Answer:
$33.85
Step-by-step explanation:
12.95 x 2 = 25.9
25.9 + 7.95 = 33.85
Answer:
y = 1x + -3
Step-by-step explanation:
The form is y=mx+b where the slope is m and b is the y-intercept. The numbers given are m=1 and b=-3. Plug it into the equation and you get y=1x+-3
Total heads = 10
Total legs = 26
Cat = 4 legs
Birds = 2 legs
------------------------------------
Assumed all birds :
------------------------------------
Total legs = 10 x 2 = 20
------------------------------------
Difference in legs :
------------------------------------
26 - 20 = 6
------------------------------------
Difference in legs between the two animals:
------------------------------------
4 - 2 = 2
------------------------------------
Find number of cats :
------------------------------------
6 ÷ 2 = 3
------------------------------------
Find number of birds :
------------------------------------
10 - 3 = 7
------------------------------------------------------------------------
Answer: There are 3 cats and 7 birds.
------------------------------------------------------------------------
So you have 6x-20 and 4x+30. These angles are perpendicular to each other, meaning together they equal 180 degrees. To solve for this equation add both of the equations together equal to 180.
6x-20+4x+30=180
Now subtract: 30-20= 10 so 180-10= 170
Next add 6x to 4x= 10x
So 170=10x
X=17
Now we use substitution to simplify our answers into numerical form:
6(17)-20= 82 this is for 6x-20
4(17)+30= 98 this is for 4x+30
Hope that helps! :)