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2 years ago

Lena spins the spinner once. What is probability that she will land on

Mathematics

1 answer:

mestny [16]2 years ago

4 0

Answer:

$\frac{2}{5}$

Step-by-step explanation:

These individual slices are equal size, so they have an equal chance of being landed on.

There are 4 white slices out of the 10 total slices.

This means there's a $\frac{4}{10}$ chance Lena will land on white.

$\frac{4}{10}$ simplified is $\frac{2}{5}$ .

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Answer- 2 hours

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3 years ago

Jonah is going to the store to buy candles. Small candles cost $2.50 and large candles cost $7.00. He needs to buy at least 20 c

artcher [175]

The system of linear inequalities are:

$a + b \geq 20\\\\2.50a + 7b\leq 80$

Solution:

Let "a" be the number of small candles bought

Let "b" be the number of large candles bought

He needs to buy at least 20 candles

Therefore, number of small candles and number of large candles bought must be at least 20

Thus, we frame a inequality as:

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"at least" means greater than or equal to

Here, we used "greater or equal to" symbol because, he can buy 20 candles or more than 20 candles also

From given,

Cost of 1 small candle = $ 2.50

Cost of 1 large candle = $ 7

He can spend no more than 80 dollars

Which means, he spend maximum 80 dollars or less than 80 dollars also

So we have to use "less than or equal to" symbol

Thus, we frame a inequality as:

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Thus the system of linear inequalities are:

$a + b \geq 20\\\\2.50a + 7b\leq 80$

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2 years ago

What are the answers for 2, 3 , and 4? That’s it

PIT_PIT [208]

Answer:

1. Formula: b * h ÷ 2

12 * 3 = 36 ÷ 2 = 18 in^2

2. Formula: b * h ÷ 2

5 * 8 = 40 ÷ 2 = 20 ft^2

I could only help on two. Hope it helps though! =)

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2 years ago