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
Llana [10]
3 years ago
11

Help please math ..??

Mathematics
1 answer:
astraxan [27]3 years ago
8 0

Answer:

(3, - 1)

Step-by-step explanation:

5x - 4y = -11

2x + 3y = -9

Multiply the top equation by 2 and the bottom equation by - 5 to cancel out the x's.

10x - 8y = - 22

- 10x - 15y = 45

Cancel out x's.

-8y = - 22

- 15y = 45

Add like terms.

- 23y = 23

Can't have a negative variable to flip them.

-23 = 23y

Divide.

y = - 1

Input y into one of the equations and solve for x.

2x + 3(-1) = -9

Simplify.

2x -3 = -9

Cancel out -3 by adding 3.

2x = -6

Divide.

x - -3

You might be interested in
What is 2,117 divided by 3.
amm1812
2,117÷3=705. Is your Product
6 0
3 years ago
Read 2 more answers
Find the value of the expression 63 - 21 + (3 x 11)
bixtya [17]

Answer: First solve the parentheses using order of operations. Then add and subtract from left to right.

Demo:

(3 * 11) = 33

Equation now looks like:

63 - 21 + 33

63 - 21 = 42

Equation now looks like:

42 + 33

42 + 33 = 75

The value of this expression is 75.

5 0
3 years ago
Read 2 more answers
Pass a brotha some help :(
nikitadnepr [17]

Answer and Step-by-step explanation:

Distribute the 1p to the y and -6 and distribute the 2 to the 3y and 6.

10y - 50 + 6y + 12

Now, combine like terms.

16y - 38

#teamtrees #PAW (Plant and Water)

7 0
3 years ago
A cone has a diameter of 8 units and a height of 8 units. units, and its volume is Its radius is volume of cubic units. If a sph
aev [14]

The above question is not complete because it was not written and arranged properly

Complete Question

1) A cone has a diameter of 8 units and a height of 8 units. Its radius is 4 units, and its volume is ______ cubic units.

2) A cylinder with the same height and radius as the cone will have a volume ______ of cubic units.

3) If a sphere has the same radius as the cylinder, its volume is ______the volume of the cylinder. Answer: 1) Volume of the cone = 134.04cubic units

2)Volume of the cylinder = 402.12cubic units

3) Volume of the sphere= 268.08 cubic units. Hence, if a sphere has the same radius as the cylinder, its volume is 2/3 times the volume of the cylinder.

Step-by-step explanation:

1) A cone has a diameter of 8 units and a height of 8 units. Its radius is 4 units, and its volume is ______ cubic units.

Volume of a cone = 1/3πr²h

h = 8 units

r = 4 units

Volume = 1/3 × π × 4² × 8

134.04cubic units

2) A cylinder with the same height and radius as the cone will have a volume ______ of cubic units.

Volume of a cylinder = πr²h

Height and radius is the same as that of the cones hence,

h = 8 units

r = 4 units

= π × 4² × 8

= 402.12cubic units.

3) If a sphere has the same radius as the cylinder, its volume is ______the volume of the cylinder.

Volume of a Sphere = 4/3πr³

r = radius of the cylinder = 4 units

Volume of a Sphere = 4/3 × π × 4³

= 268.08 cubic units.

From the above question, we are asked to compare the volume of the sphere with the volume of the cylinder

Volume of the sphere : Volume of the cylinder

268.08 cubic units : 402.12 cubic units

268.08/402.12 = 2/3

Therefore, the volume of the sphere is 2/3 times the volume of the cylinder

6 0
2 years ago
Sydney borrowed $5500 from the bank to pay for her first semester of college. The loan has a simple interest rate of 6% for the
sergij07 [2.7K]

Answer:

$330

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • a 9ft ladder is placed 4.5 feet from the base of a wall. How high up will the ladder reach? Round to the nearest hundredth.
    12·1 answer
  • 3y <= -2x+18
    6·1 answer
  • Factor of 169 and 5x
    7·1 answer
  • H(x)=x2+1 k(x)=x-2<br> (h-k)(3)
    11·1 answer
  • Fing the area of the circle with a radius of 17in. (Use 3.14 for pi)
    13·1 answer
  • The radius of a circle is 9in. Find it’s circumference in terms of
    11·1 answer
  • Nikki saved 15% on a<br> $100 purchase. How much<br> did she pay
    10·1 answer
  • Please help!!! Seriously need it ASAP. Perform the indicted operations: 4{8.2+3.7(4.4×8.8 -18.86)}
    14·1 answer
  • 46°<br> Х<br> x<br> X =<br> degrees.
    13·2 answers
  • 2. Quinnel made 14 shots out of the 40 he took during his first season of basketball.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!