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
UNO [17]
3 years ago
11

A sum of money when invested for a definite period at r% simple interest will yield an interest of rm80 .using the same interest

rate, find the interest earned if the sum is tripled and the investment period is doubled
Mathematics
1 answer:
maks197457 [2]3 years ago
7 0
The invest could probably be maybe 8% for a question
You might be interested in
The sum of the exterior angles of an octagon is 360 degrees. True False
NeX [460]
The answer is true duh
4 0
3 years ago
Read 2 more answers
Raymond has two seven foot long boards, and wants to cut fifteen inch long peices from each; what is the greatest number of peic
anastassius [24]

7ft = 84in   84  ÷  15 =  5.6 pieces he can cut from each board.  Since .6 is not a whole piece measuring 15 inches long, he can only cut 5 pieces from each board.

So, 5 x 2 = 10

He would be able to cut 10 pieces measuring 15 inches long.

Hope this helps :)

7 0
3 years ago
Read 2 more answers
7) Which statement about perpendicular lines is true?
agasfer [191]

Answer:

is the a. Perpendicular lines form 90° angles.

3 0
2 years ago
Read 2 more answers
a toy manufacturer has designed a new piece for use in building models. It is a cube with side lengths 7 mm and has a 3 mm in di
Ray Of Light [21]

Given that the cubical piece has side (s) 7 mm, and a cylindrical hole of diameter (d) as 3 mm.

The volume of the piece can be calculated as,

\begin{gathered} \text{Volume of piece}=\text{ Volume of cube}-\text{ Volume of cylinder} \\ V=s^3-\frac{\pi}{4}d^2s \\ V=7^3-\frac{\pi}{4}(3)^2(7) \\ V=343-\frac{63\pi}{4} \\ V\approx293.52mm^3 \\ V\approx293.52\times10^{-9}\text{ }m^3 \end{gathered}

It is mentioned that the material costs $207 per cubic meter, so the cost (c) of 1 piece is calculated as,

\begin{gathered} \text{Cost of 1 piece}=\text{ Cost per unit volume}\times\text{ Volume of 1 piece} \\ c=207\times293.52\times10^{-9} \\ c\approx60758.64\times10^{-9} \end{gathered}

This is the cost (in dollars) for 1 piece.

Given that the manufacturer wants to produce 1,000,000 such pieces, so the total cost (TC) is calculated as,

\begin{gathered} \text{Total Cost}=\text{ Cost per piece}\times\text{ No. of pieces} \\ TC=60758.64\times10^{-9}\times1,000,000 \\ TC=60758.64\times10^{-9}\times10^6 \\ TC=60758.64\times10^{-3} \\ TC=60.75864 \\ TC\approx60.75 \end{gathered}

Thus, the total prototypes will cost around $60.75

7 0
1 year ago
The diagonals of a rhombus are 21 m and 32 m. What is the area of the rhombus?<br> 30 POINTS
Wittaler [7]
I have included attachment below

so since a rhombus is 2 pairs of paralell sides, we can cut it into 4 triangles
we can see that we can take the bottom 2 triangles and put them on top to get a rectangle that is width 21 and height 32/2 (16=height
area of rectangle=legnth times width=16 times 21=336 m^2

answer is 336 m^2

5 0
3 years ago
Other questions:
  • Ivan has 4 hours of music on his mp3 player. Jazz makes up ¹/6 of the total time. how many hours of jazz are on Ivan's mp3 playe
    11·1 answer
  • The Warren family was saving up for their summer vacation. Mrs. Warren had $486.88 in their savings account for the trip. Mr. Wa
    8·1 answer
  • Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    14·1 answer
  • Help please !!!!! plz
    5·1 answer
  • What the slope between 2,0 and-1,6
    10·1 answer
  • F(x) = 4x – 2<br> g(x) = -3x2 – 7x + 4<br> Find: f(x) · g(x)<br><br> HeLP
    5·1 answer
  • Approximate the value of square root 44 to The nearest hundredth
    11·2 answers
  • Help asap I will give you points ​
    5·2 answers
  • Given y²+5y-6= (y+p) (y+q), find the values of p and q. ​
    14·2 answers
  • If m = 2 2/5, what is the value of 5(m + 2)? 20 2/5, 3/5 ,9 2/5 ,22
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!