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S_A_V [24]
2 years ago
13

Multiply mentally. 0.32 × 300

Mathematics
1 answer:
zhannawk [14.2K]2 years ago
8 0
I would do it like this:

0.1 of 300 is 30, right?
then 0.3 = 3 * 30 = 90, easy...

now <span>hundredth part:</span>
300 * 0.01 = 3,
0.02 = 2 * 0.01 = 6

90 + 6  = 96
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Consider the equation below (in screenshot)
frozen [14]

The <em>approximate</em> solution of the equation shown in the picture is x ≈ 39 / 8 (Right choice: B).

<h3>How to find an approximate solution of a one-variable equation</h3>

The solution of the equation is between x = 4 and x = 5. Now we begin by evaluating each side of the expression (f(x) = x² - 5 · x + 4, g(x) = 2 / (x - 1)) at the average of x = 4 and x = 5.

x = (4 + 5) / 2

x = 4.5

f(4.5) = 4.5² - 5 · 4.5 + 1

f(4.5) = - 5 / 4

g(4.5) = 2 / (4.5 - 1)

g(4.5) = 4 / 7

The solution of the equation is between x = 4.5 and x = 5, then we evaluate at the average:

x = (4.5 + 5) / 2

x = 4.75

f(4.75) = 4.75² - 5 · 4.75 + 1

f(4.75) = - 3 / 16

g(4.75) = 2 / (4.75 - 1)

g(4.75) = 8 / 15

The solution of the equation is between x = 4.75 and x = 5, then we evaluate at the average:

x = (4.75 + 5) / 2

x = 4.875

f(4.875) = 4.875² - 5 · 4.875 + 1

f(4.875) = 25 / 64

g(4.875) = 2 / (4.875 - 1)

g(4.875) = 16 / 31

The <em>approximate</em> solution of the equation shown in the picture is x ≈ 39 / 8 (Right choice: B).

To learn more on successive approximations: brainly.com/question/27191494

#SPJ1

7 0
1 year ago
Which of the following statements best describe tge positive solution of the equation x2=2
777dan777 [17]
X is obviously 1
1x2=2
Entao...(So...)
Please mark as brainliest
4 0
2 years ago
N 1968, it cost $54,000 for a 30-second commercial during the Super Bowl. In 1973, the cost for a 30-second commercial was $88,0
Yuri [45]

Answer:

In 5 years, the price increased about 30%.

I am not good at perentages, so correct me if I'm wrong. Also this is an estimation, not the exact percentage.

6 0
2 years ago
When do you need to use two number lines to compare two fractions
Nat2105 [25]
When your not sure if the fraction is the same
5 0
2 years ago
15 ) 2,145 please help I cant understand it​
Alika [10]
Sorry but there are no photos or anything, please post a photo or something so I can answer your question!
8 0
3 years ago
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