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balandron [24]
3 years ago
11

Use the rules of significant figures to simplify the following expression: 22.674 • 15.05

Mathematics
1 answer:
ArbitrLikvidat [17]3 years ago
3 0
1. count how many sig figs are in the number with least sig figs
2. multiply
3. cut the result off at the number of sig figs on top


15.05 has 4 sig figs
341.2

C
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HELPPP
Bingel [31]

I'm not sure if it only wants you to find Equation 1 or go further and solve:

x = the number of 5c coins

y = the number of 10c coins

Equation 1: the total number of coins is 65

x + y = 65

total value of $3.80

0.05x + 0.1y = 3.8

<u>Simultaneous Equations</u>

Make one coefficient the same

10 * (0.05x + 0.1y = 3.80 = 0.5x + y = 38

x + y = 65

0.5x + y = 38

Subtract the equations

(x + y) - (0.5x + y)= 65 - 38

(x - 0.5x) + (y - y) = 65 - 38

0.5x = 27

x = 54

Substitute it into the original equation to find y.

x + y = 65

54 + y = 56

y = 65 - 54 = 11

Substitute it into the other equation to check it's right.

0.05x + 0.1y = 3.8

0.05(54) + 0.1(65) = 3.8

x = 54 5c coins

y = 11 10c coins

8 0
3 years ago
Adding and subtracing linear wxpressions 12(−4x+8)−14(8x−12)
Delicious77 [7]

Answer:

-160x+264

Step-by-step explanation:

-48+96x-112x+168

-160+264

3 0
3 years ago
3+6 (2 + 3/6)<br> Can someone help me plssss and show how to too pls
Anna007 [38]
18

I used a calculator so you’ll need someone else to explain my apologies. I’m tried but I wanted to try and help by giving you the answer

4 0
3 years ago
Should the dress code for Pizza Hut employees be enforced? ( BIASED OR UNBIASED)
Sholpan [36]

Answer:

yes

Step-by-step explanation:

Having a dress code is very important for the workers because it makes it much easier to spot them and get the help you food. Plus it keeps the hair out of your food soooo-

++

6 0
3 years ago
Read 2 more answers
Write an expression to represent: Four less than the quotient of a number x and 5.
antoniya [11.8K]

Answer:

\frac{x}{5} - 4

Step-by-step explanation:

You are dividing x by 5 and then subtracting 4.

5 0
3 years ago
Read 2 more answers
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