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3 years ago

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Mathematics

1 answer:

aivan3 [116]3 years ago

4 0

Answer:

use desmos irs a graphing caculator it helped me gat all my answear with inequality

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Do Number 20 Please

Luda [366]

2 3/20 ,2 9/20, 2 1/2,2 11/20,2 4/5

5 0

3 years ago

A spinner has three sections. This table shows the results of spinning the arrow on the spinner 80 times.

UNO [17]

The experimental probability of the arrow stopping on Section 2 will be $\rm \frac{3}{8}$ . is the ratio of the favorable event to the total number of events.

<h3>What is probability?</h3>

Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1.

No of arrows given in the different section ;

Section 1=18

Section 2=30

Section 3=32

The probability that the arrow stopping on Section 2 is found as;

$\rm P = \frac{Favourable \ outcomes }{Total \ outcomes } \\\\\ P= \frac{30}{18+30+32} \\\\ P=\frac{30}{80}\\\\ P= \frac{3}{8}$

Hence, the experimental probability of the arrow stopping on Section 2 will be $\rm \frac{3}{8}$ .

More about the probability link is given below.

brainly.com/question/795909

#SPJ1

7 0

2 years ago

Tell whether a triangle can have sides with the

Dmitry [639]

Answer:

$3x+2 \ne x^2 \ne 2x$ for $x = 4$

Step-by-step explanation:

Given

Shape: Triangle

Dimension: 3x + 2, x^2 and 2x

$x = 4$

Required

Determine if it has equal sides

To do this, we simply substitute 4 for x in the given dimensions

3x + 2

$3x + 2 = 3 * 4 + 2$

$3x + 2 = 12 + 2$

$3x + 2 = 14$

x^2

$x^2 = 4^2$

$x^2 = 16$

2x

$2x = 2 * 4$

$2x = 8$

$3x+2 \ne x^2 \ne 2x$ for $x = 4$

8 0

3 years ago

A pea seller had some peas. He sold 40% of his stock and still had 420 peas. Originally, he had how many peas?

Zielflug [23.3K]

100-40= 60%

60% = 0.60

420/0.60 = 700

he had 700 peas

3 0

3 years ago

Read 2 more answers

How many liters each of a 25% acid solution and a 50% acid solution must be used to produce 80 liters of a 40% acid solution?

alina1380 [7]

Answer:

32 and 48 liters

Step-by-step explanation:

Let 25% solution is x liters, then 50% solution is (80 - x) liters.

Acid content is going to be same:

0.25x + 0.5(80 - x) = 80*0.4
0.25x - 0.5x + 40 = 32
0.25x = 8
x = 8/0.25
x = 32 liters

So 32 liters of 25% solution and 80 - 32 = 48 liters of 50% solution

4 0

3 years ago

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