Answer: x-int: (-1/2,0)
y-int: (0,-1/4)
Step-by-step explanation:
x-5y+3=3x-y+4
x-int: x-5(0)+3=3x-0+4
x+3=3x+4
-2x=1
x=-1/2 ==>(-1/2,0)
y-int: 0-5y+3=3(0)-y+4
-5y+3=-y+4
-1=4y
y=-1/4 ==>(0,-1/4)
Answer: the first number is 19 and second number is -3
Step-by-step explanation:
Let the First number be represented as x
and second number be represented as y
Therefore, A first number plus twice a second number is 13 be expressed as
x + 2y = 13-----equation 1
also Twice the first number plus the second totals 35
2x+ y = 35---- equaton 2
Step 2 --- Solving
x + 2y = 13-----equation 1
2x+ y = 35---- equation 2
By substitution, making x subject of formulae in equation 1
x+ 2y = 13
x= 13 - 2y
putting the value of x= 13- 2y in equation 2
2( 13 - 2y) + y= 35
26 - 4y + y= 35
-4y + y= 35- 26
-3y= 9
y = 9/-3
y= -3
To Find x , using equation 1
x + 2y = 13
x+ 2 x -3= 13
x-6=13
x= 13+6
x= 19
Therefore the first number = 19 and the second number = -3
Answer:
rate is 8 miles per hour and he travels 40 miles per 5 hours
Step-by-step explanation:
The story problem told that i should assume that 1 mile is 1.6 km
so 5km/hr is equal to 8m/h
i got it by multiplying 5 by 1.6 so i can change from the unit km to mile
so about the miles per 5 hours just multiply the 8 mph by 5 so it is 40
40miles per 5hrs
hope i made it clear
Answer:
circumference = 40.82 m
area = 132.67 m²
Step-by-step explanation:
circumference = diameter x π = 13 x 3.14 = 40.82 m
radius = diameter/2 = 13/2 = 6.5
area = πr² = )3.14)(6.5²) = 132.67 m²
Aretha is correct. Since a rhombus a is a quadrilateral with 4 equal sides in terms of length, (forming 4 right angles in each corner), it can be concluded that all squares are rhombuses. However, only some and not all rhombuses are squares because some rhombuses may have equal lengths but all corners don't form right angles.
