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
kolbaska11 [484]
3 years ago
10

Brian and Zack went to the store and bought packs of gum. Brian bought 3 less packs than twice the number zack bought. Together

they bought a total of 30 packs of gum. How many packs did each of them buy?
Mathematics
1 answer:
balu736 [363]3 years ago
3 0

Answer:

  • Zack: 11
  • Brian: 19

Step-by-step explanation:

Let z and b represent the number of packs that Zack and Brian bought, respectively. Then the problem statement tells us ...

  b = 2z -3 . . . . . . . Brian bought 3 fewer than twice what Zack bought

  b + z = 30 . . . . . . they bought a total of 30 packs

Using the first equation to substitute into the second, we have ...

  (2z -3) +z = 30

  3z -3 = 30

  3z = 33 . . . . . . add 3

  z = 11

  b = 2·11 -3 = 22 -3 = 19

_____

<em>Check</em>

  b + z = 19 + 11 = 30 . . . . answer checks OK

Zack bought 11 packs; Brian bought 19 packs of gum.

You might be interested in
A salesman is offered two deals from his boss. Option A is a salary and commission. You will make $300 and a 4% commission. Opti
mel-nik [20]

Answer:

option A

Step-by-step explanation:

goal is short one

3 0
2 years ago
A circle has a diameter of 14 feet. What is the circumference of the circle? Use 3:14 for pie.
Marianna [84]

Answer:

Circumference= 43.96 feet

Step-by-step explanation:

Diameter of the circle= 14 feet

Radius of the circle= 14/2= 7 feet

Circumference of the circle= 2\pi r

As, \pi =\frac{22}{7}=3.14

Circumference:

                          =2*3.14*7\\\\=3.14*14\\\\=43.96feet

The circumference of the circle with the radius= 7 feet is 43.96 feet

6 0
3 years ago
PLEASE HELP MEEEEEE PLEASEEEEEEEE!!!!!! IM TIMED
kotykmax [81]

Answer: -23

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Natalie completed 56 sit-ups. Natalie completed 4 times as many sit-ups as Matthew. How many sit-ups did Matthew complete?14 sit
REY [17]

Answer:

224 sit-ups

Step-by-step explanation:

multiply 56 by 4

8 0
3 years ago
Read 2 more answers
Is 2/3 greater then1/5
Greeley [361]
Yes, it is. To find this out, you need to make the denominators the same. They can both multiply into 15, so we change the denominators to 15. Whatever we do to the bottom, we also have to do to the top.

2/3 = 10/15

1/5 = 3/15

We can then see that 10 is more than 3 :)
8 0
3 years ago
Other questions:
  • The fastest a human has ever run is 27 miles per hour how many miles per minute did the human run
    9·1 answer
  • 15 is 30% of what number?
    12·2 answers
  • The product of -2 and a number minus six is greater than -18
    5·1 answer
  • The time period of a simple pendulum is directly related to the square root of its length. An 8 foot pendulum has a period of 3.
    13·1 answer
  • A graphing calculator is recommended. A function is given. g(x) = x4 − 5x3 − 14x2 (a) Find all the local maximum and minimum val
    12·1 answer
  • Mompoint bought a jacket on sale for 40% off at a department store. The original price was $180. Mompoint must also pay an 8% sa
    15·1 answer
  • Encuentre el resultado de la diferencia de las fracciones: 9 /12 - 2/3=​
    14·1 answer
  • How do u make 24 out of the numbers(7)(7)(7)(5)
    11·2 answers
  • Can someone write 3 + x in a words?
    8·2 answers
  • Can somebody help me find the last three answers of the quartile and interquartile range it’s for tommorow somebody please
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!