Answer:
3x
Step-by-step explanation:
coefficient is the number before the variable
Answer: 1400
Step-by-step explanation: you add 40 and 30 then you times it by 20 because it said " what is the area of the part that's painted blue" it's trying to throw you off by having the other numbers by the window and the door.
Answer:
B) X = 6
Step-by-step explanation:
The figure transformation is a dilation. And the side lengths increased by two.
Answer:
5/12 of cookies left on the plate
Step-by-step explanation:
we have to add to know what part of the dish ate and then subtract it from the total
1/12 + 4/12 + 2/12 =
when we are adding fractions with the same denominator we simply add the above
1 + 4 + 2 = 7
1/12 + 4/12 + 2/12 = 7/12
now to the total of the plate that would be 1 we subtract what they ate
1 - 7/12 =
the whole 1 can be expressed as 12/12 since if we do the 12/12 = 1 account
12/12 - 7/12
for the subtraction with the same denominator the same thing happens as for the sum, we only do it with the top
12 - 7 = 5
12/12 - 7/12 = 5/12
Multpiply first equation by 3 and second by 5 to clear nasty faractions
-13x-6y=21
15x+2y=25
now see which ones we can clear
we can clear y
multiply second equation by 3 and add to the first equation
-13x-6y=21
<u>45x+6y=75 +</u>
32x+0y=96
32x=96
divide both sides by 32
x=3
sub back
15x+2y=25
15(3)+2y=25
45+2y=25
minus 45 from both sides
2y=-20
divide both sides by 2
y=-10
x=3
y=-10
(3,-10)
