Answer:
x=2, y=1. (2, 1).
Step-by-step explanation:
y=3x-5
6x+3y=15
-----------------
6x+3(3x-5)=15
6x+9x-15=15
15x-15=15
15x=15+15
15x=30
x=30/15
x=2
y=3(2)-5=6-5=1
Answer:
24
Step-by-step explanation:
the area of white board = (2×12) ×4 = 96 sq in.
the area of post-it = 2×2 = 4 sq in
so, numbers of post-it = 96/4 = 24
Answer:
30 degrees
Step-by-step explanation:
This is an isosceles triangle having 2 equal sides and 2 equal base angles.
since the measurement of all the internal angles of the triangle is 180 degrees and we know that each base angle is 75 degrees
solving for x:
75 + 75 + x = 180 degrees
150 + x = 180
x = 180 - 150
x = 30 degrees
Answer:
lower bound: 315 litres
upper bound: 324 litres
Step-by-step explanation:
The following rules apply:
- if the last digit of the number is 1, 2, 3, or 4; it is rounded down
- if the last digit of the number is 5, 6, 7, 8, or 9.
; it is rounded up
So:
314 is rounded to 310
315 is rounded to 320
324 is rounded to 320
325 is rounded to 330
Answer:
1. $6.00 to 95 cents = 6.32
2. 3 hours to 35 minutes = 5.14
3. 42 inches to 2 feet = 1.75
Step-by-step explanation:
Given
$6.00 to 95 cents
3 hours to 35 minutes
42 inches to 2 feet
Required
Express in 2 decimal places
1. $6.00 to 95 cents
Express as ratio
Convert dollars to cents
Convert ratio to division
Approximate
2. 3 hours to 35 minutes
Express as ratio
Convert hours to minutes
Convert ratio to division
Approximate
3. 42 inches to 2 feet
Express as ratio
Convert feet to inches
Convert ratio to division