Answer:
95
Step-by-step explanation:
Let 2x be how many red/green marbles there are,
let 5x be how many blue marbles there are, and
let 7x be how many white marbles there are.
2x + 2x + 5x + 7x = 304
16x = 304
x = 19
As 5x is defined as how many blue marbles there are, we could just plug x for 19:
5*19 = 95
I hope this helped, and if it did please consider giving me brainliest :)
Answer:
95
Step-by-step explanation:
Let r, g, b, w be the number of red, green, blue, and white marbles, respectively. Since r : g : b : w = 2 : 2 : 5 : 7, there is some value of x for which r = 2 x, g = 2x, b = 5x, and w = 7x. Then, we have
304 = r + g + b + w
= (2x) + (2x) + (5x) + (7x)
= 16x
Dividing both sides of 16x = 304 by 16 gives x=19. This gives us r = 38, g = 38, b = 95, w = 133, so I have 95 blue marbles.
which development would most likely cause the supply of a product to decrease?
a. government regulations increase the cost of making the product
b. new technology allows the product to be made more quickly
c. more workers receive the education needed to create the product
d. businesses expect the product to start selling at a higher price
- apex ( personal finance/business)
Answer:
The anwser is A.Government regulations increase the cost of making the product
Step-by-step explanation:
9g + 14g + 4 = –19
plz help
Answer:
g=-1
Step-by-step explanation
Answer:
g=-1
HAVE A nice day
What is LCM of 4a and
10a
Please explain I don’t understand
Answer:
it is 20a
Step-by-step explanation:LCM means least common multiple.so the least common multiple of 4a and 10a is 20a
.hope this helps!
Olaf buys 4 cans of soup at the store for a total of $5.00. Which equation represents the cost, y, in dollars, of buying x cans of soup, given that the cost is proportional to the number of cans of soup?
Answer: x=1.25y
Step-by-step explanation:
each can is 1.25 and i’m pretty sure the question is just asking for the unit rate in a equation
Does anyone understand this? If you do can you please instruct me on how to do it or solve it?
Answer:
22 rides happened in the hour.
Step-by-step explanation:
The way to solve this if by first dividing the 650 by the 30 then since the answer will be 21.6 that is basically like having 21 full rides then having one more ride a little over half full.
An account is opened with an initial deposit of $100 and earns 3.0% interest compounded monthly.
What will the account be worth in 25 years?
Round your answer to the nearest cent.
Do NOT round until you have calculated the final answer.
Determine the solution.
2x+y=4
4x-3y=7
Answer:
The answer is: (x , y) = (19/10 , 1/5)
Step-by-step explanation:
Solve the equation for y-
y = 4 - 2x
4x - 3y = 7
Substitute the given value of y into the equation-
4 x - 3 ( 4 - 2x ) = 7
Solve the equation for x-
x = 19/10
Substitute the given value of x into the equation y = 4 - 2x-
y= 4 - 2 * 19/10
Solve the equation for y-
y = 1/5
The possible solution of the system is the ordered pair ( x , y )-
( x , y ) = ( 19/10 , 1/5)
Check if the given ordered pair is the solution of the system of equations-
{2 * 19/10 + 1/5 =4
4 * 19/10 - 3*1/5 =7}
Simplify the equalities-
4 = 4
7 = 7
Since all equalities are proven true the ordered pair is the solution of the system-
( x , y) = (19/10, 1/5)
FINALLY haha the solution is: ( x , y ) = (19/10 , 1/5)
Hope this helps you!! :) <333
what is y when the equation is x^2 - 3xy -4y^2 =0
Answer:
y = 1/8 (5 sqrt(x^2) - 3 x) or y = 1/8 (-3 x - 5 sqrt(x^2))
Step-by-step explanation:
Solve for y:
-4 y^2 - 3 x y + x^2 = 0
Hint: | Multiply both sides by a term to make the coefficient of y^2 positive.
Multiply both sides by -1:
4 y^2 + 3 x y - x^2 = 0
Hint: | Using the quadratic formula, solve for y.
y = (-3 x ± 5 sqrt(x^2))/8:
Answer: y = 1/8 (5 sqrt(x^2) - 3 x) or y = 1/8 (-3 x - 5 sqrt(x^2))
Match each circular flower bed on the left to its circumference and its area on the right. Some answer options on the right will not be used.
Answer:
Bed A --- Third Option
Bed B --- Fifth Option
Step-by-step explanation:
Flower Bed A)
The formula for circumference is:
[tex]C=2\pi r[/tex]
The diameter of A is 10 feet. So, its radius is 5 feet.
Substitute 5 for r. So, the circumference of Bed A is:
[tex]C=2\pi (5)=10\pi\text{ feet}[/tex]
The formula for the area of a circle is:
[tex]A=\pi r^2[/tex]
Substitute 5 for r:
[tex]A=\pi (5)^2[/tex]
Square and simplify:
[tex]A=25\pi \text{ square feet}[/tex]
So, the circumference of Bed A is 10π feet and its area is 25π square feet.
Therefore, match Bed A to the third option.
Flower Bed B)
The radius of Bed B is 6 feet. Again, we can use the circumference and area formulas. Substitute 6 for r for circumference:
[tex]C=2\pi (6)[/tex]
Multiply:
[tex]C=12\pi\text{ feet}[/tex]
Substitute 6 for r for the area formula:
[tex]A=\pi(6)^2[/tex]
Square and simplify:
[tex]A=36\pi\text{ square feet}[/tex]
So, Bed B has a 12π feet circumference and a 36π square feet area.
Therefore, match Bed B to the fifth option.
And we're done!
simplify: 3x+16-(-4x)+7
Answer:
7x+23 would be the answer
PLEASE HELP ME!!
Does the following depict a translation, reflection, or rotation?
Evaluate f(t)=-2t2+ 1 for f(-3)
Answer:
f(-3)=-17
Step-by-step explanation:
Substitue -3 for t
-2(-3)^2 + 1
Simplify
-2(9) + 1
-18 + 1
Answer: -17
A function is defined as a relation between a set of inputs having one output each.
The value of the function f(t) = -2t² + 1 at t = -3 is -17.
The domain of the function is -17.
The range of the function is -3.
What is a function?A function is defined as a relation between a set of inputs having one output each.
f(x) = x + 2
At x = 2,
f(2) = 2 + 2 = 4
Domain = 2
Range = 4
We have,
f(t) = -2t² + 1
We need to find for t = -3.
f (-3) = -2 ( -3 )² + 1
[ -3 x -3 = 9 ]
f (-3) = -2 x 9 + 1 = -18 + 1 = -17
Thus the value of the function f(t) = -2t² + 1 at t = -3 is -17.
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there are 15 students on the debate team/ the team advisor randomly chooses 4 students to debate in the next competition. what is the probability that the team includes joseph, malena, carlos, and abby
Answer:he team advisor randomly chooses 4 students to debate in the next competition. How many different ways can a team that includes Joseph, Malena, Carlos, and Abby be chosen? ... If two angles are congruent, then they are vertical angles.
Step-by-step explanation:
A box of cereal states that there are 84 cal in a 3/4 cup serving what is the unit rate for calories per cup how many calories are there in 2 cups of cereal
Answer:
2 cups of cereal, would be 224 calories.
Step-by-step explanation:
If one cup is 112 calories, all you have to do is multiply it by 2. Which gives you the answer of 224.
Answer:
unit rate - 112
2 cups - 224
Step-by-step explanation:
I tried my best to figure this out, i hope its correct !!
What is the value of k?
Answer:
10
Step-by-step explanation:
(4k+5) + (6k+10) = 115
10k+15=115
10k=100
k=10
Answer:
Step-by-step explanation:
(4k+5) + (6k+10) = 115
10k + 15 = 115
10k = 100
k = 10
note: the measure of an ext. angle of a triangle is equal to the sum of the two non-adjacent interior angles.
Suppose Matthew Whitaker performs on a rectangular stage with an area of 1815 square feet. If the length of the stage is 5x and the width of the stage is 3x, what is the value of x?
x=121
3×5=15
1815÷15=121
x=121
Answer:
The correct answer is 11.
Step-by-step explanation:
55 x 33 = 1815
You are buying packages of beads to make bracelets. Each package costs $3 plus 7% tax. You have a gift card for $15, and you plan to use only the gift card to pay for the beads. Which function c(p) represents the total cost, where p represents the number of packages of beads you purchase? What is a reasonable domain?
A. c(p) = 3.21p − 15; {0, 1, 2, 3, 4}
B. c(p) = 3.21p; all nonnegative integers
C. c(p) = 0.07(3p − 15); all nonnegative integers
D. c(p) = 1.07(3p); all nonnegative integers
Answer:
A
Step-by-step explanation:
You must multiply the number your buying by the price then you need to multiply by 1.07 because you need 7% or .07 to get the tax but you want to add that to the old number so you need a 1 in front so the answer is c(p) = 1.07(3p) however you still need the $15 gift card so instead you add the 7% into the three dollars you are multiplying by the number then subtract the 15 dollars because you aren't really paying. The reasonable domain is 0 1 2 3 4 because the number 5 would be over the 15 dollar limit.
Frank believes his bedroom wall measures 12 feet long.
He has a ruler that is 1? feet long.
He uses this ruler to measure his bedroom wall.
Which equation can be used to solve for T,
the number of times he will have to use the ruler to check the length of his bedroom wall?
A. 1? = 12T
B. 1? T = 12
C. 1? + T = 12
D. T – 1? = 12
Answer:
A
Step-by-step explanation:
Answer:
B. 1? T = 12
Step-by-step explanation:
Since the bedroom measures 12 feet long, the answer or the product should be 12 (12 only)
He uses “1?” to measure the bedroom, and we need to know HOW MUCH TIMES he uses it.
So, 1? T will be the equation since we need to know how much times he uses the ruler.
find the slope of the line
Answer:
1/2
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
First off the slope is negative and it decreases by one unit each time.
Which set below is the domain of {(2, -3), (-1,0), (0, 4), (-1, 5), (4, -2)}?
A. {-3,0,4,5,-2} B.{2, -1, 4} C.{-3, 4, 5, -2} D.{2, -1, 0, 4}
I don't need a fast answer, I need a thorough explanation, I am trying to advance in Math and I am learning on my own. I want to learn how to do this correctly. Thank you in advance, I Promise I will give brainliest if I am satisfied! (100 points just so you see you are loved (: )
Answer:
D
Step-by-step explanation:
We have the set:
[tex]\{(2, -3), (-1,0), (0, 4), (-1, 5), (4, -2)\}[/tex]
Remember that the domain for a set of values is simply the input values.
In other words, our domain will be all of our x-coordinates.
We can see that our x-coordinates are: 2, -1, 0, -1, and 4.
So, our domain is:
[tex]\{2, -1, 0, 4\}[/tex]
Note that we only write need to write the -1 once.
So, our answer is D.
And we're done!
Answer:
D
Step-by-step explanation:
Evaluate a+4 when a=7 but how do you do it doe?
Answer:
11
Step-by-step explanation:
if a = 7
7 +4 = 11
or
a + 4 = 11
Hope this helps! Please mark Brainliest!
Order the numbers from least to greatest, 19/2, 9.4, 80
Answer:
9.4, 19/2, 80
Step-by-step explanation:
Convert these please
Answer:
22.18mL147.42kg---637.14 lbs15.22mL--104 oz.12 g45.44 lbs3.59 pt43,000 mg105 tsp2,271.25 mL18tsp4 pt244.71 lbs219.99 kgs3.79 L3.96 g2,608.16 g145.4 tbsp99.22 g4.38 g10.57 pts135.26 oz1.73 LNatalie buys 3 harmonicas. Each harmonica costs $2.85. How much does Natalie spend?
Answer:
$8.55
Step-by-step explanation:
2.85*3 or 2.85+2.85+2.85
What is the difference
between an ordered
pair and coordinates?
Answer:A coordinate system is a two-dimensional number line
Step-by-step explanation:
A coordinate system is a two-dimensional number line, for example, two perpendicular number lines or axes. An ordered pair contains the coordinates of one point in the coordinate system. A point is named by its ordered pair of the form of (x,y
The difference between an ordered pair and coordinates will be;
''Coordinates are used in geometry, and when there are two coordinates, they are ordered pairs when both component are of the same type.''
What is Coordinates?
A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.
Given that;
There are an ordered pair and coordinates.
Now,
The difference between an ordered pair and coordinates will be;
''Coordinates are used in geometry, and when there are two coordinates, they are ordered pairs when both component are of the same type.''
And, An ordered pair contains the coordinates of one point in the coordinate system. A point is named by its ordered pair of the form of
(a, b) and a coordinate system is a two-dimensional number line.
Thus, The difference between an ordered pair and coordinates will be;
''Coordinates are used in geometry, and when there are two coordinates, they are ordered pairs when both component are of the same type.''
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In right triangle ABC, angle A= 90 degree, and AB = BC ,Find angle B, angle C
Answer:
b=45 c=45
Step-by-step explanation:
6. If RT = 4x, find the value of x and RS. x= RS = S RT = *
Answer: 4
4x = 4
S RT = 4
Answer = 4
i am not so sure.
Giving brainlist SO PLZ HELP
Select the situation below that models the following equation: -3(8) = -24.
A. A diver who was in the water wanted to see a school of colorful fish below. She dove at a depth of three feet per second. If she started diving at sea level, what is her position after eight seconds?
B. The temperature outside dropped a total of three degrees in eight hours. What was the temperature after those eight hours?
C. At the football game, Tyrice gained eight yards on one play and then lost three yards on the next play. How many total yards did he gain or lose over those two plays?
D. Gunner wants to see a movie that costs $8.00. He sees the movie with three of his friends. How many times did he see the movie?
Answer:
a
Step-by-step explanation:
-3 feet every second x 8 seconds
(IF YOU GIVE ME THE CORRECT ANSWER YOU GET BRANIEST) as part of a summer job, you stack crates. the crates have the same length and width but have heights of 1 or 2 feet. using a forklift, you can stack the crates 8 feet high. if you stacked 3 of the 2-foot crates how many of the 1-foot crates were in the stack? please help!!
Answer:
2 one foot crates were in the stack.
Step-by-step explanation:
if the forklift can hold 8 feet, and 3 two-feet ones were in the stack, that leaves 2 feet left, which allows for two 1-foot crates.
3x2=6
8-6=2
1x2=2
THIS IS MY LAST QUESTION SO CAN SOMEONE HELP
ME OUT
Answer:
Step-by-step explanation:
Hello, as this is reflected over the y=o line, it does not change the value for x so this is (3,2)
and the reflection over y=0 line changes the y in -y
thanks
