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
n200080 [17]
3 years ago
10

At the calendar shop, wall calendars cost $5 and desk calendars cost $1. Adriana spent $20 to buy 8 calendars. How many of each

type of calendar did Adriana buy?
Mathematics
2 answers:
solmaris [256]3 years ago
8 0

Answer: she bought 3 wall calender's and 5  desk calender's

Step-by-step explanation:i skip counted and tried to fit the numbers as like if i was buying them

Alex73 [517]3 years ago
7 0

Answer:

She bought 3 wall calendars and 5 desk calendars.

Step-by-step explanation:

3 wall calendars times 5 dollars equals 15 dollars so she has 5 dollars left to buy 5 desk callenders totalling 20 dollars and 8 calendars.

You might be interested in
Find the value of x (circles)
Marrrta [24]

Answer:

x = 55

Step-by-step explanation:

opposite angles are supplementary

125+x = 180

Subtract 125 from each side

125+x-125 = 180-125

x = 55

6 0
3 years ago
Read 2 more answers
Suppose that a brand of lightbulb lasts on average 1730 hours with a standard deviation of 257 hours. Assume the life of the lig
Debora [2.8K]

Answer:

P [  1689  ≤   X  ≤  2267 ]  = 54,88 %

Step-by-step explanation:

Normal Distribution

Mean        μ₀  =  1730

Standard Deviation      σ  = 257

We need to calculate  z scores for the values   1689     and      2267

We apply formula for z scores

z =  ( X -  μ₀ ) /σ

X = 1689     then

z = (1689 - 1730)/ 257      ⇒ z = - 41 / 257

z  = -  0.1595

And from z table we get  for  z =  - 0,1595

We have to interpolate

        - 0,15          0,4364

        - 0,16          0,4325

Δ  =   0.01           0.0039

0,1595  -  0,15  =  0.0095

By rule of three

0,01                  0,0039

0,0095                 x ??      x  =  0.0037

And    0,4364  -  0.0037  = 0,4327

Then    P [ X ≤ 1689 ]  =  0.4327     or    P [ X ≤ 1689 ]  = 43,27 %

And for the upper limit  2267  z  score will be

z  =  ( X - 1730 ) / 257       ⇒  z =  537 / 257

z  =  2.0894

Now from z table   we find  for score   2.0894

We interpolate and assume  0.9815

P [ X ≤ 2267 ]  =  0,9815

Ths vale already contains th value of   P [ X ≤ 1689 ]  =  0.4327

Then we subtract  to get    0,9815  -  0,4327   = 0,5488

Finally

P [ 1689  ≤   X  ≤  2267 ]  =  0,5488  or  P [  1689  ≤   X  ≤  2267 ]  = 54,88 %

8 0
3 years ago
Write each mixed number as an improper fraction and as a decimal then tell whether the decimal is terminating or repeating.
Sphinxa [80]
7) 29/9; repeating

8) 301/20; terminating

9) -101/20; terminating

5 0
3 years ago
Find the median of each set of data. 12, 8, 6, 4, 10, 1 7 6, 3, 5, 11, 2, 9, 5, 0 5 30, 16, 49, 25
professor190 [17]

Answer:

first 7 then 5 and 27.5

Step-by-step explanation:

4 0
3 years ago
Simplify the expression:<br> –9w+–6w+10w+8w
Y_Kistochka [10]

Final Answer: 3w

Steps/Reasons/Explanation:

It is common addition and subtraction because they all have w after the number. This means they are the same variable. A plus minus (+-) would be a minus (-).

Question: Simplify the expression: -9w +- 6w + 10w + 8w.

<u>Step 1</u>: Simplify.

-9w - 6w + 10w + 8w

<u>Step 2</u>: Simplify.

3w

~I hope I helped you :)~

4 0
2 years ago
Other questions:
  • How do I justify if these functions are inverses of each other ... F(x)=x^3 +4 &amp; g(x)=3(radical sign) -4
    7·1 answer
  • There were 480 people at play. The admission price was $2 for adults and $1 for children. The admission receipts were $770. How
    8·1 answer
  • By decreasing each dimension by 1 unit, the area of a rectangle decrease from 40 square feet (on the left) to 28 square feet (on
    13·1 answer
  • Solve the equation for x.<br> Sqrt X-6+3 = 10<br> x=1<br> x=13<br> x = 43<br> x= 55
    14·1 answer
  • Factor the polynomial expression 15x^2 - 2x - 8
    13·1 answer
  • 2) Suppose 3x + 4y = 52 and 5x + y = 30. What is the value of 8x − 2y?
    13·2 answers
  • A random number generator is used to create a list of 300 single-digit numbers. Of those 300 numbers, 146 are odd
    6·2 answers
  • A. 1/3=0.33<br>B. 1/6=0.17<br>C. 1/10=0.10<br>D. 1/4=0.25​
    7·1 answer
  • 9/20 as a whole number
    13·2 answers
  • Ben is studying photography, and he was asked to submit 6 photographs from his collection to exhibit at the fair. He has 15 phot
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!