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Margaret [11]
2 years ago
13

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 circumference of the circle use 3.24 for pi
never [62]

Step-by-step explanation:

Formula:

d×3.14=C

or

r×3.14×2=C

d=diameter

r=radius

5 0
2 years ago
A line's y -intercept is 10,and its slope is 9 . What is its equation in slope-intercept form?
LenaWriter [7]

Answer:

y = 9x + 10

Step-by-step explanation:

y = mx + b

Here, m is slope and b is y-intercept

y = 9x + 10

3 0
3 years ago
Jack Watkins earns a base salary of $1500 a month, plus a 4% commission on the sales he makes. What is his gross pay of his sale
san4es73 [151]
<span>Jack Watkins earns a base salary of $1500 a month, plus a 4% commission on the sales he makes. What is his gross pay of his sales for the month are $8000. 
solution:
Gross pay=(salary)+(commissions)
base salary=$1500
commission=4%
monthly sales=$8000
commissions earned in cash
=4/100</span>×8000
=$320

thus
Gross salary=320+1500=$1820
5 0
3 years ago
HELP ME PLEASE PLEASE
inn [45]
Answer: x = -6 and y = -9

Explanation:

3 0
3 years ago
Read 2 more answers
[(2x 10) divided by 1/3]+8
mel-nik [20]

Answer: 14.7 (Rounded)

Work: So since (2 x 10) / 1/3 is in parentheses, I'm going to to that first. And since (2 x 10) is in parentheses in a parentheses, I'm going to do that multiplication first. After doing the multiplication, I get 20, and I'm going to divide it by 1/3 since it's in the parentheses. After dividing, I get 6.666..., But I'm going to round it to 6.7. Then, I'm going to add 6.7 by 8, and I got 14.7

<em>I hope this helps, and Happy Holidays! :)</em>

3 0
2 years ago
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