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3 years ago

11.63 - 6.7 I need the answer.

Mathematics

2 answers:

PilotLPTM [1.2K]3 years ago

5 0

Answer:

5.56. I think that is the answer

Mama L [17]3 years ago

5 0

Answer: 4.93

Step-by-step explanation:

Its mental math

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Use the identity a^3+b^3=(a+b)^3−3ab(a+b) to determine the sum of the cubes of two numbers if the sum of the two numbers is 4 an

Butoxors [25]

$a^3+b^3=(a+b)^3-3ab(a+b)\\\\a+b=4,\ ab=1\\\\\text{Substitute:}\\\\a^3+b^3=(4)^3-3(1)(4)=64-12=52$

5 0

3 years ago

1. Classify the situation as direct or inverse variation.

ki77a [65]

1. and 2. is the same question, so the answer to both is direct variation

3. Direct variation

4. Inverse variation

5. I believe it is Inverse, but I'm not 100% certain

8 0

3 years ago

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Which sentence is incorrect? A. -4 > -7 B. 5/2 = 2.5 C. -2.5<-3 D. 2/5 = -0.4

Ket [755]

Answer:

C -2.5<-3

Step-by-step explanation:

since -3 is lower counting wise with negatives the higher the negative the number the more likely its going to be lesser than the other

3 0

3 years ago

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Lila has 3 cookies. She wants to share them equally with her three friends and have enough for herself. What fraction of a cooki

Aleksandr [31]

Answer:

3/4 of a cookie, if you want a decimal it is 0.75 of a cookie.

Step-by-step explanation:

She has 3 cookies and 3 friends plus herself. So that is 4 people. 3 cookies, divide them by 4 people, which is 3/4, in decimal form it is 0.75

5 0

3 years ago

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In a 24 km race, during which each runner maintains a constant speed throughout, Alice crosses the finish line while Becky is st

mr_godi [17]

Answer:6km

Step-by-step explanation:

Given

when Alice finishes the race Becky is 8km From finishing line

and caitlin 12 km from finishing line.

Suppose t is the time require by Alice to finish the race

and $V_a,V_b,V_c$ be the velocity of alice ,becky and caitlin

thus $t=\frac{24}{V_a}=\frac{24-8}{V_b}=\frac{24-12}{V_c}$

thus $\frac{V_b}{V_c}=\frac{4}{3}$

say t' is time required by beckey to complete 8 km thus

$V_b\times t'=8$

therefore for Caitlin

$V_c\times t'=\frac{8}{V_b}\times V_c=6$

Thus caitlin will cover a distance of 6 km in t' time and 6 km away from finishing.

7 0

3 years ago