Since Mark's brother is five years older than Mark and their combined ages add up to 23 than Mark must be 9.
Since 9 + 14 = 23, and 14 - 9 = 23
Mark brother is 14 but Mark is 9
Mark is 9 years old.
Hope this helps :0
Answer:
13. Parallelogram
14. alternate interior angles (h & a)
same side interior angles (e+d & a)
Step-by-step explanation:
13. Parallelogram: Draw it out with the angles. It helps. It can't be a square, because the side lengths aren't the same (2 lines vs 1 line). It can't be a rectangle because rectangles have 90 degrees and not 152 and 28. It can't be a rhombus because the side lengths in a rhombus must be the same (a rhombus is a square that has been stretched).
14. Look at picture (there might be more than what I wrote in the answer)
X+y=70
x-y=26
add te equations
x+y=70
<u>x-y=26 +</u>
2x+0y=96
2x=96
divide by 2 both sides
x=48
sub back
x+y=70
48+y=70
minus 48 both sides
y=22
the 2 numbers aer 48 and 22
Answer:
Step-by-step explanation:
I cant see it
Answer:
x = 48/7
Step-by-step explanation:
There's two good ways to do this problem.
Option 1:
Translate "x varies directly as y" into the equation y=kx
Then you have to find k. After you "reset" your y=kx equation, fill in k and then solve for x. See image.
Option 2:
Translate "varies directly" into a proportion, which is two fractions equal to each other:
x/y = x/y
Fill in the three numbers given and cross multiply and solve to find the fourth number. See image.