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3 years ago

A ball rolled 81 feet in 3 minutes. What was this ball's average speed, in feet per second?

Mathematics

2 answers:

sineoko [7]3 years ago

6 0

Answer:

.45 ft/per sec

5.4 in

Step-by-step explanation:

60*3=180

81/180= .45 ft/per sec

mario62 [17]3 years ago

5 0

Answer:

i already answered but 0.45

Step-by-step explanation:

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Can someone plz help me. How can you find the inequalities of 11/15 and 5/7. Next 5/9 and 7/13. Next 11/15 and 5/7. Lastly 5/9 a

LekaFEV [45]

To make this a little clearer, let's give the pairs of inequalities the same denominator:

Question 1:
 $\frac{11}{15}$ ? $\frac{5}{7}$
First, apply the common denominator to the first fraction:
$(\frac{11}{15})7 \\ \frac{11}{15} * \frac{7}{7} \\ \frac{11*7}{15*7} \\ \frac{77}{105}$
Do the same for the second: $15( \frac{5}{7}) \\ \frac{5}{7}* \frac{15}{15} \\ \frac{5*15}{7*15} \\ \frac{75}{105}$
Nest, compare the two fractions:
$\frac{77}{105} \ \textgreater \ \frac{75}{105}$
Therefore:
$\frac{11}{15}$ > $\frac{5}{7}$

Question Two:
$\frac{5}{9}$ ? $\frac{7}{13}$
Apply the common denominator to fraction one:
$13( \frac{5}{9}) \\ \frac{5}{9} * \frac{13}{13} \\ \frac{5*13}{9*13} \\ \frac{65}{117}$
Fraction two:
$9(\frac{7}{13}) \\ \frac{7}{13} * \frac{9}{9} \\ \frac{7*9}{13*9} \\ \frac{63}{117}$
Evaluate:
$\frac{65}{117}$ > $\frac{63}{117}$
Therefore:
 $\frac{5}{9}$ > $\frac{7}{13}$

Hope this helps!

5 0

3 years ago

Plz help me well mark brainliest if correct!....

LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

B can immediately be eliminated because it has an area of 14.

A and C have an area of 10.

So add the sides.

4 + 4 + 1 + 1 + 2 + 2 + 1 + 3

= 18

A: 3 + 3 + 2 + 2 + 1 + 1 + 1 + 1 =

10 + 4 =

7 0

3 years ago

BaLLatris [955]

Answer:

160 is the answer please tell me if im wrong

5 0

2 years ago

Kirsty bought a new TV. The total cost of the TV was £360, in the sale it has 12.5% discount. What is the new price of the TV?

jasenka [17]

12.5% of 360 is 45
360-45 is 315
Answer is £315

3 0

3 years ago

Terminos semejantes de -7a²(4a-3)

barxatty [35]

Answer:

Yahshbsjjskskkqkosld

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3 years ago