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
trasher [3.6K]
2 years ago
11

I need help for the second one

Mathematics
1 answer:
dolphi86 [110]2 years ago
6 0
Equation
(3x21)+(3x15)

Answer
$108
You might be interested in
Simplifying algebraic expressions 7d+d use d=9
Lostsunrise [7]
Hey there Titachely1p09ewg,

Answer:

7d + d = 7 (9) + 9
           = 63 + 9
           = 72

Hope this helps :D

<em>~Natasha♥</em>
5 0
3 years ago
Solve for x: 3x+7 = 22 *
Lorico [155]
3x+7=22
Subtract 7 to both sides
3x=15
Divide by 3
x=5
4 0
2 years ago
Read 2 more answers
Which situation describes a car that can travel $40 miles per gallon of gasoline?
Salsk061 [2.6K]

Answer:

A car can travel 80 miles on 2 gallons of gasoline.

Step-by-step explanation:

8 0
3 years ago
Maya added 5 grams of salt into 20 grams of 50% salt solution. She made ___ grams of ___% salt solution.
AlladinOne [14]
Consider the suggested option:
1) if in 20 gr. of 50% solution given, then pure salt in this mix is 0.5*20=10 gr., and pure water is 0.5*20=10 gr.
2) after Maya added 5 gr. pure salt is 10+5=15 gr. Total mass of mix is 15(pure salt)+10(pure water)=25 gr.
3) new solution is 15/25=0.6 or 60%.
Answer: 25 gr. of 60% salt solution.
7 0
3 years ago
Use the initial term and the recursive formula to find an explicit formula for the sequence an. Write your answer in simplest fo
agasfer [191]

From the recursive rule

a_n = a_{n-1}-13

it follows that

a_{n-1}=a_{n-2}-13 \implies a_n = a_{n-2} - 2\times13

a_{n-2}=a_{n-3}-13 \implies a_n = a_{n-3} - 3\times13

and so on. Notice how the subscript on a on the right side and the coefficient multiplied by 13 add up to n (n - 2 + 2 = n; n - 3 + 3 = n; and so on). If we continue the pattern, we'll end up with

a_n = a_1 + (n-1)\times13

so that the explicit rule for the n-th term in the sequence is

a_n = -2 + 13(n-1) \implies a_n = \boxed{13n-15}

6 0
2 years ago
Other questions:
  • 14.2= -6.8+4.2d (solve)
    14·1 answer
  • C. 13 yd 2 ft 6 in × 15
    14·2 answers
  • If the base of a triangle is 10 and its height is 4, what is its area?
    11·1 answer
  • The whole number and unit fraction of 5 \ 6
    5·2 answers
  • Each student on the trip to cooperstown paid the same amount .the tottal amount collected was $589.pilar paid for her ticket usi
    11·1 answer
  • a 12 foot piece of string is cut into two pieces so that the longer piece is 3 feet longer than twice the shorter piece. find th
    6·1 answer
  • Help! This is from my geometry work!
    13·2 answers
  • The steps below show the incomplete solution to find the value of x for the equation
    5·1 answer
  • Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre
    8·1 answer
  • Find the angle of XYZ give your answer to 1 decimal place
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!