Answer:
D) 6(4 1/2 m + 2/3)=629Step-by-step explanation:
A display has 6 packs of marbles with a total mass of 629g. The packaging of each pack has a mass of 2/3 g and each marble has a mass of 4 1/2 g.
Which equation can we use to determine m, the number of marbles per pack?
A 6*4 1/2 m+ 2/3=629 B 6 m(4 1/2+ 2/3)=629 C 6 m+4 1/2+ 2/3=629 D 6(4 1/2 m + 2/3)=629================================
A total mass is the sum of 6 packs and each pack is:
m marbles + packaging = 4 1/2 m + 2/3We can put it as equation:
6(4 1/2m + 2/3) = 629Correct option is D
Answer:
D. 6(4 1/2 m + 2/3)=629
Step-by-step explanation:
I did it on khan academy so theres no way this is incorrect.
Colton works at an electronics store as a salesperson. Colton earns a 7% commission on the total dollar amount of all phone sales he makes, and earns a 3% commission on all computer sales. Colton had twice as much in phone sales as he had in computer sales and earned a total of $85 in commission. Write a system of equations that could be used to determine the dollar amount of phone sales Colton made and the dollar amount of computer sales he made. Define the variables that you use to write the system.
The equations that could be used to determine the dollar amount of phone sales will be:
0.07x + 0.03y = 85
y = 2x
How to illustrate the information?Let x represent the total dollar amount of the phone sales she makes.
Let y represent the total dollar amount of the computer sales she makes.
Colton earns a 10% commission on the total dollar amount of all phone sales she makes, and earns a 4% commission on all computer sales. If she earned a total of $162 in commission, it means that
0.07x + 0.03y = 85
She had twice as much in computer sales as she had in phone sales. This means that y = 2x.
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NEED HELP WITH THIS ONE PLEASE
Answer:
c
Step-by-step explanation:
Josiah and Kiri are each saving money.
I need help on this question Josiah starts with `\$100` in his savings account and adds `\$5` per week. Kiri starts with `\$40` in her savings account and adds `\$10` each week.
After `4` weeks, who has more money in their savings account?
Answer: first off the first is 240 2. is 320 in total so its the 2cnd one
Step-by-step explanation: ez math if you get wrong LOL R I P YOU
single fraction in its simplest form
Answer: [tex]\frac{5}{(x+1)(x+5)}[/tex]
Step-by-step explanation:
[tex]\frac{5}{x+5} - \frac{5x}{x^2+6x+5}[/tex]=
[tex]\frac{5}{x+5} - \frac{5x}{(x+1)(x+5)}[/tex]=
[tex]\frac{5(x+1)}{(x+1)(x+5)} - \frac{5x}{(x+1)(x+5)}[/tex]=
[tex]\frac{5(x+1)-5x}{(x+1)(x+5)}[/tex]=
[tex]\frac{5x+5-5x}{(x+1)(x+5)}[/tex]=[tex]\frac{5}{(x+1)(x+5)}[/tex]
When catering an event, Bennett's Barbeque charges a flat $200 setup fee plus $14 per person.
The cost of the annual picnic for Gambles Construction must be under their $3000 budget.
Write an inequality that determines the total number of people, "x," that can attend the picnic.
If needed, use > for "greater than"
If needed, use < for "less than"
Step-by-step explanation:
so, to translate the first 2 paragraphs into math notation :
200 + 14×x < 3000
that transforms then to
14x < 2800
and then
x < 2800/14 = 200
so, x < 200
the number of attending people must be under 200.
therefore up to 199 people can attend.
FYI : the request was that the costs must be under the $3000 budget. therefore, we used "<".
if we were allowed to actually reach (and empty) the full budget, then we would have used "<=" (less than our equal), and 200 people could attend.
What percent of 19 is 4.75?
Answer:
25%
Step-by-step explanation:
1. 4.75/19 = .25
2. .25 = 25%
What is the approximate area of the shaded sector in the circle shown below?
105°
18 cm
A. 594 cm2
B. 33.0 cm2
C
C. 16.5 cm2
D. 297 cm2

Answer:
297 cm^2
Step-by-step explanation:
297 centimeters squared
The requried area of the shaded sector is 296.73 cm², which is closest to option D: 297 cm².
What is an area of a sector of a circle?The area of a sector is the fractional part of the area of a full circle that is enclosed by the central angle of the sector. To find the area of a sector, we can use the formula:
Area of sector = (θ/360) x πr^2
Here,
To find the area of the shaded sector, we need to first find the area of the whole circle and then multiply it by the fraction of the circle that is shaded.
The area of a circle with a radius of 18 cm is given by A = πr², where r is the radius. So, the area of the whole circle is:
A = πr² = π(18 cm)² = 324π cm²
To find the fraction of the circle that is shaded, we need to find the central angle of the sector. The central angle of the sector is given as 105°. The fraction of the circle that is shaded is equal to the central angle of the sector divided by the total central angle of the circle (which is 360°):
Fraction of circle shaded = Central angle of sector / Total central angle of a circle
= 105° / 360°
= 7/24
Therefore, the area of the shaded sector is:
Area of shaded sector = Fraction of circle shaded x Area of the whole circle
= (7/24) x (324π cm²)
≈ 296.73 cm²
So, the approximate area of the shaded sector is 296.73 cm², which is closest to option D: 297 cm².
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Don’t judge
Heeeweeeeeeeeeeelllllllllllp
Jared wants to buy a young pig to raise for the country fair. The pig costs $75, and there is a $1.50 processing fee to pay with a check.
what is the total cost of buying the pig with a check?
Step-by-step explanation:
So the pig costs 75 and the fee is 1.50
what we need to do is add the decimal and whole number to get an answer
we know that $75 is written like this in decimal form 75.00 now let's add
+ 75.00
1.50
---------
76 .50
THE ANSWER IS $76.50
The contents of a cell in a spreadsheet are shown below. 7.688E + 7
What number do the contents of the cell represent?
A. 0.0000000769
B. 76,880,000
C. 768,800,000,000
D. 0.0000007688
The number do the contents of the cell which represent 7.688E + 7 is 76,880,000
What is scientific notation?A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10.
Given:
7.688E + 7
which also can be written as
=7.688 * 10^7
=7.688 * 10000000
=76,880,000
Hence, the number do the contents of the cell is 76,880,000
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Find a value for x that will make each of the following equations true. 2. x+8=21 b. 8-32=55 c. 3x=54 d. x/5=10
Answer:
Step-by-step explanation:
that’s hard
Mai runs 3 laps around the track in 4 minutes
How many minutes per lap is that?
7.) After 4 new students joined a class, the class had 32 students. Which equation can be used to find n, the number of students in the class before the 4 new students joined? n A 32 का B 0-4 = 32 C 4n = 32 Dn+4 = 32
help pls
Answer:
Uh I’m not sure about those answers sorry
Step-by-step explanation:
at sue birdwell intermediate school the ratio of boys to girls is 7 to 5. if there are 150 girls at school, how many boys are at the school
Answer:
210 boys
Step-by-step explanation:
the ratio is 7 boys to 5 girls. There are 150 girls at the school. Divide 150 by 5 to get your answer which is 30. We know that we have to divide because the ratio answer is a simplified version of 150, like if we were doing fractions. Then multiply 30 times 7 and you will get 210. So there are 210 boys at the school.
Find the circumference of the circle use 3.14 for
Pi Round to the nearest hundred put the answer in cm
Need ASAP if u don’t know the answer don’t answer
Answer:
47.1 cm
Step-by-step explanation:
The circumference of a circle is denoted by C = 2πr, where r is the radius.
Here, we see that the given radius is 7.5, so r = 7.5 cm. We also are given that we need to use the approximation 3.14 for π, so plug all these into the formula:
C = 2πr
C = 2 * 3.14 * 7.5 = 47.1
To round this to the nearest hundredth... well, there's no hundredth place, so we can leave this as is or just write 47.10 cm.
Thus, the circumference is 47.1 cm.
The midpoint of
¯¯¯¯¯¯
C
D
is
E
(
−
1
,
0
)
. One endpoint is
C
(
5
,
2
)
. What are the coordinates of the other endpoint?
The co-ordinates of D is if the midpoint E is at (-1,0 )which is calculated using the section formula.
In coordinate geometry, the Section formula is used to determine the internal or external ratio at which a line segment is divided by a point. It is used to determine a triangle's centroid, incenter, and excentre.
The midpoint of a line segment is known as the midpoint in geometry. It is the centroid of the segment and of the ends, and it is equally distant from both of them. It cuts the section in half.
The section formula is given by:
[tex]{\displaystyle P=\left({\frac {mx_{2}+nx_{1}}{m+n}},{\frac {my_{2}+ny_{1}}{m+n}}\right)}[/tex]
where (x₁ ,y₁) and (x₂ ,y₂) are the two endpoints of the line -segment.
The midpoint is calculated by:
[tex]{\displaystyle Q=\left({\dfrac {x_{1}+x_{2}}{2}},{\dfrac {y_{1}+y_{2}}{2}}\right)}[/tex]
where (x₁ ,y₁) and (x₂ ,y₂) are the two endpoints of the line -segment.
Now the given co-ordinates of the points are C(5, 2) and the midpoint is E(-1 , 0). Now to find the co-ordinates of D we have to use the midpoint formula.
Let the co-ordinate's of D be (a , b) then by using the above midpoint formula we get:
-1 = (5+a) ÷ 2
or, a = -2 -5
or, a = -7
again
0 = (2+b) ÷ 2
or, b = -2
Hence the co-ordinates of D is (-7 , -2)
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what is the value of x?
x + 4/9 = 3/4
a. 11/36
b. 1/3
c. 1 11/16
d. 1 7/16
Answer:
option a is correct
Step-by-step explanation:
please mark me brainliest and 5 star
Answer:
The answere is a 11/36
Step-by-step explanation:
Hope this help :)
Tristan took a taxi from his house to the airport. The taxi company charged a pick-up fee of $3.80 plus $4.25 per mile. The total fare was $46.30, not including the tip. How many miles was the taxi ride?
Answer: 10 miles
Step-by-step explanation:
46.30 = 4.25x + 3.80 - Subtract 3.80 from both sides
42.50 = 4.25x - Divide both sides by 4.25
10 = x
this is what the problem says
Assuming all parabolas are of the form y=ax^2+bx+c, drag and drop the graphs to match the appropriate a-value
9514 1404 393
Answer:
graphs left to right have a=1, a=0.25, a=-1
Step-by-step explanation:
A negative value of 'a' makes the parabola open downward, so the rightmost graph goes with a=-1.
A value of 'a' less than 1 flattens the graph, so the middle graph goes with a=0.25.
A value of 1 gives a standard open-upward parabola, corresponding to the leftmost graph.
Answer: it’s already in the correct order.
Step-by-step explanation:
Fredo pays 79.65 for twenty-seven 17 count boxes of granola bars. How much does 1 box of granola bars cost?
WILL MARK BRAINLIEST Answer question and give the answer as an improper fraction in the most simple form. Thank you!
Step-by-step explanation:
3 13
- ------ + ------ <-------- Fraction bar
8 6
1. Get both fractions to have the same denominator which is 24 because it is the Least Common Multiple (LCM) - 1st fraction multiply by 3 on numerator and denominator, 2nd fraction multiply by 4 on numerator and denominator.
9 52
- ------ + ----- <-------- Fraction bar
24 24
2. Subtract the two fractions - there is a negative number and positive number, so we need to subtract even though it is addition because they are different signs. The answer is positive because it is the bigger number.
43
= ------ <-------- Fraction bar
24
3. The answer is already simplified because there are no common factors for 43 and 24. So the final answer is ...
43
------ <-------- Fraction bar
24
Hope this helps :)
help pleaseeeeee
Let f(x) = x + 6x and g(x) = 5-x
Find (fg)(4).
Answer:7
Step-by-step explanation:
1st,
g(x) = 5-x
g(4) = 5-4 = 1
then
f(x) = x^2+6x
(fg)(4) = f(g(4)) = 1^2+6(1) = 1+6 = 7
you can ask questions for clarification
2. A car travels 385 miles in 2 hours (with a constant speed). How far can it travel in 5 hours (with the
same speed)?
Answer:
77 Miles Per Hour
Step-by-step explanation:
Its that
Answer:
962.5 miles
Step-by-step explanation:
385 / 2 = 192.5
this is the amount per hour
192.5 times 5 = 962.5
Bernice estimated that 69% of 242 is 168. Is her estimate reasonable?
No, because her calculation should be 60% of 250.
No, because her calculation should be 70% of 250.
Yes, because her calculation should be 60% of 240.
Yes, because her calculation should be 70% of 240.
Answer:
Yes, because her calculation should be 70% of 240.
Step-by-step explanation:
69% can be estimated to 70% and
242 can be rounded off to 240.
70% of 240 = 0.7 * 240
= 168
The class can contain at most 28 students.
Answer:
s < 28
Step-by-step explanation:
help please it’s due soon the options are
4/3
3/4
-3/4
-4/3
Answer:
4/3
Step-by-step explanation:
I used a slope calculator to solve
Evaluate:
10 x [(6 + 4) = 2]
Answer:
You have to pay close attention to the Order of Operations.
10(6+4)/2. Grouping symbols first.
6+4=10.
10(10)/2
10*10=100.
100/2.
50 is your answer
Step-by-step explanation:
Don't forget to rate me for this answer the Brainliest!
what is an opposite in math?
Answer: Numbers that are in opposite positions on the number line. Such as −6 and +6. Or −150 and +150. When we add opposite numbers we get 0.
Step-by-step explanation:
The store is selling lemons at $0.66 each. Each lemon yields about 2 tablespoons of juice. How much will it cost to buy enough lemons to make three 9-inch lemon pies,each requiring half a cup of lemon juice
Answer:
It will cost $7.92
Step-by-step explanation:
We will need to find out how many table spoons of lemon we will need first.
We need to make 3 pies requiring half a cup of lemon juice.
3 * 1/2 = 1.5 cups
We convert the cups to tablespoons
1.5 * 16 = 24 tablespoons
Then, since each lemon yields two tablespoons, we divide the tablespoons required by two. This is to find the number of lemons we need.
24/2 = 12
We multiply lemons by the price the store is selling them.
12 * $0.66 = $7.92
This is the price to buy enough lemons to make the 9-inch lemon pies.
is 67 prime or composite and explain
Answer:
67 is Prime.
Step-by-step explanation:
It is a prime number because it only had 2 factors. 1 and 67. No other numbers can be multiplied to get this number.