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2 years ago

Help me to solve this too

Mathematics

1 answer:

PSYCHO15rus [73]2 years ago

7 0

Answer:

a) 1

b) 4 integer values

Step-by-step explanation:

b) 2, 3, 4, 5

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Answer:2.41 s

Step-by-step explanation:

Given

Stairwell is at a height of $h=42\ ft$

and Height from where he starts $H=136\ ft$

Total height boy needs to cover is

$=H-h$

$\Rightarrow H-h=136-42=94\ ft$

using

$s=ut+\frac{1}{2}at^2$

where $s=displacement$

$u=initial\ velocity$

$a=acceleration$

$t=time$

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3 years ago

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SCORPION-xisa [38]

Answer: children= 8, adult= 7

Step-by-step explanation:

Let the number of children be x

Let the number of adults be y

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x + y = 15 .......... equation i

Child tickets cost 5$ and adult tickets cost 10$. She then spent a total of 110$. This can be represented as:

5x + 10y = 110 ............. equation ii

Combine both equations

x + y = 15 ........... equation i

5x + 10y = 110 .......... equation ii

Multiply equation I by 5

Multiply equation ii by 1

5(x + y = 15)

1(5x + 10y = 110)

5x + 5y = 75 .......... equation iii

5x + 10y = 110 ........ equation iv

Subtract equation iv from iii

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y = 35/5

y = 7

Number of adults is 7

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x = 15 - 7

x = 8

Number of children is 8

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Step-by-step explanation:

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