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
andrey2020 [161]
3 years ago
8

Molly does 15% of her homework in study hall. If she spent 45 minutes on homework in stuffy hall, how much time in minutes dose

she need to spend on homework altogether?
Mathematics
1 answer:
kherson [118]3 years ago
6 0
The answer is 15/100 x 45 =6.75 minutes <span />
You might be interested in
Which represents a quadratic function ?
mars1129 [50]

Answer:

\boxed{\boxed{B.\ f(x)=\dfrac{3}{4}x^2+2x-5}}

Step-by-step explanation:

Quadratic function-

It is a function that can be represented by an equation of the form f = ax^2 + bx + c, where a\neq 0

In a quadratic function, the greatest power of the variable is 2.

As in the first option the highest power is 3, so it is not a quadratic function.

Even though the power of x is 2 in the third option, but as it is in the denominator, so the overall power of x becomes -2. Hence it is not a quadratic function.

As the coefficient of x^2 is 0 in case of fourth option, so it is not a quadratic function.

Equation in option 2 satisfies all the conditions of quadratic function, hence it is the quadratic function.

8 0
4 years ago
Read 2 more answers
EasyElectrics supermarket orders light bulbs from suppliers, AA Electronics and AAA Electronics. EasyElectrics purchases 30% of
saw5 [17]

Answer: (a) 0.006

               (b) 0.027

Step-by-step explanation:

Given : P(AA) = 0.3 and P(AAA) = 0.70

Let event that a bulb is defective be denoted by D and not defective be D';

Conditional probabilities given are :

P(D/AA) = 0.02 and P(D/AAA) = 0.03

Thus P(D'/AA) = 1 - 0.02 = 0.98

and P(D'/AAA) = 1 - 0.03 = 0.97

(a) P(bulb from AA and defective) = P ( AA and D)

                                                       = P(AA) x P(D/AA)

                                                       = 0.3 x 0.02 = 0.006

(b) P(Defective) = P(from AA and defective) + P( from AAA and defective)

                         = P(AA) x P(D/AA) + P(AAA) x P(D/AAA)

                         = 0.3(0.02) + 0.70(0.03)

                         = 0.027

3 0
3 years ago
Which of the following combined with the equation −9x + 3y = 12 creates a system of linear equations with no solution?
Mumz [18]

Answer:

Step-by-step explanation:

You can't get an exact answer to this because there are no choices.

Add 9x to both sides.

3y = 9x + 12              Divide by 3

3y/3 = 9x/3 + 12/3    Combine

y = 3x + 4

Now to get anything at all that is parallel to this and providing no answer because there is no intersection of the two lines, just change the 4 to something else. Here's one example

y = 3x + 8

As long as the number in front of the x's is the same, they are parallel with no point in common.

8 0
3 years ago
Rewrite 128 in an expomential notion using 2 as a base
KiRa [710]
\underbrace{2\times 2\times 2\times 2\times 2\times 2 \times 2} = 128\\\\~~~~~~~~~~~~~~~~~7\\\\\\\boxed{\bf{2^7 =128}}}
3 0
3 years ago
Mary wants to fill in a cylinder vase. At the flower store they told her that the vase should be filled 3/4 for the flowers to l
Nimfa-mama [501]

Answer: 376.98192 mL

Step-by-step explanation:

We are going to use this equation.

V  = π  *  r²  * h

according to the question we have the value for r and h, if you replace the values into the equation we will get  following product:

note: also keep in mind that value of π is 3.141516

V  = π  *  r²  * h

V  = π  *  (4in)²  * (10in)

V = 502.64256 in³

after we can divide this value in 4 equals parts

then  we get the following equation:

502.64256 in³ / 4 = 125.66064 in³

after that that you can multiply this value by 3 to get the 3 parts of the cylinder vase for example:

125.66064 in³ * 3 = 376.98192 in³

and this result is the volume of water that we have to pour into the vase

8 0
4 years ago
Other questions:
  • Five friends share 3 bags of trail mix equally. What fraction of a bag does EA friend get
    10·2 answers
  • -3a - 3 = -2 + 3p ˢᴼᴸᵛᴱ ᶠᴼᴿ ᴬ
    8·1 answer
  • URGENT PLEASE HELP!!!
    14·2 answers
  • 30 oatmeal and 48 chocolate chip cookies package into identical containers so that each container has the same number of each ki
    5·2 answers
  • What is 20 over 10 in a mixed number
    7·2 answers
  • PLZ HELP 50 POINTS!!! Write a summary of what you have learned about rate of change.
    14·2 answers
  • Solve the equation for a.<br><br> K = 4a + 9ab
    9·2 answers
  • How do i find the least common denominator of 3/8 and 5/6?<br><br>No links please.​
    15·1 answer
  • A student answered 86 problems on a test correctly and received a grade of 98%. How many problems were on the test, if all the p
    5·1 answer
  • The Spice Girls latest single sells 40% fewer singles this week than last week. Last week it sold 120,000 singles. How many did
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!