3 years ago

150 people in 5 classes

Mathematics

1 answer:

Firdavs [7]3 years ago

4 0

150 = 5 classes
1 class = 30

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s= -1

Step-by-step explanation:

7= -10s-3

+3 +3

10=-10s

s= -1

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3 years ago

What’s 1746 to the nearest ten

blsea [12.9K]

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1746 rounded to the nearest ten is 1750.

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3 years ago

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Veseljchak [2.6K]

E. 53
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3 years ago

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If john run 2.5 miles everyday, how many miles will he run in a month of 30?

Lapatulllka [165]

Answer:

2,250 miles per day.

Step-by-step explanation:

John runs 2.5 miles per day. In a period of 30 months, you can averagely take 30 days in each month.

So, 30 x 30 = 900 days in 30 months.

To find the number of miles ran in 900 days,

900 x 2.5 = 2,250 miles per day.

Hope this helps.

6 0

2 years ago

The altitude of a triangle is 2 m longer than its base. What are the dimensions of the altitude and the base if thearea of the t

HACTEHA [7]

Step-by-step explanation:

Let base of triangle be x m.

Therefore, altitude =( x + 2)m

$area \: of \: \triangle = \frac{1}{2} \times base \times altitude \\ \\ 40 = \frac{1}{2} \times x \times (x + 2) \\ \\ 80 = {x }^{2} +2x \\ \\ {x}^{2} + 2x - 80 = 0 \\ {x}^{2} + 10x - 8x - 80 \\ x(x + 10) - 8(x + 10) = 0\\ (x + 10)(x - 8) = 0 \\ x + 10 = 0 \: \: or \: \: x - 8 = 0 \\ x = - 10 \: \: or \: \: x = 8 \\ base \: can \: not \: be \: - ve \\ x \neq - 10 \\ x = 8 \\ x + 2 = 8 + 2 = 10 \\$

Therefore

Altitude = 10 m

Base = 8 m

8 0

3 years ago