Answer: Adults = 58
Children = 42
Step-by-step explanation:
Let adults be denoted as a
Let Children be denoted as c
a + c = 100 ...... i
10a + 5c = 710 ...... ii
Multiply I by 5
Multiply ii by 1
5a + 5c = 500 ...... iii
10a + 5c = 710 ...... iv
Subtract iii from iv
5a = 210
a = 210/5
a = 42
Since a + c = 100
c = 100 - 42 = 58.
Adults = 58
Children = 42
A closed container has 3.06 ⋅ 1023 atoms of a gas. Each atom of the gas weighs 1.67 ⋅ 10–24 grams. Which of the following shows and explains the approximate total mass, in grams, of all the atoms of the gas in the container?
A. 0.47 grams, because (3.06 + 1.67) ⋅ (1023 ⋅ 10–24) = 4.73 ⋅ 10–1
B.0.51 grams, because (3.06 ⋅ 1.67) ⋅(1023 ⋅ 10–24) = 5.1102 ⋅ 10–1
C.4.73 grams, because (3.06 + 1.67) ⋅ (1023 ⋅ 10–24) = 4.73
D.5.11 grams, because (3.06 ⋅ 1.67) ⋅ (1023 ⋅ 10–24) = 5.1102
Answer:
Step-by-step explanation:
The correct answer is not the first answer, but the second answer in the middle. The third answer is the correct one because, since it has the correct exponent, that is, 0.51 grams.
_________________________________________________________
The approximate total mass is the number of atoms multiplied by the weight of an atom.
The approximate overall mass=3.06 10²³ atoms. (1.67 10⁻²⁴ grams/1 atom) which is equivalent to a mass of 0.51 grams. (1.67 10⁻²⁴ grams/1 atom) = 0.51102 g ≈ 0.51 g
Answer: B. 0.51 grams, because (3.06 ⋅ 1.67) ⋅(1023 ⋅ 10–24) = 5.1102 ⋅ 10–1
Answer:
long story short, the answer is B, 0.51 grams, because (3.06 ⋅ 1.67) ⋅(1023 ⋅ 10-24) = 5.1102 ⋅ 10-1
Step-by-step explanation:
:)
cual es el triple de 2+3/4×7
Answer:
87/4
Step-by-step explanation:
Answer:
your answer would be 7.25
Can someone please help me with this question!
Answer:
see explanation
Step-by-step explanation:
For the relationship to be a function then each value of x must map to exactly one unique value of y.
This is true for the points except Z andT, where
x → 3 (Z) and x → 5 (T)
This means the relation is not a function
(please explain)2. Write the fact families for the number 144,12, and 12.
Answer:
12 x 12 = 144
144 ÷ 12 = 12
Step-by-step explanation:
12 times 12 is 144 and the opposite of multiplication is division, the sum goes in front when you divide
:))))))))))))))))))))
Answer:
2) 2.75<d is the right answerStep-by-step explanation:
Here, the graph shows d is greater 2.75 but not equal to 2.75.
Let f(x) = x + 8 and g(x) = x2 - 6x - 7. Find f(g(2)).
1) -7
2) -3
3) 10
4) 33
Answer:
Step-by-step explanation:it 10 cause there is no negative in this equation it’s only subtraction and you subtract and you get the number 10 I got this right
help pleAse, this is extra credit and I do not want to fail this quarter
Answer:
Jamie will need 6 cups of milk.
Step-by-step explanation:
Given that:
A recipe calls for 2 cups of milk for each batch of pancakes.
1 batch of pancakes = 2 cups of milk
As Jamie is going to triple her recipe, thus the amount of milk in the recipe will also be tripled.
3 batches of pancakes = 2*3 cups of milk
3 batches = 6 cups of milk
Hence,
Jamie will need 6 cups of milk.
f(x) = -x^2 - 7x - 5
Find f(-5)
Plan A: Pay a $10.00 initiation fee per family, then pay a
discounted price of $1.75 per person to visit the
museum.
Plan B: Pay $2.75 per person per visit to the museum.
For each of the problems below, write an equation to
represent the situation and use the equation to solve the problem.
1. Jayden and his brother choose Plan A. During the summer, they spend a total of $38. How many times did the boys visit the museum?
2. Maria and her sister also like to visit the museum. They choose Plan B and spend a total
of $38.50. How many times did the girls visit the museum?
Step-by-step explanation:
y = the cost of all visits to the meuseum
x = the number of visits
Plan A calls for $1.75 per per, per visit. There are two people so each visit for will cost $3.50 for both. This is the Slope of your line. This plan also requires an initial cost of $10 for 0 visits, this is your y intercept, or b in the point Slope form.
Put all that together for y = 3.5x + 10
The 1st question requires finding the number of visits possible for $38.00, this is the y value at x visits.
Solve
38.00 = 3.5x + 10. Subtract 10 from both sides
28.00 = 3.5x. divide both sides by 3.5
x = 8 visits for each Hayden and his brother.
Plan B is just paying $2.75 per person, per visit. For both Maria and her sister the cost would be $5.50 per visit. This is the Slope.
There is no initial cost so the equation is
y = 5.50x
How many times can they go for $38.50
$38.50 = 5.50x solve for x
x = 7 visits for Maria and her sister. They should have gone with plan A. They would have been able to go to the museum one more time and each saved a quarter.
The ratio of Kirk's weight to his father's weight is 1 to 4. If Kirk's father weighs 168 pounds, how many pounds does Kirk weigh?
A
38
В.
42
47
D
52
Answer:
I got B, 42.
Step-by-step explanation: What I did was set up a proportion 1/4 = x/168, 1x168=168, 168/4=42.
file:///Users/shantanu/Desktop/Screen%20Shot%202021-01-29%20at%204.38.25%20PM
Please
Answer: I can’t open it sorry
Step-by-step explanation:
Answer:
Same here :(
P.S. : Can I get brainliest please?
I need this answer urgently .pls how make u brainliest
please find RQ i cant do it
Answer:
74
Step-by-step explanation:
NP is half of RQ (triangle midpoint theorem)
37 x 2=74
Solve this for me please
Answer:
y=-3.2x+6
Step-by-step explanation:
What is the maximum number of visits a member of the science museum can make for a total cost of $70?
Answer:
I need to know the cost of one visit
Can I pls get help on this question pls
Answer:
the answer is B.
Step-by-step explanation:
Solve 4(t+1)= 6(g-4)
Answer:
Step-by-step explanation:
Simplifying
4(t + 1) = 6(g + -4)
Reorder the terms:
4(1 + t) = 6(g + -4)
(1 * 4 + t * 4) = 6(g + -4)
(4 + 4t) = 6(g + -4)
Reorder the terms:
4 + 4t = 6(-4 + g)
4 + 4t = (-4 * 6 + g * 6)
4 + 4t = (-24 + 6g)
Solving
4 + 4t = -24 + 6g
Solving for variable 't'.
Move all terms containing t to the left, all other terms to the right.
Add '-4' to each side of the equation.
4 + -4 + 4t = -24 + -4 + 6g
Combine like terms: 4 + -4 = 0
0 + 4t = -24 + -4 + 6g
4t = -24 + -4 + 6g
Combine like terms: -24 + -4 = -28
4t = -28 + 6g
Divide each side by '4'.
t = -7 + 1.5g
Simplifying
t = -7 + 1.5g
In a grid of an auditorium, the vertices of a section of seats are A (40, 20), B (80, 20), C (100, 70),
and D (40, 70). The coordinates are measured in feet. Find the area of the section.
Answer:
2500
Step-by-step explanation:
there you go haha
What is the value of (33 - 2 × 7) + (5 × 3 - 22) ?
Answer:
12
Step-by-step explanation:
Keep in mind the rules of PEMDAS
P (parenthesis)
E (exponents)
M (multiply)
D (division)
A (addition)
S (subtraction)
Because parenthesis is the first operation in PEMDAS, you would start by calculating inside the parenthesis
We can start with the numbers inside the first parenthesis
(33 - 2 × 7)
Start by multiplying 2 and 7 because the M comes before the S
(33 - 2×7)= (33- 14)
Now subtract 14 from 33
(33-14) = 19
Step 2: Calculate inside the second parenthesis
(5 × 3 - 22)
Multiply first
(5 × 3 - 22)= (15 - 22)
Subtract!
(15 - 22)= -7
Now add the final number together
(why? There is an addition sign between the two parenthesis ordering us to add the final numbers together)
19 + (-7)
19-7
12
I hope this helps!!!
HELP I NEED HELP ASAP
Which equation represents the line that has a slope 5 and passes through the point (0,-2)
A. y = 5x - 2
B. y = x-3
C. y = 5x
D. y = -2x - 5
Answer:
A
Step-by-step explanation:
because the -2 is where the point is and the slope will start there so when you draw a line the line will pass by (0,-2)
Write the equation of a line in slope-intercept form that passes through (0, 7) and has a slope of -23.
Answer:
y = -23x + 7
Step-by-step explanation
We are using the equation y = mx + b.
The slope (m) is -23, so it would be y = -23 + b.
b is the y-intercept, and the ordered pair that gives us the y-intercept is (0,7).
Remember that the y-intercept is what the y-coordinate is equal to when the x-coordinate is 0.
John is buying a TV that costs $1250. He currently has $200 saved and is
saving an additional $50 per week. How many weeks will it take John to
have $1250 saved?
Your answer
Answer:
21 weeks or 5 months 1 week (7 days) to save 1250
Step-by-step explanation:
1250-200 (the amount he has)
1050 which is what he needs to save for
1050/50 = 21
Please help me i make my questions worth more, and give brainliest....
What is the solution for the following equation?
y=2x^2+10x+12
a. x=-2 and x= -3
b.x=2 and x=3
c.x=-2 and x=3
d.x=2 and x=3
Answer:
Option A
Step-by-step explanation:
2x^2+10x+12
Divide through by 2
x^2 +5x+6=0
x^2 +3x+2x+6
x(x+3)+2(x+3)=0
(x+2)(x+3)=o
x=-2 or x=-3
Answer:
A
Step-by-step explanation:
I believe its A cause i just did the same question
Please help 50 pts This is hard and I dont understand it I need answers quick. Thanks Have a good day
How do I solve this?
Answer: x = 15; y = 32; z = 2.5
see in the picture, u can see that this parallelogram has a right angle and two adjacent equal edges.
=> this parallelogram is a square
=> the diagonal lines of the parallelogram are perpendicular to each other
=> m∠1 = 90°
⇔ 3y - 6 = 90
⇔ 3y = 96
⇔ y = 32
because this is a square
=> 3x = 18z = 45°
=> x = 15
z = 2.5
Step-by-step explanation:
what is the answer to 2(-2x+2)+x+3=37
Answer:
the answer is x=−10
Step-by-step explanation:
hoped I helped:)
!!PLEAS HELP!! ASAP!! WILL GIVE U BRAINLYEST!!
Ana and her friends went to the carnival. While looking at the ferris wheel, they
estimated the distance from one side of the terris wheel to the other side to be about 40 feet.
If their estimation is correct, what would the distance around the ferris wheel be?
!!pleas help me :(!!
Answer:
answer is in the step by step explanation.
Step-by-step explanation:
40 feet is the diameter so 20 feet is radius. 2 times pi times 20 is 125.663706144. if pi is 3.14 then it's 125.6. I hope that answered your question.
ression x3 + 5x-2 when x = 2.
?
Answer:
16 or 14 depending on that 3 after the first x
Step-by-step explanation:
(2)^3+5(2)-2
8+10-2
18-12=16
OR
(2)3+5(2)-2
6+10-2
16-2=14
How to find the area of a circle with a diameter of 5cm
Answer:
19.63
Step-by-step explanation:
Find the radius
5 / 2 = 2.5
2.5² = 6.25
6.25 × π = 19.63
Which choice is correct?
Answer:
3rd one
Step-by-step explanation: