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
const2013 [10]
3 years ago
13

Sid paid $6.80 for wrapping paper and $7.35 for ribbon. He wrapped identical gifts for all of his cousins. Sid wrote the express

ion (6.80 + 7.35) / 8 to help him calculate how much it cost him to wrap each gift. How many gifts did Sid wrap? Explain.
Mathematics
2 answers:
enot [183]3 years ago
5 0

Answer:

He spent $1.76875 on each gift. He wrapped 8 gifts.

Step-by-step explanation:

Add $6.80 and $7.35 to get a sum of $14.15. Then divide that total by 8 to get 1.76875 which is your answer.

If you need to check the work, use the inverse operations for the work you've done. So to check it, multiply 1.76875 times 8 and you'll get 14.15, which is 6.80 + 7.35

Klio2033 [76]3 years ago
4 0

Sid wrapped 8 gifts.

Look at the equation Sid wrote to caclulate the cost to wrap each gift. (6.80 + 7.35) / 8. 6.80 represents the total paid for wrapping paper. 7.35 represents the total amount paid for ribbon. Knowing that information, using the equation, and knowing who Sid wrapped gifts for, we can infer Sid wrapped gifts for 8 cousins.

You might be interested in
Please answer question three and four if you can :)<br> Show full working out ty;)
nikklg [1K]

Step-by-step explanation:

3

Let D be the mid point of side BC, [B(2, - 1), C(5, 2)].

Therefore, by mid-point formula:

D = ( \frac{2 + 5}{2},  \:  \:  \frac{ - 1 + 2}{2} ) = ( \frac{7}{2}, \:  \:  \frac{ 1}{2} ) \\ \therefore D= (3.5, \:  \: 0.5) \\  \& \: A=(-1,\:\:4)...(given) \\\\  now \: by \: distance \: formula \\  \\ Length  \: of \:  segment  \: AD \\  =  \sqrt{( - 1 - 3.5)^{2}  +  {(4 - 0.5)}^{2} }  \\ =  \sqrt{(4.5)^{2}  +  {(3.5)}^{2} }  \\ =  \sqrt{20.25 + 12.25 }  \\  =  \sqrt{32.5}  \\    \red{ \boxed{\therefore Length  \: of \:  segment  \: AD  = 5.7 \: units}}

4 (a)

Equation of line AB[A(2, 1), B(-2, - 11)] in two point form is given as:

\frac{y-y_1}{y_1-y_2} =\frac{x-x_1}{x_1 - x_2} \\\\\therefore \frac{y-1}{1-(-11)} =\frac{x-2}{2 - (-2) } \\\\\therefore \frac{y-1}{1+11} =\frac{x-2}{2 +2} \\\\\therefore \frac{y-1}{12} =\frac{x-2}{4} \\\\\therefore \frac{y-1}{3} =\frac{x-2}{1} \\\\\therefore y-1= 3(x - 2)\\\\\therefore y= 3x - 6+1\\\\\therefore y= 3x - 5\\\\ \huge \purple {\boxed {\therefore 3x - y-5=0}} \\

is the equation of line AB.

Now we have to check whether C(4, 7) lie on line AB or not.

Let us substitute x = 4 & y = 7 on the Left hand side of equation of line AB and if it gives us 0, then C lies on the line.

LHS = 3x - y-5\\=3\times 4-7-5\\= 12-12\\=0\\= RHS

Hence, point C (4, 7) lie on the straight line AB.

4(b)

Like we did in 4(a), first find the equation of line AB and then substitute the coordinates of point C in equation and if they satisfy the equation, then all the three points lie on the straight line.

4 0
3 years ago
Simplfy <br> -3+(-10) <br> please explain how to do it too because i am lost in algebra.
Margaret [11]
Answer:
-13

you're basically adding -3 and -10 because they're both negatives
4 0
2 years ago
The graph shows a car's value as a function of its age.
IRISSAK [1]
The price it 2 years would be 10k cash
4 0
3 years ago
If 4x -8y + 9 = 0 and 3y + Mx + 1 0 are parallel find the value of m
Klio2033 [76]

Step-by-step explanation:

please mark me as brainlest

8 0
2 years ago
The length of a shadow of a building is 28m. The distance from the top of the building to the shadow is 38m. Find the height of
AlexFokin [52]
It appears that the Pythagorean theorem can be applied to this problem
  (distance to shadow)² = (height of building)² + (length of shadow)²
  (38 m)² = (height of building)² + (28 m)²
  660 m² = (height of building)²
Then the height of the building is
  height of building = √660 m ≈ 25.7 m
7 0
3 years ago
Other questions:
  • Simplify the expression:
    14·1 answer
  • Ok heres the first one
    5·2 answers
  • Maria has baked a cake for Cathy's birthday. The dimensions of the cake are inches by inches. The cake is going to be cut into s
    13·1 answer
  • Place 16 bingo chips in 4 rows of 4 each. Remove 6 bingo chips, leaving an even number of bingo chips in each row and column. (E
    8·1 answer
  • There are 3 feet in 1 yard, how many yards in 42 feet?
    9·1 answer
  • Can you please help me with 23 and 25 I do not understand!!! Please help
    6·1 answer
  • )::)):):):):):):)):):):):):)):):):):):):)):)JUST HELP
    12·1 answer
  • If f(x) = 2x – 6 and g(x) = 3x + 9, find (f+ g)(x).
    14·1 answer
  • Rewrite in Y = MX +b form show your work -6x+2y=10
    15·2 answers
  • if you think that Andy solved the problem correctly, explain how you can tell he is correct. If not, identify and explain all er
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!