2 years ago

Please Help, Lots of points

Mathematics

1 answer:

Andrei [34K]2 years ago

3 0

Answer:

9 cats

Step-by-step explanation:

x = cat

y = dog

Set up equations.

x + y = 30

4.5x + 8.5y = 219

Multiply first equation by 4.5 and subtract.

4.5x + 4.5y = 135

-(4.5x + 8.5y = 219)

-4y = -84

y = 21

Substitute this y value into the first equation

x + y = 30

x + 21 = 30

x = 9

You might be interested in

What is the square root of: a) 58.82 b) 10

natka813 [3]

Square root of A= 7.66 ( Took the first 2 numbers after the decimal.)
Square root of B= 3.16 (Took the first 2 numbers after the decimal.)
HOPE THIS HELPS! ^_^

7 0

3 years ago

What is the value of q in the equation 5q − 10 = 75?

Kamila [148]

Answer:

should be 17

Step-by-step explanation:

5 0

2 years ago

Emily kicked the ball in 1 straight direction , it went 10 ft reversed direction and come back to her , how is this possible ?

nydimaria [60]

Answer:

She kicked it up

Step-by-step explanation:

How is this math?

3 0

3 years ago

Read 2 more answers

7 + #1. Graph a line to represent the function Y = 4x - 1.

elixir [45]

Root: (1/4, 0)
vertical intercept: (0, -1)

6 0

3 years ago

A professional soccer player kicked a ball across the field. The ball’s height, in meters, is modeled by the function graphed be

pantera1 [17]

Answer:

Hey there!

You can think of the rate of change as the slope of a quadratic function- here we see that it is 9/-3, or - 3.

Let me know if this helps :)

6 0

2 years ago