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
galina1969 [7]
2 years ago
13

The sum of two numbers is 41. Double the first number reduced by triple the second

Mathematics
1 answer:
atroni [7]2 years ago
5 0
X+y=41
2x-3y=12

27+14=41
2•27-3•14=12

x=27
y=14
You might be interested in
To solve the equation X - 62 = 123, you would ?
Ratling [72]
X-62=123
+62 +62
_________
x=185
you need to add a positive 62 from each side so -62+62=0 and 123+62=185
therefore, x=185
:Done! hope this helps!
6 0
3 years ago
A city planner designs a park that is a quadrilateral with vertices at J(-1, 1), K (3, 3), L (5, -1), and
Liono4ka [1.6K]

9514 1404 393

Answer:

  83 m

Step-by-step explanation:

The attached diagram shows the lengths of the midlines to be 3.16 and 5.10 units on the coordinate plane. The sum of these is (3.16 +5.10) = 8.26 coordinate plane units. Since each unit on the coordinate plane represents 10 m, the total path length is about ...

  8.26(10 m) = 82.6 m ≈ 83 m

_____

The distance formula will tell you the distances are ...

  AC = √(3² +1²) = √10

  BD = √(5² +1²) = √26

The total path length is about (10 m)(√10 +√26) ≈ 82.61230 m ≈ 83 m.

3 0
2 years ago
n aquarium holding African cichlids is 6 inches higher than it is wide. Its length is 33 inches, and its volume is 9240 cubic in
sukhopar [10]

Answer: Height = 20 inches

Width = 14 inches

Step-by-step explanation:

The aquarium is rectangular. The formula for determining the volume of a rectangular box is expressed as

Volume = LWH

Where L,W and H represents the length, width and height of the box.

The aquarium holding African cichlids is 6 inches higher than it is wide. It means that

H = W + 6

Its length is 33 inches, and its volume is 9240 cubic inches. It means that

9240 = 33W(W + 6)

9240/33 = W(W + 6)

280 = W² + 6W

W² + 6W + (6/2)² = 280 + (6/2)²

(W + 3)² = 280 + 9 = 289

Taking square root of both sides, it becomes

W + 3 = √289 = 17

W = 17 - 3

W = 14

H = W + 6 = 14 + 6

H = 20

3 0
3 years ago
a family has two cars. the first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of
Kryger [21]
Let the number of gallons consumed be the first car be x, and that of the second car, y. Then:
x + y = 50 . . . . . . . (1)
20x + 15y = 850. . . (2)

(1) x 20 => 20x + 20y = 1000 . . . (3)
(2) - (3) => -5y = -150 => y = -150/-5 = 30

From (1), x + 30 = 50 => x = 50 - 30 = 20

Therefore, first car consumed 20 gallons and the second consumed 30 gallons.
3 0
3 years ago
Explain how you can identify a non proportional relationship?
noname [10]
Simply simplify the ratios/fractions into their simplest fraction form and divide the numerator by the denominator. If they are equal, they are in fact proportions, if not, they aren't
5 0
3 years ago
Other questions:
  • A card is randomly selected from a deck of 52 cards. Find the probability that the card is between four and eight (inclusive) or
    14·1 answer
  • (Multiying by a unit fraction. Find the product mentally. (5.6) × 1/8=
    13·1 answer
  • -2y+2=-2(3y+11) how to figure this out
    8·2 answers
  • Please help!!!!!! ASAP
    6·1 answer
  • What is the area of a triangle with vertices at (−4, 1) , ​ (−7, 5) ​ , and ​ (0, 1) ​?
    10·1 answer
  • Find the value of the underlined 10,698 under lined digit is 9
    11·1 answer
  • A baby was born with a weight of 5 pounds and then began to gain 1.25 pounds per month. Write an equation for W,W, in terms of t
    15·1 answer
  • 0.546 = 0.4 + ? + 0.006<br> Please Explain the Answer to me!
    13·1 answer
  • A line drawn on the coordinate plane passes through the points (5, 3) and (9, –13). What is the equation of the line?
    6·1 answer
  • Mr. Poole made snacks in separate gift bags. He gave one each to the 36 seventh grade students going on the field trip. Then he
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!