Answer:
Absolute vale bars- it means anything inside the bars are always positive so to your example the answer would be 5
Step-by-step explanation:
10.5 - 8.7 = 1.8
There is 1.8 feet of pipe left
Answer:
They are both 45 degrees
Step-by-step explanation:
The square in the middle means a right angle (90) and 5 and 6 are equal too so they both equal 45
Set up the equation by writing the number of students in the ratio as a fraction:
3/4= (245-x)/x Cross multiply:
3x= 4(245-x) Multiply on right:
3x= 980-4x Add 4x on both sides:
7x= 980 Divide both sides by 7:
x= 140 this is how many girls there are. And:
245-140= 105= boys
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