answer.
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
Mashutka [201]
2 years ago
7

nora and hana are tiling two floors in their houses. by noon, nora had laid 3/4 of her tiles. hana had laid 1/2 of her tiles. th

ey laid the same number of tiles. how many tiles might each person have started with?
Mathematics
1 answer:
kondaur [170]2 years ago
5 0
Nora could started with 16 and Hana with 24
You might be interested in
16x^2-24x+7=0 equation and/or inequalities
Ivenika [448]
It is quadratic equation.
First we have find delta given by formula: delta=b^{2}-4ac
where our 
a=16
b=-24
c=7
so, delta=24^{2}-4*16*7=128
Because delta is positive, there is real results.
Now we can use next formula x=\frac{-b+ \sqrt{delta} }{2a}
, to find roots (results, 2 results because its quadratic equation and delta is greater than 0)
x1=\frac{24+ \sqrt{128} }{2*16} = \frac{3+ \sqrt{2} }{4}
x2=\frac{24- \sqrt{128} }{2*16} = \frac{3- \sqrt{2} }{4} 
5 0
2 years ago
Read 2 more answers
Today, Reza ate 20 grapes, which was 400% as many grapes as he ate yesterday. Explain how to use equivalent ratios to find the n
Yanka [14]
What you must do for this case is to extract the relationship of the grapes that were eaten yesterday among the grapes that were eaten today.
 To do it, let:
 x: number of grapes that Reza ate yesterday
 (x / 20) = (100/400).
 Clearing x we have:
 x = (100/400) * (20) = 5
 answer
 the number of grapes Reza ate yesterday was 5
3 0
2 years ago
Read 2 more answers
A six-sided fair die is rolled and a fair coin is tossed. If event M represents getting an odd number on the die and event N rep
poizon [28]
<span>Answer:

The two events are independent. In the given scenario, P(M and N) =0.25

Explanation:

1) Independent events are those that do not affect each other. In this case the number that you roll does not change the flip of the coin. So, whatever number you get with the die, the probabilities of landing tail or head when tossing the coin are the same.

2) The probability of the two simultaneous events: getting an odd number and landing a tail, since they are independent, is equal to the product of the two independent events:
P(M and N) = P(M) x P (N) (only because they are independent)

3) The probability of getting and odd number is 0.5 (half of the numbers are odd and half are even => probability = 1/2)

4) The probability of the coin lands tail is 0.5 (1/2).

5) Then the joint probability is 0.5 x 0.5 = 0.25</span>
3 0
2 years ago
The function f(x) is shown on the graph. On a coordinate plane, a curved line with 3 arcs, labeled f of x, crosses the x-axis at
brilliants [131]

Answer:

x = -2,1,3

Step-by-step explanation:

Given: The curved line represented by the function  crosses the x-axis at  and y-axis at  

To find: value of x for which  

Solution:

f(x)=0    =     gives those values of x for which the curve represented by the given function cuts the x-axis.

According to question, the curve cuts the x-axis at

5 0
2 years ago
Read 2 more answers
Which correctly describes how to determine the measure of angle 1?
exis [7]

Answer: 105 and angel 2 are alternate exterior angles, angle 2 is 105 degrees. Angles 1 and 2 and supplementary so 180-105 is 75. Angle 1 measures 75 degrees.

Step-by-step explanation:

The answer is A.

4 0
2 years ago
Read 2 more answers
Other questions:
  • While remodeling her kitchen Angela is repainting. She estimates that she paints 55 square feet every half-hour. How many square
    5·1 answer
  • You and your friend are selling tickets to a charity event. You sell 11 adult tickets and 8 student tickets for $158. Your frien
    11·1 answer
  • Morgan babysits every saturday. The equation d=9.5h represents how much she earns after h hours. Last week, she also babysat on
    5·2 answers
  • An 80 ounce bottle of apple juice contains 32 ounces of water a 64 ounce bottle of orange juice has 48 ounces of water which jui
    10·2 answers
  • Find the length of the third side of the right triangle.
    8·1 answer
  • Students at a middle school were surveyed on how they get to school. Out of 230 students, 10% said they ride their bikes to scho
    15·2 answers
  • Sabas dance class is 3 miles from her home. Her music class is 12 miles from her home. Write an equation that shows the number o
    9·1 answer
  • Vince and 11 of his friends went out for pizza on Saturday night to celebrate Vince’s birthday. The cost of the pizza and soft d
    14·2 answers
  • John bought a new game system for $529 how much is he in debt
    13·1 answer
  • The angle of elevation to a nearby tree from a point on the ground is measured to be 47^{\circ} ∘ . How tall is the tree if the
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!