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4 years ago

The speed of a car is x miles per hour.

Mathematics

2 answers:

Leviafan [203]4 years ago

7 0

Answer:

y=0.5x

Step-by-step explanation:

stiks02 [169]4 years ago

4 0

y = 0.5x , because car travels x miles in one hour (60 minutes), therefore it will travel half of x miles in half hour

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What is the quotient of 42/3 divided by 4 1/5

Nutka1998 [239]

Answer:

$\large\boxed{4\dfrac{2}{3}\div4\dfrac{1}{5}=1\dfrac{1}{9}}$

Step-by-step explanation:

First step:

Convert the mixed numbers to the improper fractions:

$4\dfrac{2}{3}=\dfrac{4\cdot3+2}{3}=\dfrac{14}{3}\\\\4\dfrac{1}{5}=\dfrac{4\cdot5+1}{5}=\dfrac{21}{5}$

Divide by a fraction is the same as multiply by the reciprocal of this fraction.

Therefore:

$4\dfrac{2}{3}\div4\dfrac{1}{5}=\dfrac{14}{3}\div\dfrac{21}{5}=\dfrac{14\!\!\!\!\!\diagup^2}{3}\cdot\dfrac{5}{21\!\!\!\!\!\diagup_3}=\dfrac{2\cdot5}{3\cdot3}=\dfrac{10}{9}=1\dfrac{1}{9}$

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3 years ago

All of the following expressions are equal except2^-31/8 2^1/2^48

madam [21]

Answer:

(D)8

Explanation:

$\begin{gathered} 2^{-3}=\frac{1}{2^3}=\frac{1}{8} \\ \frac{2^1}{2^4}=\frac{2}{16}=\frac{1}{8} \end{gathered}$

Therefore, every of the option is equal to 1/8 except 8.

The correct choice is D.

6 0

1 year ago

a tree was 17 feet tall when it was planted . it grew 8 times that height in 15 years how much taller is the tree then when it w

m_a_m_a [10]

Answer A tree was 17 feet tall when it was planted it grew eight times that height in 15 years how much taller is the tree than when it was planted

Step-by-step explanation:

3 0

3 years ago

PLEASE HELP!! IT'S IN THE PIC, PYTHAGOREAN THEOREM: a² + b² = c²<br><br>Thanks in advance

notsponge [240]

I think 5 but I can be wrong

8 0

3 years ago

Use an array and partial products to find

creativ13 [48]

Well done mate you’re correct.

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3 years ago