1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SOVA2 [1]
3 years ago
9

Ari and his 3 brothers want to take a school trip to Washington, D.C. They have $320 saved. Each of them will save $18 a week un

til they have at least $647 to pay for the trip. How much money will they save after 4 weeks? Will they have enough money to pay for the trip?
Mathematics
1 answer:
cupoosta [38]3 years ago
8 0

Answer:

$392.  No they don't have enough money to pay for the trip.

They need $255 more dollars, which would take 14 weeks and 2 days.

Step-by-step explanation:

18 x 4 = 72

320 + 72 = 392

647 - 392 = 255

255/18 = 14.2

You might be interested in
Solve for g. 10g -8 = 4g + 9g + 10
Whitepunk [10]

10g -8 = 4g + 9g + 10

combine like terms

10g -8 =13g +10

subtract 10g from each side

-8 = 3g +10

subtract 10 from each side

-18  = 3g

divide by 3

-6 =g

4 0
3 years ago
Read 2 more answers
What is the solution set to the following system?
elena-s [515]
The correct answer is C
3+ 0 is 3
3^2 + 0 is 9
3 0
3 years ago
Irrational number between 7.7 and 7.9
Alinara [238K]
Sqrt(62)
it's about 7,87
7 0
3 years ago
A box (with no top) is to be constructed from a piece of cardboard of sides a and b by cutting out squares of length h from the
Drupady [299]
<span>h = (19 - sqrt(97))/6, which is approximately 1.525190366 The volume of the box will be V = lwh And l will be a - 2h And w will be b - 2h So using the above, the volume of the box will be V = lwh V = (a - 2h)(b - 2h)h V = (11 - 2h)(8 - 2h)h V = (88 - 22h -16h + 4h^2)h V = (88 - 38h + 4h^2)h V = 88h - 38h^2 + 4h^3 Since you're looking for a maximum, that screams "First derivative" So let's calculate the first derivative of the function and solve for 0. V = 88h^1 - 38h^2 + 4h^3 V' = 1*88h^(1-1) - 2*38h^(2-1) + 3*4h^(3-1) V' = 1*88h^0 - 2*38h^1 + 3*4h^2 V' = 88 - 76h + 12h^2 We now have a quadratic equation. So using the quadratic formula with A=12, B=-76, and C=88, calculate the roots as: (19 +/- sqrt(97))/6 which is approximately 1.525190366 and 4.808142967 We can ignore the 4.808142967 value since although it does indicate a slope of 0, it produces a negative width and is actually a local minimum of the volume function. So the optimal value of h is (19 - sqrt(97))/6, which is approximately 1.525190366</span>
5 0
4 years ago
HELP HELP HELP !!<br> use the chart in 4 for 5 pls ! ( DON'T ANSWER QUESTION 4, IT'S 5 )
kykrilka [37]

Answer: First one is J second is B

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Aisha thinks 1,275 rounded to nearest 100 is 1,200 because 2is less than 5
    14·1 answer
  • in 2 minutes, a conveyor belt moves 500 pounds of recyclable aluminum from the delivery truck to a storage area. a smaller belt
    11·1 answer
  • Write a function to represent each series of transformations: • rotation of 90 degrees counterclockwise about the origin, point
    12·1 answer
  • Does this graph represent a function?Why or why not
    12·1 answer
  • A customer purchased a bicycle for $165. This was 85% of the original price. What is the original price?
    12·2 answers
  • Alex wrote checks on Tuesday for $35 and $40. He also made a deposit in his checking account of $170. Find the overall change in
    5·2 answers
  • Marik agreed to pay a realtor 6.5% commission for selling his house. If the house sold for $68,900, how much does Marik have aft
    14·1 answer
  • Which of the following expressions are equivalent to 6-3?
    5·1 answer
  • Sarah gets 5 community service hours for
    9·1 answer
  • Which property is illustrated by the following ?<br>if 2(x+y)= z, then 2x + 3y= z​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!