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Jobisdone [24]
3 years ago
9

Andy is two-fifths of Ruth's age. If Ruth is ten, how old is Andy? Type just the number in the box.

Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
7 0

Answer:

Andy is 4 years old.

Step-by-step explanation:

Given:

Ruth age = 10

We need to find Andy age.

Let the age of Andy be x.

Also given Andy is two-fifths of Ruth's age.

Expressing the above statement in expression form we get

x= \frac{2}{5}\times Ruth's\ age= \frac{2}{5}\times 10 = 4

Hence Andy is 4 years old.

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Find the difference between 8/10 and -2 Show all calculations in your final answer.
valkas [14]
=2 4/5

8/10+2

2+8/10=2 8/10

4/5- -2/1

(4x1)-(-2x5) divided by 5x1

=4- -10 divided by 5

=14/5

=2 4/5

5 0
3 years ago
Pls help me to do the 1st question
serious [3.7K]

Answer:

a) both have same distance

b) second park has a larger area

Step-by-step explanation:

a) park a: circumference is

75+75+30+ pi*30( the diameter of the inward semi circle is 30)

be also has the same perimeter because the diameter of outward semi circle is also 30

b) in the first park, the semi circle area is cut out

in the second its part of the park

4 0
3 years ago
Please assist me with these problems​
blondinia [14]

Answer:

The function of f(x) is 20 for the middle problem idk the others

Step-by-step explanation:

3 0
3 years ago
this year, the winner of the new york marathon ran the 8 kilometer event in 24 minutes. what is the runners unit rate
DedPeter [7]
Based on the given situation above, the given values are 8 kilometers and 24 minutes. To simplify these values, we will come up with the result of 1 km in 3 minutes. Therefore, the winner of the New York marathon ran 0.33 kms per one minute so the runners unit rate is 0.33kms/minute. 
3 0
3 years ago
Pyramid P is similar to pyramid Q. The volume of pyramid P is 980 c m cubed, and the volume of pyramid Q is 3307.5 c m cubed. Wh
jeka57 [31]

Answer:

The scale factor is \frac{3}{2}

Step-by-step explanation:

The volume of the original prism is V_P=980cm^3

The volume of the dilated prism is V_Q=3307.5cm^3

Let the scale factor be k.

To find the volume of the dilated prism, we multiplied by k^3.

\Rightarrow 980k^3=3307.5

\Rightarrow k^3=\frac{3307.5}{980}

\Rightarrow k^3=\frac{27}{8}

\Rightarrow k=\sqrt[3]{\frac{27}{8}}

\Rightarrow k=\frac{3}{2}

8 0
3 years ago
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