Answer:
x=25.3
upper angle: 139.2
lower angle: 32.6
Step-by-step explanation:
4x+38+2x-18=180
add like terms
6x+28=180
subtract 28 on both sides
6x=152
divide by 6 on both sides
x=25.3
Upper angle:
4(25.3)=101.2
101.2+38=139.2
Upper angle= 139.2
Lower angle: 2(25.3)=50.6
50.6-18=32.6
Lower angle: 32.6
Answer: 75%
Step-by-step explanation:
9/12 months are number larger than three. 9/12 simplified is 3/4 and 3/4 is 75%
Answer: 140/3 ft
Step-by-step explanation:
The triangles are similar, so we can set up a proportion.
Answer:
Step-by-step explanation:
Proportion of Heat Loss Between sundown and midnight
Proportion of Heat Loss between midnight and 4 AM
Proportion of Total Heat Already Lost
Proportion of Remaining Heat
Between 4 AM and 5 AM, five-eighths of the remaining heat is lost.
Proportion of Heat Loss between 4 AM and 5 AM=
Therefore, Proportion of Remaining Heat Left
We therefore say that:
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Step-by-step explanation: