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
Fed [463]
2 years ago
13

Help, need answer. do not need to be worked out ​

Mathematics
2 answers:
Darya [45]2 years ago
6 0

Answer:

the answer is D

Step-by-step explanation:

I hope this helps and when finding the area of a triangle remember to divide by 1/2!

miv72 [106K]2 years ago
3 0

Answer:

B 98

Step-by-step explanation:

4*7=28  times 3 = 84

3.5*4=14

84+14=98

Hope this helps! :)

You might be interested in
Twenty-five blue and twenty-five yellow marbles are placed in a jar. Thirty-four marbles are removed from the jar and put in a s
GrogVix [38]

Answer:

a) Let b represent the number of blue marbles placed in the second jar. Then 34-b is the number of yellow marbles in the second jar, and 25 - (34-b) is the number of yellow marbles remaining in the first jar. That value simplifies to b-9. The positive difference between b and (b-9) is 9.  

b) Let n, d, p represent the numbers of nickels, dimes, and pennies, respectively.  

.. (5n + 10d + p)/(n + d + p) = 7 ... the average value of the collection is 7 cents per coin  

.. (5(n-1) + 10d + (p+5))/((n-1) + d + (p+5)) = 6 ... replacing one nickel with pennies changes the average to 6 cents per coin  

Multiplying by the denominator and subtracting the right side of each resulting equation gives  

.. 10d + 5n + p = 7d + 7n + 7p  

.. 10d + 5n + p = 6d + 6n + 6p + 24  

Subtracting the second equation from the first gives  

.. 0 = d + n + p - 24 ... tells us the total number of coins is 24. This tells us the total value is $1.68 = 24*$0.07.  

This sum will consist of at least 3 pennies. If that is all the pennies, then the remaining 21 nickels and dimes must add to $1.65. If all were nickels, the value of the 21 coins would be $1.05. We have $0.60 more than that. For each nickel traded for a dime, we gain $.05, so 12 of the 21 nickels must be traded for dimes to raise the total coin value to $1.65.  

Alternatively, you can write two equations in the two unknowns:  

.. d + n = 21  

.. 10d + 5n = 165  

Subtracting 5 times the first equation from the second gives  

.. 5d = 60 ... which gives the same answer as reasoned above.  

There are 3 pennies, 9 nickels, 12 dimes. (If there are 8 pennies to start, then the number of nickels is zero, so it is impossible to trade one for 5 pennies. The solution shown is the only one.)

7 0
3 years ago
7th grade math help me pleaseeee
Flura [38]

Answer:

0.325

Step-by-step explanation:

13 ÷ 40 = 0.325

Yo, why is your school still going on? :))))

4 0
2 years ago
Read 2 more answers
Melinda wants to paint exterior lateral surface of her house it is 9 ft high and has a perimeter of 140 ft each gallon of paint
Allushta [10]

She needs to buy two 1 gallon cans

high 9 ft=1side=9ft

2 sides=18ft

140-18=122   122/2=61    the other side is 61ft

Area  61x9=549 squared  ft

549/300=1.83 cans

She will need to buy two 1 gallon cans


4 0
3 years ago
Helpppppppppppppppppppppppppppppppppppppp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Delicious77 [7]
I think the answer is 77
5 0
2 years ago
I need help on this asap (math)
prisoha [69]

Answer:

the second one

Step-by-step explanation:

when you multiply 2 negative numbers they turn into a positive

15/-5=-3

3 0
3 years ago
Read 2 more answers
Other questions:
  • Savannah is having her teammates over after the basketball game. She decided that 2 pizzas would feed 5 people, so how many pizz
    5·1 answer
  • 23. Business: Mixing Nuts A nut store normally sells cashews
    13·1 answer
  • Jan Quint earns $11.00 an hour at her job and is entitled to time-and-a-half for overtime, and double time on holidays. Last wee
    12·1 answer
  • A pilot in a helicopter sports a landing pad below. If the angle of elevation is73 degree and the horizontal distance to the pad
    10·1 answer
  • The price of a technology stock has risen to $9.82 today. Yesterday's price was $9.71. Find the percentage increase. Round your
    6·1 answer
  • Car World is selling cars for 20% of the original price, x. The dealership is also offering an additional decrease of $500, what
    13·1 answer
  • Which angle in ABC has the largest measure?
    7·2 answers
  • Part A: Explain why the x-coordinates of the points where the graphs of the equations y = ^2−x and y = ^4x + 3 intersect are the
    10·1 answer
  • Find the value of tan M rounded to the nearest hundredth, if necessary.
    10·1 answer
  • Esther cycles 70 miles over 4 days.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!