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
spin [16.1K]
3 years ago
5

1. Natasha worked at a diner for $10per hour last week and already had $42 in her bank account? She paid $206 for a prom dress.

The equations 206 = 42 + 10h represents this problem. How many hour did she work to pay for the prom dress?
2. Translate the following sentence into a mathematics equation. The sum of 10 and five time a number is the same as the difference of the number and 6
Mathematics
2 answers:
Katarina [22]3 years ago
6 0

Answer:she worked 17 hours

Step-by-step explanation: 10×17=170+42=212

Firdavs [7]3 years ago
3 0

Answer:

She worked 16.4 hours

Step-by-step explanation:

You might be interested in
3 times what equals 14
ad-work [718]
4.67, it’s a repeating decimal
7 0
3 years ago
Read 2 more answers
A boat takes 3.6 h to travel downstream from its dock to a fishing hole. If the water were still, it would have taken 4.5 h to m
salantis [7]
Given:

t1 = 3.6 h
t2 = 4.5 h
x = speed of boat
y = speed of water

Required:
a) Expression of distance traveled with moving water with 3.6h
     Expression of distance traveled with moving water with 4.5h
b) Solve for y
c) Percent of boat's speed is the water current

Solution:

Working formula: 
distance = velocity*time

a) For travelling downstream, we get the equation

d = (x +y)*3.6

For travelling upstream, we get the equation

d = (x-y)*4.5

b) Setting the distance as equal for travelling upstream or downstream, we arrive at the equation of

(x+y)*3.6 = (x-y)*4.5
3.6x + 3.6y = 4.5x - 4.5y
8.1y =0.9x
y = x/9

c) percentage = 1/9*100% = 11.1%

<em>ANSWERS: a) d = (x+y)*36; d = (x-y)*4.5
</em>
                     <em>b) y = x/9
</em>                     <em>c) 11.1%</em> 

3 0
3 years ago
Exponential form of xyyzzz
Trava [24]

Answer:

  xy²z³

Step-by-step explanation:

An exponent is a way to indicate the number of times the factor is repeated. When it is 1, it is rarely shown.

  x is repeated once, so will appear without an exponent

  y is repeated twice, so will have an exponent of 2

  z is repeated 3 times, so will have an exponent of 3

__

  xyyzzz = xy²z³

_____

In plain text, an exponent is indicated with a caret (^).

  xy^2z^3

8 0
3 years ago
A new sidewalk will be 5 feet​ wide, 100 feet​ long, and filled to a depth of 3 inches ​(0.25 ​foot) with concrete. How many cub
GarryVolchara [31]

Answer:

4.63 cubic yard.

Step-by-step explanation:

Given,

The length of sidewalk, l = 100 feet,

Width, w = 5 feet,

Depth, h = 3 inches = 0.25 feet,

Thus, the volume of the concrete needed for making the sidewalk,

V=l\times w\times h

=100\times 5\times 0.25

= 125 cubic feet,

∵ 1 cubic yard = 27 cubic feet,

⇒ 1 cubic feet = \frac{1}{27} cubic yard,

Thus, the quantity of concrete needed = \frac{125}{27} ≈ 4.63 cubic yard.

4 0
3 years ago
A multiple-choice standard test contains total of 25 questions, each with four answers. Assume that a student just guesses on ea
weqwewe [10]

Answer:

a)  8*88*10⁻⁶ ( 0.00088 %)

b) 0.2137 (21.37%)

Step-by-step explanation:

if the test contains 25 questions and each questions is independent of the others, then the random variable X= answer "x" questions correctly , has a binomial probability distribution. Then

P(X=x)= n!/((n-x)!*x!)*p^x*(1-p)^(n-x)

where

n= total number of questions= 25

p= probability of getting a question right = 1/4

then

a) P(x=n) = p^n = (1/4)²⁵ = 8*88*10⁻⁶ ( 0.00088 %)

b) P(x<5)= F(5)

where F(x) is the cumulative binomial probability distribution- Then from tables

P(x<5)= F(5)= 0.2137 (21.37%)

7 0
3 years ago
Other questions:
  • Martin wants to buy a new car. The price of the car is $28,249. If Martin gets a bank loan with a simple interest rate of 3.49%
    7·1 answer
  • If a dolphin is at -7 meters below sea level and jumps 0.5 meters, wheres the dolphin at now?
    9·1 answer
  • The inequality 4x + 260 &lt; 400 represents the cost to repair Tom’s car. The cost of parts is $260 and it will take 4 hours of
    13·1 answer
  • I had trouble with this problem for homework, please help.
    6·1 answer
  • Isabella took a taxi from her house to the airport. The taxi company charged a pick-
    5·1 answer
  • Find the coordinates of the image of Z(−3,−1) after the translation (x,y)→(x−2,y−7).
    6·1 answer
  • Solve for b<br> 2(-2b+3)=9
    13·1 answer
  • What numbers would be in the in the 4 sections of a 2 x 2 array that shows the problem 18 x 17?
    14·1 answer
  • A cone has a circular base of radius 8m. Given that the total surface area of the cone is 350m^2, find the slant height
    14·1 answer
  • A quadrilateral in the coordinate plane has vertices (3, -2), (3, -4), (5, -4), and (5, -2). What is the area, in square units,
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!