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
egoroff_w [7]
3 years ago
11

Greg needs at least $1.60 in stamps to mail a package. He has 28cent stamps and 4cent stamps. He can use no more than twenty 4ce

nt stamps as he only has one book left.
Write a system of linear inequalities to represent this situation.
Mathematics
1 answer:
lapo4ka [179]3 years ago
7 0

19 4-cent stamps and 3 28-cent stamps should be used.

Given that Greg needs at least $ 1.60 in stamps to mail a package, and he has 28cent stamps and 4cent stamps, and he can use no more than twenty 4cent stamps as he only has one book left, to determine how many stamps to use should be made the following calculation, through a linear function:

  • (0.04 x 20) + 0.28X = 1.60
  • 0.80 + 0.28X = 1.60
  • 0.28X = 1.60 - 0.80
  • 0.28X = 0.80
  • X = 0.8 / 0.28
  • X = 2.85

  • (3 x 0.28) + 0.04X = 1.60
  • 0.84 + 0.04X = 1.60
  • 0.04X = 1.60 - 0.84
  • 0.04X = 0.76
  • X = 0.76 / 0.04
  • X = 19

Therefore, 19 4-cent stamps and 3 28-cent stamps should be used.

Learn more in brainly.com/question/15325318

You might be interested in
Combine likes terms to create an equivalent expression 1/7 - 3(3/7h -2/7)
Anastasy [175]

\frac{1}{7} -3(\frac{3}{7}h -\frac{2}{7}) = \frac{7-9h}{7}

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

\frac{1}{7} -3(\frac{3}{7}h -\frac{2}{7})

We have to combine the like terms

From given expression,

\frac{1}{7} -3(\frac{3}{7}h -\frac{2}{7})

By distributive property,

The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.

a(b + c) = ab + bc

Therefore,

Solve for brackets using distributive property

\frac{1}{7} - (3 \times \frac{3}{7}h) + (3 \times \frac{2}{7})\\\\\frac{1}{7} - \frac{9h}{7} + \frac{6}{7}

Add 1/7 and 6/7

\frac{1}{7} + \frac{6}{7} -\frac{9h}{7}\\\\\frac{1+6}{7} -\frac{9h}{7}\\\\Simplify\\\\\frac{7}{7}-\frac{9h}{7}\\\\1-\frac{9h}{7}\\\\Simplify\\\\\frac{7-9h}{7}

Thus the equivalent expression is found

5 0
3 years ago
What are the zeros of the polynomial function f(x) = x^3-10x^2+24x
Ludmilka [50]
Replace F(x) with y
y=x^3-10x^2+24x
To find the roots replace y with 0.
0=x^3-10x^2-24x
Rewrite the equation as
x^3-10x^2+24x=0
Factor the left side
x(x-6)(x-4)=0
The solution is a result of
x=0, x-6=0, and x-4=0

The answer is:
x=0, 6, 4
3 0
3 years ago
Question
maria [59]

Answer:

y = m x + b equation of a straight line

m m' = -1    condition for perpendicular lines

If y = 4 x - 7     then m = 4 so m' = -.25

Y = -.25 X + A      we need to find A

A = Y + .25 * 8 = 2 + 2 = 4

Y = -.25 X + 4

Check:

2 = -.25 * 8 + 4 = -2 + 4 = 2

3 0
3 years ago
If sin x = 0.5 what is the value of cos X?<br>round the value to the nearest thousandth
Mariana [72]
Cos(arcsin(0.5)) = 0.866
8 0
3 years ago
Read 2 more answers
Solve for y py+qy=-4y+8
Dahasolnce [82]

Answer:

y = 8/p+q+4.

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Please please help! Find the area of the shaded sector. Leave your answer in terms of pi.
    12·2 answers
  • A flower show has an inventory of 60 tulips and 100 roses. If T represents tulips and R represents roses, which of the following
    7·1 answer
  • 2y+2=4x-6 in slope intercept form
    9·1 answer
  • The figure is the net for a rectangular prism.
    15·1 answer
  • WHAT IS THE ANSWER -8-X=X-4X
    10·2 answers
  • I need help with this (Please add work if possible), It would really help me a lot right now
    9·1 answer
  • Two ratios that are equivalent to 2 : 9
    7·2 answers
  • I need help pleaseee):
    8·1 answer
  • I would like to thank the people that help out in the math area, I’ve fully passed my math classes that I needed to graduate bec
    12·2 answers
  • Pleasee helppp meeee withhh thisssss
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!