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3 years ago

Write the number 2.738 correct to 2 decimal places.

Mathematics

2 answers:

Andrei [34K]3 years ago

8 0

Answer:

which way

Step-by-step explanation:

Law Incorporation [45]3 years ago

4 0

Answer: 2.74

Step-by-step explanation:

if the third Number after the decimal (in this case) is 5 or greater than 5 then the second digit after the decimal increases by 1.

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riadik2000 [5.3K]

A: x = 2.4
b: m = 9.6
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3 years ago

Can someone try doing this plz

Svetach [21]

Answer:

Step-by-step explanation:

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3 years ago

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Dima020 [189]

Answer:

Yes

Step-by-step explanation

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3 years ago

A cash box contains $74 made up of quarters, half-dollars, and one-dollar

Strike441 [17]

Answer:

25 one-dollar coins, 16 half-dollar coins, and 164 quarters

Step-by-step explanation:

First, set up equations based on the information given:

$0.25q+0.50h+1.00d=74$

$\displaystyle{h=\frac{3}{5}d+1}$

$q=4(d+h)$

Then, substitute q in the first equation with the expression from the third equation:

$0.25[4(d+h)]+0.50h+1.00d=74\\1d+1h+0.50h+1.00d=74\\2d+1.5h=74$

Next, substitute h in that equation with the expression from the second equation:

$\displaystyle{2d+1.5(\frac{3}{5}d+1)=74}$

$2d+0.9d+1.5=74\\2.9d+1.5=74$

Solve for d, the number of one-dollar coins:

$2.9d+1.5=74\\2.9d=72.5\\d=25$

Substitute 25 for d in the second equation to find h, the number of half-dollar coins:

$\displaystyle{h=\frac{3}{5}d+1}$

$\displaystyle{h=\frac{3}{5}(25)+1}$

$h=15+1\\h=16$

Substitute 25 for d and 16 for h in the third equation to find q, the number of quarters:

$q=4(d+h)\\q=4(25+16)\\q=4(41)\\q=164$

Then, verify that the coins total $74:

$0.25(164)+0.50(16)+1.00(25)=74\\41+8+25=74\\74=74\\\text{Check.}$

Next, verify that the number of half-dollar coins is one more than three-fifths of the number of one-dollar coins:

$\displaystyle{h=\frac{3}{5}d+1}$

$\displaystyle{16=\frac{3}{5}(25)+1}$

$16 = 15 + 1\\16 = 16\\\text{Check.}$

Finally, verify that the number of quarters is four times the number one-dollar and half-dollar coins together:

$q=4(d+h)\\164=4(25+16)\\164=4(41)\\164=164\\\text{Check.}$

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3 years ago

. Evaluate each of the following without using a calculator. Show all steps clearly. - 5^2

Verizon [17]

Answer:

Step-by-step explanation:

-5^2 expanded is -5 x -5

- two negatives equal a positive

-visual representation of 5 x 5

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7 0

2 years ago