4 years ago

Which is the following is the correct 5×(4+9)-2=27. (5×4)+9-2=27. 5×4+9-2-27

2 answers:

7 0

Second answer is correct. you multiple 5x4 and whatever answer you get you add that with 9 and whatever answer you get from that you subtract from 2

jekas [21]4 years ago

3 0

The second one is correct

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Gregory sees an $80.00 jacket on sale at 30% off. How much will it cost after a 7% sales tax is applied?

AlexFokin [52]

Answer:

im on this question rn

Step-by-step explanation:

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3 years ago

Please help and explain!!!!!

FinnZ [79.3K]

Let $x$ be the amount of the 30% alloy and $y$ the amount of the 60% alloy the metalworker will use. However much is used, the final alloy will have a mass of

$x+y=100$

kilograms. For each kg of the 30% alloy used, 0.3 kg is copper; similary, each kg of the 60% alloy contributes 0.6 kg, so that

$0.3x+0.6y=0.54(x+y)=54$

Now,

$x+y=100\implies y=100-x$

$\implies0.3x+0.6(100-x)=54$

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4 years ago

Divide the following fractions 1/4÷1/2

artcher [175]

1/4 / 1/2 =
1/4 x 2/1 = 2/4 = 1/2

7 0

3 years ago

Jeene and her friends were selling cookies. They sold four more boxes second week in the than they did the first week . On the t

Georgia [21]

Answer:

i did 352 x 2 witch was 704 so i believe that it is 704 bc it said they sold double the sale of their second week

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4 years ago

3 and 4 I need help with so confusing

nadya68 [22]

Answer: 3. (3,-3) and 4. (-3,4)

Step-by-step explanation: Number 4 is self explanatory of what they are and number 3, you need to figure out what minus 6 equals -3 and that happens to be 3.

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3 years ago