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3 years ago

1. The amount of money Travis earns is given in the table.

Mathematics

2 answers:

Crazy boy [7]3 years ago

6 0

Answer:

Step-by-step explanation:

(3,37.5),(5,62.5)

slope(m) = (y2 - y1) / (x2 - x1)

m = (62.5 - 37.5) / (5 - 3)

m = 25 / 2

m = 12.5 <==== travis earns $ 12.50 per hr

so if he worked 20 hrs......thats 12.5 * 20 = $ 250 <== ur answer

Anastaziya [24]3 years ago

3 0

Answer:

$250

Step-by-step explanation:

The numbers in the table indicate a proportional relationship between earnings and hours worked. Among other things, that means you can find the earnings for 20 hours by using any table values that sum to 20 hours.

For example, 9 hours + 11 hours = 20 hours, so the earnings would be ...

$112.50 +137.50 = $250.00 . . . for 20 hours

You could also use 4×5 hours = 20 hours, so ...

4×$62.50 = $250 . . . for 20 hours

Or, you can figure ...

$37.50/(3 h) = $12.50/h

so the pay for 20 hours is ...

(20 h)×($12.50/h) = $250.00

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solong [7]

Answer:

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3 years ago

An alloy weighing 30 lbs. is 11% tin. The alloy was made by mixing a 15% tin alloy and a 9% tin alloy. How many pounds of each a

Roman55 [17]

Answer:

20 lbs of 9%

10 lbs of 15%

Step-by-step explanation:

x: 9%

y: 15%

x + y = 30

y = 30 - x

0.09x + 0.15y = 0.11(30)

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3 0

3 years ago

3,425,645 rounded to the nearest hundred thousand

Ivan

Answer:

3,400,000

Step-by-step explanation:

refer to attached for reference

in our case, the digit in the hundred thousands place is the number 4.

How we round this digit depends on the digit directly to the right of it (i.e the ten-thousands place).

If the digit to the right is less than 5, then leave the digit in the hundred thousands place the same and make everything else to the right zeros.

if the digit to the right is 5 or greater, then increase the digit in the hundred thousands place by 1 and then make everything else to the right zeros.

in our case, the digit to the right of the hundred thousands place is the number 2, this is less than 5, so we leave 4 the same and make everything esle to the right zero.

i.e. 3,400,000