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xeze [42]
3 years ago
8

Someone do these please!

Mathematics
1 answer:
IgorLugansk [536]3 years ago
7 0

Answer:

4). A) .20 ,   .194   B) the Cost-Co price is better     5)  A)   476.991  , 479.99    

B) 10% is better

Step-by-step explanation:

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Aoife has a jar of nickels and dimes that totals four dollars. if she has 58 coins how many dimes does aoife have?
Sholpan [36]
Call the dimes X ,the nickels Y
So :X+Y=58
0,1X+0,05Y=4
=>X=22 ,Y=36
8 0
4 years ago
Please help ASAP thank you!
Advocard [28]

Answer:

10√30

Step-by-step explanation:

√5*√12*√50

√12=2√3

√50=5√2

2*5√5*√3*√2

10√5*√3*√2

10√5*3*2

10√30

6 0
4 years ago
Read 2 more answers
Solve for a.<br> 5 + 14a = 9a - 5
stira [4]

Since you are solving for a, you want to have a on one side of the equation and the other terms on another side of the equation. It would be easiest to have all the terms with a on the left side of the equation, so that is what we will do.

Subtract 9a from both sides to get a on the left side of the equation.

5 + 5a = -5

Subtract 5 from both sides of the equation to isolate the term with a.

5a = -10

Divide both sides of the equation by 5 to solve for a.

a = -2

3 0
4 years ago
Read 2 more answers
How do you divide integers
Tom [10]

You multiply or divide integers just as you do whole numbers, except you must keep track of the signs. To multiply or divide signed integers, always multiply or divide the absolute values and use these rules to determine the sign of the answer.

<span>
When you multiply two integers with the same signs, the result is always positive. Just multiply the absolute values and make the answer positive.</span>

<span>Positive x positive = positive 
Negative x negative = positive</span>

<span>When you multiply two integers with different signs, the result is always negative. Just multiply the absolute values and make the answer negative.</span>

<span>Positive x negative = negative
Negative x positive = negative</span>

<span>When you divide two integers with the same sign, the result is always positive. Just divide the absolute values and make the answer positive.</span>

<span>Positive ÷ positive = positive
Negative ÷ negative = positive</span>

<span>When you divide two integers with different signs, the result is always negative. Just divide the absolute values and make the answer negative.</span>

5 0
4 years ago
Read 2 more answers
Please help with this question thanks!!
zvonat [6]

Answer:

(-1,4)

Step-by-step explanation:

Step 1) Change both equations to slope intercept form

3x+y=1 ---> y=-3x+1

5x+y=-1 ---> y=-5x-1

Step 2) Plot lines accordingly on graph

Lines intersect at (-1,4)

8 0
3 years ago
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