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
Alex777 [14]
3 years ago
9

Sophia baby-say 3 7/12 hours on Friday. She baby-sat 2 5/6 hours on Saturday. Which is the best estimate of how many hours Sophi

a baby-sat altogether?
Mathematics
1 answer:
marta [7]3 years ago
4 0
3 1/2 + 3 = 6 1/2


6 1/2hours
You might be interested in
Brandon spends $25.30 on 2 large containers of popcorn and 4 large drinks. A large container of popcorn costs $5.25. What is the
Paladinen [302]

Answer:

$3.70

Step-by-step explanation:

$25.30 = 2P + 4D. p for popcorn and d for drinks

P= $5.25

$25.30 = 2($5.25) + 4D

$25.30 = $10.50 + 4D

-10.50. -10.50

inverse operations

$14.80 = 4D

÷4. ÷4

Inverse operations

$3.70 = D

5 0
3 years ago
Helpppp pleaseeee ????
Agata [3.3K]

Answer:

LQ = 54

Median = 69

UQ = 94

Step-by-step explanation:

This list is already sorted for you, so you don't need to worry about that, otherwise you would need to sort the numbers in ascending order. To find the median, we do \frac{n+1}{2}, where n is the amount of numbers. This gives us 4, so the median is at position 4, so the median is 69. The lower quartile is simply \frac{n+1}{4}, so 2, so the lower quartile is 54. The upper quartile is \frac{n+1}{2} X 3, so 6, so the upper quartile is 94.

3 0
2 years ago
HELPP! Calculate S22 for the arithmetic sequence in which a12=2.4 and the common difference is d=3.4
Natalka [10]

Answer:

Option A is correct.

Value of S_{22} = 15.4

Step-by-step explanation:

Given: a_{12} = 2.4 and common difference(d) = 3.4

A sequence of numbers is arithmetic i.e,  it increases or decreases by a constant amount each term.

The sum of the nth term of a arithmetic sequence is given by;

S_n =\frac{n}{2}(2a+(n-1)d), where n is the number of terms, a is the first term and d is the common difference.

We also know the nth tern sequence formula which is given by ;

a_n = a+(n-1)d                             ......[2]

First find a.

it is given that a_{12} = 2.4

Put n =12 and d=3.4 in equation [2] we have;

a_{12} = a+(12-1)(3.4)

a_{12} = a+(11)(3.4)

2.4 = a + 37.4

Simplify:

a = - 35

Now, to calculate S_{22}

we use equation [1];

here, n =2 , a =-35 and d=3.4

S_{22} = \frac{22}{2}(2(-35)+(22-1)(3.4))

S_{22} = (11)(-70+21(3.4))

S_{22} = (11)(-70+71.4)

S_{22} = (11)(1.4)

Simplify:

S_{22} = 15.4

Therefore, the sum of sequence of 22nd term i.e, S_{22} = 15.4

8 0
3 years ago
Read 2 more answers
PLS HELP PLS HELP PLS HELP
Lelu [443]

The answer is 3/22

Hope this help~

7 0
2 years ago
A person purchased a leather jacket that was marked down by 40%. if the sale price of the jacket was $101.79, what was its origi
Rama09 [41]
The original price was $142.50. What I did was that I added 40% with $101.79 which was the sales price. With the 40% the person saved $40.71.

Hope this helps : )*****
5 0
3 years ago
Other questions:
  • Write 3.29 as a fraction or a mixed number
    11·2 answers
  • Given f(x)=7(9−x)−4, what is the value of f(−1) ?<br><br> Enter the answer in the box.
    7·2 answers
  • 37 1/2 % as a decimal
    13·2 answers
  • Please show work! 99 points plus brainliest!
    11·2 answers
  • Helppppp meeeeeee plzzzzzzzzz
    14·2 answers
  • 9. On Johnny math test, he was asked to re-write the expression –3(x + 10) by using the distributive
    8·1 answer
  • HELPPPPPPPLLL
    6·1 answer
  • Help please please please please ​
    15·2 answers
  • 1.7% as a fraction in simplest form
    15·1 answer
  • if your parents shop in maryland the sales tax is 6% if they buy $180 worth of groceries what is there total
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!