Answer:
2.3
Step-by-step explanation:
2 2/3 × X= 6 1/7
8/3 × X= 43/7
8x/3 =43/7
cross multiply;
56x=129
Divide both sides by 56
56x/56= 129/56
x= 2.3036=2.3
Congruent means they are the same length.
Set both lines equal to each other and solve for x:
x + 5 = 2x -10
Subtract x from both sides:
5 = x -10
Add 10 to both sides:
x = 15
Now you have a value for x, replace x in the equation of the line and solve:
QR = x +5 = 15 +5 = 20
Answer:
40
Step-by-step explanation:
5 days temperature = 100
So the temperature have to add to 500
6 days temperature = 90
500 + ? = 540
?=40
Answer:
1
Step-by-step explanation:
14 - 2 x 7
15 - 3 x 5
GCF of 14 and 15: 1
