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
Sophie [7]
2 years ago
11

the diameter of a U.S penny is 3/4 inch. how many pennies would it take to make a row 42 inches long?

Mathematics
2 answers:
lesya692 [45]2 years ago
7 0
42 divided by 3/4 equals 56 pennies
makvit [3.9K]2 years ago
5 0

Answer: 56

Step-by-step explanation:

We are given that ,

The diameter of each U.S. penny = \dfrac{3}{4} inch.

The length of the row of pennies = 42 inches

Then , the number of pennies in that row will be :

=\text{Length of row}\div\text{Diameter of each penny}\\\\=42\div\dfrac{3}{4}\\\\=42\times\dfrac{4}{3}\ \ \text{[Flip divisor fraction, multiply the original number by its reciprocal.]}\\\\=56  

Hence, the required number of pennies. = 56

You might be interested in
James wants to tile his floor using tiles in the shape of a trapezoid. To make the pattern a little more interesting he has deci
marshall27 [118]

Answer:

Choice C. 14 inches

Step-by-step explanation:

Middle between 12 and 16 inches.

7 0
2 years ago
Write the standard equation of the circle with the given center is (0,0) and radius is 2.5
BlackZzzverrR [31]

Answer:

x² + y² = 6.25

Step-by-step explanation:

The standard equation of a circle is ( x – h)² + ( y - k)² = r² where the center is (h, k) and r is the radius.

From your given information that the center is (0, 0) then both h and k are 0. Then r is 2.5, so

( x – 0)² + ( y - 0)² = (2.5)²

x² + y² = (2.5)²

x² + y² = 6.25

7 0
2 years ago
A soccer team eats lunch at a restaurant on the way to the tournament the total cost of the food was $85.25 before 6% tax and 18
mash [69]

6/100× $85.25

x=$511.50 divided by 100

x=$5.1150 Or $5.12

rounded to the nearest cent

3 0
3 years ago
Marcus needs to bike at least 80 miles this week for his training if he already has 25 miles this week then how many miles shoul
nadezda [96]

Answer: 55 miles

Step-by-step explanation: Marcus goal is 80 miles for the week. he has already completed 25 miles of that goal so you would subtract 25 from 80 then you would find the miles still left

80-25=55

6 0
3 years ago
A palm tree is supported by two guy wires as shown in the diagram below. Which trig expression can be used to find the height on
Volgvan

Answer:

D. tan(30^\circ+45^\circ) is the correct answer.

Step-by-step explanation:

The given situation can be represented as a figure attached in answer area.

B is the base of tree.

C is the base of wires.

A and D are the end of 2 wires supporting the tree.

\angle DCB =45^\circ\\\angle ACB =75^\circ\\

Here, we need to find the Height of the tree which is represented the by side AB.

and we are given that bases of wires and tree base are at a distance 4 ft.

i.e. side BC = 4 ft

If we look at the \triangle ABC, we are given the base BC and the \angle ACB, and the perpendicular is to be find out.

We can use trigonometric identity:

tan\theta =\dfrac{Perpendicular}{Base}

tan 75^\circ = \dfrac{AB}{BC}\\\bold {tan (45+30)^\circ }= \dfrac{AB}{4}\\\Rightarrow AB = \bold {tan (45+30)^\circ } \times 4 = 14.93\ ft

Hence, D. tan(30^\circ+45^\circ) is the correct answer.

5 0
3 years ago
Other questions:
  • Find the area of the regular hexagon if the apothem is 8 squared root 3 m and a side is 16 m. Round to the nearest whole number.
    7·1 answer
  • Help me i dont understand this question
    12·1 answer
  • Please Help, What is the value of x?
    9·1 answer
  • Solve with image 42.9 -11.71
    10·1 answer
  • Inverse of y=xsquare root -36
    14·1 answer
  • A-3b=4;2a=6b-9 Answer by elimination, please include the entire work on how you got to your answer. According to my math teacher
    12·1 answer
  • What is the y-intercept ** write as a ordered pair.​
    14·1 answer
  • What is the value of [(-3)^3]^2+2^4?
    15·1 answer
  • Please solve thanks tyyy
    10·1 answer
  • 21. To find a baseball pitcher's earned run average (ERA), you can use the formula Ei=9r, in which E represents ERA, i represent
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!