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3 years ago

8.45x10^-2 in standard form?

Mathematics

2 answers:

lyudmila [28]3 years ago

6 0

Answer:

My answer to the question is 0.0845.

grin007 [14]3 years ago

4 0

The 10^-2 means move decimal to the left 2 places
0.845 is 1 place
0.0845 is 2

so the standard is 0.0845

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5x + 7y = 17 x + 4y = 19

REY [17]

<h2>Answer:</h2>

5x + 7y = 17 ....(1)

x + 4y = 19 .....(2)

From equation 2

x + 4y = 19

x = 19 - 4y

Putting the value of x in Equation (1)

5(19 - 4y) + 7y = 17

95 - 20y + 7y = 17

- 20y + 7y = 17 - 95

-13y = -78

y = $\frac{78}{13}$

y = 6

Now, putting the value of y in equation (2)

x + 4y = 19

x + 4(6) = 19

x + 24 = 19

x = 19 - 24

x = -5

Therefore, the value of y is 6 and value of x is -5

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3 years ago

Which of these sugar syrup will be the sweetest ? The sugar syrup with,Required to answer. Single choice.Immersive Reader (1 Poi

aleksley [76]

Answer: c. 150g of sugar dissolved in 300ml water

Step-by-step explanation:

The concentration of sugar syrup will decide which syrup is sweetest. Concentration is defined as the amount of solute dissolved per unit volume of solution.

a) 50g of sugar dissolved in 150ml water

$Concentration=\frac{50g}{150ml}=0.33g/ml$

b) 100g of sugar dissolved in 500ml water

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c) 150g of sugar dissolved in 300ml water

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d) 250g of sugar dissolved in 1000ml water

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Thus 150 g of sugar dissolved in 300ml water has highest concentration and is sweetest.

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3 years ago

Problem page the sum of two numbers is 67 and the difference is 11 . what are the numbers?

pav-90 [236]

Try this:
1. sum of numbers is x+y=67, the difference between them is x-y=11
2. it is possible to make up and resolve the system:
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3 years ago

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Lelu [443]

Answer:

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it is very close to the 150 line and the option closest to 150 is 148

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