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
blagie [28]
3 years ago
15

Ryan bought an iPhone and some cases for

Mathematics
2 answers:
kari74 [83]3 years ago
7 0

Answer:

5

Step-by-step explanation:

1245-850=395, 395/79=5

tiny-mole [99]3 years ago
4 0

Answer:

5 cases

Step-by-step explanation:

To find the case amount we must take the iphone out of the equation like this

1245-850 = 395

This leaves us with $395 and if each case costs $79 we must divide like this

395 / 79 = 5

Which leaves us with 5, so that must mean that Ryan bought 5 cases.

Hope this helps ( :

You might be interested in
What happens when the two addends have opposite signs and the number with the larger magnitude (size) is positive?
zimovet [89]

Answer:

The smaller addend is subtracted from the bigger addend

Step-by-step explanation:

Represent the two numbers with a and b such that a > b

So, the mathematical representation will be

+a + (-b)

Open the bracket

+a -b

<em>This implies that the smaller addend (b) is subtracted from the bigger addend (b)</em>

<em></em>

<em>Take for instance; a = 6 and b = 4</em>

<em>This gives</em>

<em></em>+6 + (-4)<em></em>

<em></em>

<em>Open the bracket</em>

<em></em>= +6 - 4<em></em>

<em></em>= 2<em></em>

7 0
3 years ago
A box is being created out of a 15 inch by 10 inch sheet of metal. Equal-sized squares are cutout of the corners, then the sides
ivolga24 [154]

Answer:

Therefore the dimensions of the square should be 0.1528 inch by 0.1528 inch so, the box  has largest volume.

Step-by-step explanation:

Given that,

A box is being created out of a 15 inches by 10 inches sheet of metal.

The length of the one side of the squares which are cut out of the each corners of the metal sheet be x.

The length of the metal box be = (15-2x) inches.

The width of the metal box be =(10-2x) inches

The height of the metal box be =x inches

Then, the volume of the metal box= length×width×height

                                                         =(15-2x)(10-2x)x cubic inches

                                                         =(150x-50x²+4x³) cubic inches

∴ V= 4x³-50x²+15x

Differentiating with respect to x

V'=12x²-100x+15

Again differentiating with respect to x

V''=24x-100

For maximum or minimum value, V'=0

12x²-100x+15=0

Apply quadratic formula x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}, here a=12, b= -100 and c=15

x=\frac{-(-100)\pm\sqrt{(-100)^2-4.12.15}}{2.12}

\Rightarrow x=\frac{100\pm\sqrt{9280}}{2.12}

\Rightarrow x=0.1528,8.18

For x= 8.18, The value of (15-2x) and (10-2x) will negative.

∴x=0.1528 .

Now, V''|_{x=0.1528}=24(0.1528)-100

∴At x=0.1528 inch, the volume of the metal box will be maximum.

Therefore the dimensions of the square should be 0.1528 inch by 0.1528 inch so, the box  has largest volume.

4 0
3 years ago
Which equation represents a proportional relationship?
bonufazy [111]
It's the first one. y = 3x
proportional means they are just some multiple of the other.
4 0
3 years ago
Read 2 more answers
Raychel drove to the mountains last week there was heavy traffic on the way there and on the trip took 12 hours when Raychel dro
nevsk [136]
Suppose that this person drives at r mph going to the mountains, and gets there in 12 hours.  Returning, this person drives at (r+20) mph and gets home in 8 hours.  We don't know the distance yet, but can solve for the initial speed, r, by setting

d = 12r = (r+20)(8).  Solving for r, r=40 mph (going) and (40+20)mph = 60 mph (returning.  Since d=12 r, d = (12 hrs)(40 mph) = 480 miles (answer).
4 0
3 years ago
The two trapezoids in the graph below are similar. Which sequence of transformations proves that the trapezoids are similar?
Hoochie [10]
The answer is B.


Hopes this helps!! :')
3 0
3 years ago
Read 2 more answers
Other questions:
  • Number 3 Show me how you got it
    9·1 answer
  • A.<br> 18<br><br><br> B.<br> 36<br><br><br> C.<br> 72<br><br><br> D.<br><br><br> 216
    13·2 answers
  • A circle has a diameter of 4 inches. A square has a side length of 4 inches. What is true about the areas of these two figures?
    11·1 answer
  • `If I measure from the very top point of one wave to the same top point on the next wave, what have I measured?
    11·1 answer
  • Scientific notation The table shows the amount of money raised by each region the four regions used a total of $ (5.38×10^4) How
    12·1 answer
  • 25 yd. 4 in. Divided by 8
    14·1 answer
  • A C (prima) = 14cm AC= 5cm<br><br><br>Cual es la razón de la homotecia?
    15·1 answer
  • Help me solve this!!!!!!!!!!!!
    12·1 answer
  • Which equation is graphed in the figure?
    11·1 answer
  • Help pls
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!