Subsitution
4x+y=210
minus 4x both sides
y=210-4x
sub 210-4x for y in other equation
3x+2(210-4x)=195
3x+420-8x=195
-5x+420=195
minus 420 both sides
-5x=-225
divide both sides by -5
x=45
sub back
y=210-4x
y=210-4(45)
y=210-180
y=30
x=45
y=30
(x,y)
(45,30)
The answer is D. (hope this helps :)
Answer:
∠ KLJ = 70°
Step-by-step explanation:
The segment KL joins the midpoints of 2 sides of the triangle and is therefore parallel to the third side HG , then
∠ KLJ and ∠ HGL are corresponding angles and are congruent , so
∠ KLJ = 70°
9514 1404 393
Answer:
310 calories (120 from fat)
Step-by-step explanation:
A 12-inch pizza has double the diameter of the 6-inch pizza, so will have 2² = 4 times the area. 1/8 of that pizza will have 4/8 = 1/2 the area of the personal pizza. If calories are proportional to the area, then the slice will have ...
(1/2)(620 calories) = 310 calories . . . in 1 slice of 12-in pizza
Well, first you'll need to turn all of the fractions into decimals. You do this by diving the numbers by eachother.
So,
7/12 = .58333
3/4 = .75
2/3 = .66666666......7
5/6 = .83333333
2/4 = .5
Now, you have to figure out which decimal is smaller then .58333. By, looking at these decimals, you'll see that 2/4 is less then 7/12.
I hope this helps!
