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
borishaifa [10]
4 years ago
7

Pedro buys 4 books at the fair for $7 each. Pedro hands the cashier 3 ten dollar bills. how much change would he receive? write

an equation to solve. use c to represent the unknown.
Mathematics
1 answer:
garik1379 [7]4 years ago
8 0
4 x 7 = 28 - 30 = -2. His change is 2 dollars.
You might be interested in
PLEASE HELP ASAP GEOMETRY 20 PTS REAL ANSWERS ONLY
kodGreya [7K]

Answer:

Step-by-step explanation:

Use the Law of Cosines to find the measure of angle A from the lengths of the sides.

A = arccos[(b²+c²-a²)/(2bc)] ≅ 29.9°

B = arccos[(a²+c²-b²)/(2ac)] ≅ 54.8°

C = 180 - A - B = 95.3°

7 0
3 years ago
There are 16 marbles in a bag 12 of them are blue and 4 are yellow. what is the probability of picking a blue marble then a yell
Art [367]

Answer:

1/5

Step-by-step explanation:

the prob that you will pick a blue marble would be 12/16, easy.

then the prob of picking a yellow marble after that would be 4/15 since one marble is already missing. multiply the numerator and denominator of each fraction. so 12 x 4 and 16 x 15 to get 48/240. then divide each by 48 to get 1/5.

3 0
3 years ago
I need help on #11& #8
Musya8 [376]
100 * pi = pi * r^2
Pi cancels on both sides of the equation
So... 100= r^2
= radius is 10
5 0
4 years ago
Factor Completely: x2 − 7x + 6
Arte-miy333 [17]

Answer:

(x-6)(x-1)

Step-by-step explanation:

I am sure about this. You can use to solve it too.

5 0
3 years ago
Read 2 more answers
What ratio would you use to convert 366 minutes to hours
belka [17]
The answer is366:60
3 0
3 years ago
Other questions:
  • What is the turning point of this function?
    6·1 answer
  • 42.5% of what is 20.57
    14·2 answers
  • Some help and/or explanation would be greatly appreciated!! :)
    11·2 answers
  • A Pack of 50 bricks costs £15. A pack of 500 bricks costs £110.
    9·2 answers
  • Ronald went bowling with his friends. He paid $9 to rent shoes, but has a coupon for $3 dollars off the shoes(combine like terms
    15·1 answer
  • Help plz..don’t steal points
    10·2 answers
  • Jack's mother gave him 50 chocolates to give to his friends at his birthday party. He gave 3 chocolates to
    10·1 answer
  • If the graph is reflected across the y-axis, what will be the equation of the new graph?
    13·2 answers
  • To find the area of a triangle, you can use the expression b × h ÷ 2, where b is the base of the triangle and h is its height. W
    11·1 answer
  • Harry charges $4 to babysit for the first hour. For each additional hour, he charges
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!