or 22,000 pounds?
Which is larger, 7 kilograms or 7,000 grams?
Answer:
1. 5.61 lb 2. 22,000 pounds 3. they are the same
Step-by-step explanation:
16 oz in a lb. 16 x 5 is 90. extra 7 is approx 0.61 of a pound. 2000 lb in a ton. 2000 x 2 = 20000 extra 2000. 22000 is bigger. 1000 grams in a kilo. 1000 x 7 = 7000. they are the same
Find the value of x.
Answer:
x = 3.5
Step-by-step explanation:
[tex]\frac{4}{7}[/tex] = [tex]\frac{2}{x}[/tex]
4x = 14
x = 3.5