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
ValentinkaMS [17]
3 years ago
9

I bought 120g of candies for $1.65, how much would 70g cost, and how much could i buy for $3.80

Mathematics
1 answer:
VladimirAG [237]3 years ago
4 0
70 g* ($1.65/ 120 g)= $0.96.

$3.80* (120 g/ $1.65)= 276.364 g.

70 g of candies would cost $0.96
With $3.80, we can buy 276.364 g of candies~
You might be interested in
Solve the following equation:
Rama09 [41]

Complete the square.

z^4 + z^2 - i\sqrt 3 = \left(z^2 + \dfrac12\right)^2 - \dfrac14 - i\sqrt3 = 0

\left(z^2 + \dfrac12\right)^2 = \dfrac{1 + 4\sqrt3\,i}4

Use de Moivre's theorem to compute the square roots of the right side.

w = \dfrac{1 + 4\sqrt3\,i}4 = \dfrac74 \exp\left(i \tan^{-1}(4\sqrt3)\right)

\implies w^{1/2} = \pm \dfrac{\sqrt7}2 \exp\left(\dfrac i2 \tan^{-1}(4\sqrt3)\right) = \pm \dfrac{2+\sqrt3\,i}2

Now, taking square roots on both sides, we have

z^2 + \dfrac12 = \pm w^{1/2}

z^2 = \dfrac{1+\sqrt3\,i}2 \text{ or } z^2 = -\dfrac{3+\sqrt3\,i}2

Use de Moivre's theorem again to take square roots on both sides.

w_1 = \dfrac{1+\sqrt3\,i}2 = \exp\left(i\dfrac\pi3\right)

\implies z = {w_1}^{1/2} = \pm \exp\left(i\dfrac\pi6\right) = \boxed{\pm \dfrac{\sqrt3 + i}2}

w_2 = -\dfrac{3+\sqrt3\,i}2 = \sqrt3 \, \exp\left(-i \dfrac{5\pi}6\right)

\implies z = {w_2}^{1/2} = \boxed{\pm \sqrt[4]{3} \, \exp\left(-i\dfrac{5\pi}{12}\right)}

3 0
2 years ago
The sum of 75 and twice a number is 219. Find the number
Lera25 [3.4K]

Answer:

12

Step-by-step explanation:

219-75=144

144%2=12

4 0
3 years ago
Read 2 more answers
-65 is 5 times a product of 5 and a number
hichkok12 [17]

Answer:

Step-by-step explanation:

=-65*5

=-325

3 0
3 years ago
Question:He fills the pencil holder with sand before he wraps it to make it feel like a heavy, expensive gift. How much sand wil
mr_godi [17]

Answer:

10.5 in

Step-by-step explanation:

volume = \frac{1}{2}  \times 3 \times 2 \times 3.5 \\  = 3 \times 3.5 \\  = 10.5 \: in

4 0
3 years ago
What is 3 7/9 as an improper fraction?
scoundrel [369]
3 \frac{7}{9}= \frac{3x9+7}{9}= \frac{34}{9} \\ 
 \\ Solution: \frac{34}{9}
3 0
3 years ago
Read 2 more answers
Other questions:
  • The landscaper charges a rate of $40 per hour to plant trees.
    9·1 answer
  • Please help me with this
    13·2 answers
  • Which statement best defines the two quantities that are measured to find the rate at which an airplane descends? A) The quantit
    9·2 answers
  • A square has side length of 9 in. If the area is doubled, what happens to the side length?
    8·1 answer
  • F(x)=x^2+3x+2 is shifted 2 units left.the result is g(x). What is g(x)?
    11·2 answers
  • A triangle has a perimeter of 165 cm. The first side is 65 cm less than twice the second side. The third side is 10 cm less than
    8·2 answers
  • Solve the system given:
    7·1 answer
  • Three plane tickets to New York cost $2,472.If each plane ticket costs the same amount, about how much does one ticket cost?How
    10·1 answer
  • Brooke multiplied 3 and 9 and got 17. Brooke knows her answer is wrong because she knows is should be approximately
    12·1 answer
  • Pls help I’m giving away 10 points
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!