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
Makovka662 [10]
2 years ago
7

Dave has $15 to spend on an $8 book and two birthday cards (c) for his friends. how much can he spend on each card if he buys th

e same card for each friend?
Mathematics
1 answer:
Olegator [25]2 years ago
4 0
<span>Funds = Expenses
Funds is $15, Expenses are the book and the two cards. We know how much the book costs ($8). We do not know how much each card costs, so we'll call that "x".
$15 = $8 + 2x
Subtract $8 from both sides of equation: $15 - $8 = $8 - $8 + 2x
Simplify: $7 = 2x
Divide both sides of the equation by 2: $7/2 = 2x/2
Simplify: $3.50 = x
So, each card costs $3.50</span>
You might be interested in
If the function rule is to divide by 10, and there is an output value is 7.2, what is the input value?
Sergeeva-Olga [200]
The answer is:  "72" .
______________________________________________
 (input value, or "x")  / 10 = y  = f(x);

When y = 7.2, what is the value of "x" ?


x / 10 = 7.2 ;

x = (7.2) * 10 = 72 .
_______________________
6 0
3 years ago
24 students in a class took an alegebra test. If 18 passed, what precentage passed.
Sever21 [200]

Answer:

75%

Step-by-step explanation:

What percent of 24 is 18?

24x = 18

x = 18/24 = 3/4 = 0.75 = 75% passed

3 0
3 years ago
Read 2 more answers
Please it’s an emergency
taurus [48]

Answer: C

Step-by-step explanation:

Okay first set a comparison since the two triangles are similar

x-1/20=x-1+27/3x+8

x-1/20 = x+26/3x+8

cross multiply

20x+520=3x^2+8x-3x-8

3x^2-15x-528=0

3(x^2-5x-176)=0

im kinda lazy to factor this out so i used an online calculator right here but factor it out like a good kid

x=16, x=-11

it has to be positive so x=16

C

6 0
2 years ago
Which is the graph of y =-3StartRoot x EndRoot ?
denis-greek [22]

Answer:

3rd graph or C would be correct

Step-by-step explanation:

Took test on edge

8 0
3 years ago
What is the initial value.
GrogVix [38]
The function shown in the graph is a linear function, for a given linear function, the initial value is obtained at y-intercept. The y-intercept is the point where the graph cuts the y-axis. At this point the value of x is zero. Thus from the graph given, the point x=0 at y=2, hence the initial value is y=2.
Answer: y=2
6 0
3 years ago
Other questions:
  • The vertex form of the equation of a parabola is y=3(x-40)^2-22. What is the standard form of the equation?
    9·1 answer
  • Alec has 2 comic books. Shereen has c times as many comic books as Alec. Write an expression that shows how many comic books She
    11·1 answer
  • 11 + (3)(9) Step 1: 11 + (9)(3) Step 2: (11 + 9)(3) Step 3: 20(3) Step 4: 60 Analyze the work to find the error.
    8·2 answers
  • Yo i need a high schoolers help on this math!
    6·1 answer
  • See image for question.<br><br>Please show workings and diagrams.​
    6·2 answers
  • What is 119.6<br><img src="https://tex.z-dn.net/?f=%20%5Cdiv%20" id="TexFormula1" title=" \div " alt=" \div " align="absmiddle"
    13·1 answer
  • Ranking brainliest if correct
    13·1 answer
  • A 1x1 square and an n-tiling is a group of n tiles placed so that every tile is contiguous along at least one side to another ti
    7·1 answer
  • Saved $500 from his summer job so he would have spending money during the school year. He withdraws $12 from his account each we
    13·1 answer
  • 64 in the ratio 7 : 1
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!