Can someone pass me the answers my calculator died and some online don't work

Answers

Answer 1

Answer: I've read all of them carefully.
A calculator won't help you do 1-4.
It might be a little bit useful for 5 and 6, but only slightly. If you know your math then you shouldn't have any trouble with those either.

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The ratio of shoes sold to sandals was 5:2.If there were 40sandals sold,how many shoes were sold?

Answers

$5x-\ number\ of\ shoes\n2x-\ number\ of\ sandals\n\n40=2x\ \ \ | divide\ by\ 2\nx=20\n\n5x=5*20=100\n\nThere\ were\ 100\ shoes\ sold.$

Answer:

Emily solved for a part when she should have solved for the whole. 875,000 should be the numerator of the equivalent ratio. 70 x 12,500 is 875,000. So the answer is 100 x 12,500 which is 1,250,000.

Step-by-step explanation:

What is 68/80 simplified

Answers

the answer is 17/20 in its simplest form

You travel between these two mile markers and then find your average speed in miles per hour. Which equation does NOT represent this situation?

Answers

Answer:

The correct option is C.

Step-by-step explanation:

The time in first figure is 3:00 pm and the time in second figure is 4:30 pm.

So total time taken by car is

$4:30-3:00=1:30$

It means total time taken by car is 1.5 hour.

The distance in first figure is 50 miles and the speed in second figure is 155 miles.

So total distance travelled by car is

$155-50=105$

It means total distance travelled by car is 105 miles.

The formula of speed is

$Speed=(Distance)/(Time)$

$Speed=\frac{105\text { miles }}{1.5\text{ hours}}$

Therefore option B represents the solution. Option B is incorrect.

Multiply both sides by 1.5 hours.

$1.5\text{ hours}* Speed=105\text { miles }$

Therefore option D represents the solution. Option D is incorrect.

Divide both sides by speed.

$1.5\text{ hours}=\frac{105\text { miles }}{Speed}$

Therefore option A represents the solution. Option A is incorrect.

Option C can not represent the solution, therefore option C is correct.

The one that does not represent the situation is the equation speed/105=1.5

Prime number definition

Answers

A prime number is a number that has no factors other than ' 1 ' and itself.

A number that has no other divisors besides one and itself. Also a number greater than one.

Can someone please help me with this question!ASAP

Answers

Answer:

I can only say it is not the first one

Step-by-step explanation:

I don't really know the rest of it but I know that the first one is not correct

Solve for x: 3(x + 1) = 2(x - 1)
-5
-4
-2
-1

Answers

The answer would be x=-5

Answer:

D -1

Step-by-step explanation:

3(x+1) = 2(x-1)

Use distributive property and get;

3x+3 = 2x-2

Add 2 to both sides,

3x+5 = 2x+4

Subtract 2x from both sides

1x+5 = 4

Subtract 5 from both sides

1x=-1

x = -1

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