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
lesya [120]
3 years ago
7

Solve for x and solve for y

Mathematics
1 answer:
Amanda [17]3 years ago
5 0

I just noticed it is A

You might be interested in
three bells ring at the intervals of 10 minutes and 20 minutes if they all ring together at 10 clock when will they ring togethe
mario62 [17]

Answer:The LCM of 10, 15, and 20 is 60. After 60 minutes, they ring together again.

Step-by-step explanation:

6 0
2 years ago
Solve the system using substitution and describe your steps. <br> x=y-3 <br> 2x+y=12
Veseljchak [2.6K]
First you plug in for x,

2(y-3)+y=12

Then you solve for y
2y-5+y=12
-10y+y=12
-9y=12
-9y/9=12/-9
y=-1.333333333333333333333333333333333333333333333333333333333

5 0
3 years ago
Lalo has 1,500 minutes per month on his cell phone plan. How many more minutes can he use if he has already talked for 785 minut
Mandarinka [93]
He can use 715 minutes for the rest of the month.
7 0
2 years ago
Read 2 more answers
The length of a rectangle is 4 cm less than it’s width. If the area of the rectangle is 165 cm^2. What are the dimensions of the
Monica [59]

Answer:

The dimensions are 11 cm by 15 cm

Step-by-step explanation:

Area of a rectangle = (length)(width).

Let L represent the length and W the width.

Since L = W - 4, we have

Area of rectangle = (W - 4)W = 165 cm^2.

Thus, w^2 - 4W - 165 = 0.  We can solve for W using the quadratic formula:

a = 1, b = -4 and c = -165.  Thus,

        -(-4) ± √ [ (-4)² - 4(1)(-165) ]

W = ---------------------------------------

                        2

         4 ± √ [16 + 660 ]

W = ------------------------------

                       2

         4 ± √ [ 676 ]                    4 ± 26

W = -----------------------  =   W = -------------  =  W  = 2 ± 13

                  2                                  2

Thus, W is 2 + 13 = 15.  It cannot be negative, so we discard 2 - 13 = -11.

If the width, W, is 15, then the length is 4 less, or L = 11.

The dimensions are 11 cm by 15 cm

6 0
3 years ago
a box of crackers has a volume of 48 cubic inches. what is the volume of a similar box that is smaller by a scale factor of 2/3
earnstyle [38]
For this case what you need to know is that the original volume of the cookie box is:
 V = (w) * (l) * (h)
 Where,
 w: width
 l: long
 h: height.
 We have then:
 V = (w) * (l) * (h) = 48 in ^ 3
 The volume of a similar box is:
 V = (w * (2/3)) * (l * (2/3)) * (h * (2/3))
 We rewrite:
 V = ((w) * (l) * (h)) * ((2/3) * (2/3) * (2/3))
 V = (w) * (l) * (h) * ((2/3) ^ 3)
 V = 48 * ((2/3) ^ 3)
 V = 14.22222222 in ^ 3
 Answer:
 the volume of a similar box that is smaller by a scale factor of 2/3 is:
 V = 14.22222222 in ^ 3
6 0
3 years ago
Other questions:
  • A monument in the shape of a right triangle sits on a rectangular pedestal that is 5 meters high by 11 meters long. The longest
    10·1 answer
  • Members of a public speaking club are competing to see who can recite a speech fastest. Who speaks the most words per minute?
    9·2 answers
  • What n+5n in simplest form
    6·2 answers
  • Can someone help me work through this ??
    5·1 answer
  • Which numbers produce An irrational number when added to 0.4
    5·2 answers
  • A package weighs 4.25 kilograms. How many grams does the package weigh?(Please Show Work :D)
    8·1 answer
  • Cushman Company had $838,000 in sales, sales discounts of $12,570, sales returns and allowances of $18,855, cost of goods sold o
    14·1 answer
  • Find f(3) and interpret its meaning.
    5·1 answer
  • The circumference of a circle is 7 π m What is the area of the circle?​
    6·1 answer
  • The cubic curve y = x'3 + ax'2 + bx + c passes through the point (1,3) and has tangent line y = x - 2 at the point (0,-2). What
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!