Ask question

Ask question

All categories

4 years ago

6

Bob is training for a race,Bob ran 14.6 miles away from his home,then Bob ran9.8miles toward his home, finally Bob ran 5.3miles

away from his home. How far is Bob from his home?

2 answers:

Step2247 [10]4 years ago

6 0

Answer:

The answer is 10.1 miles

miss Akunina [59]4 years ago

3 0

14.6-9.8+5.3=<span>10.1 miles</span>

You might be interested in

Simplify the expression<br> 4a<br> 6(a + b)<br> Enter the correct answer.<br> Someone help plz

shutvik [7]

Answer:

4 7 + 4 6

Explanation:

4 0

3 years ago

Read 2 more answers

Find two numbers that have a sum of -2 and a product of -48 (please show work if possible)

andreev551 [17]

Answer: -8 and 6

Step-by-step explanation:

factors of 48: 1,2,4,6,8,12,24,48

1 x 48

2 x 24

4 x 12

6 x 8

for a negative product, one of the factors must be negative and the other positive.

for two number to have a sum of -2, the greater number must be the negative number, and both numbers should have be two values apart (ex. 6 and 8, 3 and 5, 12 and 14, etc.). In this case, 8 would have to be negative whereas 6 will be left positive.

and then we check:

-8 x 6 = 48

-8 + 6 = -2

5 0

3 years ago

It takes 52 minutes for 5 people to paint 5 walls. How many minutes does it take 20 people to paint 20 walls?

Ainat [17]

It takes them 208 minutes to paint 20 walls.

5 0

3 years ago

Read 2 more answers

an article sells for 415.80. You wish to discount it by 20%. at what price will you offer it after the discount

DENIUS [597]

$332.64
20% of 415.80 is 83.16
415.8-83.16=$332.64

7 0

3 years ago

Read 2 more answers

Which expression is a difference of cubes? 9w^33-y^12 18p^15-q^21 36a^22-b^16 64c^15- a^26

LiRa [457]

we know that

A polynomial in the form $a^{3}-b^{3}$ is called adifference of cubes. Both terms must be a perfect cubes

Let's verify each case to determine the solution to the problem

<u>case A)</u> $9w^{33} -y^{12}$

we know that

$9=3^{2}$ ------> <u>the term is not a perfect cube</u>

$w^{33}=(w^{11})^{3}$ ------> the term is a perfect cube

$y^{12}=(y^{4})^{3}$ ------> the term is a perfect cube

therefore

The expression $9w^{33} -y^{12}$ is not a difference of cubes because the term $9$ is not a perfect cube

<u>case B)</u> $18p^{15} -q^{21}$

we know that

$18=2*3^{2}$ ------> <u>the term is not a perfect cube</u>

$p^{15}=(p^{5})^{3}$ ------> the term is a perfect cube

$q^{21}=(q^{7})^{3}$ ------> the term is a perfect cube

therefore

The expression $18p^{15} -q^{21}$ is not a difference of cubes because the term $18$ is not a perfect cube

<u>case C)</u> $36a^{22} -b^{16}$

we know that

$36=2^{2}*3^{2}$ ------> <u>the term is not a perfect cube</u>

$a^{22}$ ------> <u>the term is not a perfect cube</u>

$b^{16}$ ------> <u>the term is not a perfect cube</u>

therefore

The expression $36a^{22} -b^{16}$ is not a difference of cubes because all terms are not perfect cubes

<u>case D)</u> $64c^{15} -a^{26}$

we know that

$64=2^{6}=(2^{2})^{3}$ ------> the term is a perfect cube

$c^{15}=(c^{5})^{3}$ ------> the term is a perfect cube

$a^{26}$ ------> <u>the term is not a perfect cube</u>

therefore

The expression $64c^{15} -a^{26}$ is not a difference of cubes because the term $a^{26}$ is not a perfect cube

I'm adding a new case so I can better explain the problem

<u>case E)</u> $64c^{15} -d^{27}$

we know that

$64=2^{6}=(2^{2})^{3}$ ------> the term is a perfect cube

$c^{15}=(c^{5})^{3}$ ------> the term is a perfect cube

$d^{27}=(d^{9})^{3}$ ------> the term is a perfect cube

Substitute

$64c^{15} -d^{27}=((2^{2})(c^{5}))^{3}-(d^{9})^{3}$

therefore

The expression $64c^{15} -d^{27}$ is a difference of cubes because all terms are perfect cubes

5 0

3 years ago

Read 2 more answers