Object speed * time= rate
4/5 miles in half hour
4/5(2)=8/5 mph
The measure of QS from the given line is 10
<h3>Addition postulate</h3>
From the given diagram below, we will use the following addition postulate;
QR + RS + ST =QT
Given the following parameters
RT = 15
RS = 7 , and
QT = 18
Substitute
QR + RT =QT
QR + 15 = 18
QR = 18 - 15
QR =3
Determine QS
QS = QR + RS
QS = 3 + 7
QS = 10
Hence the measure of QS from the given line is 10
Learn more on addition postulate here: brainly.com/question/2134445
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6 X 89 =6 x (80 + 9) = (6 x 80)+ (6x9)=480+54=534
Answer:
89.396668... is a rational number