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Elena L [17]
3 years ago
8

Help if good at math

Mathematics
2 answers:
tatyana61 [14]3 years ago
7 0

Hey!

Hope this helps....

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

For Question 2: 6+3+n=12

This is because we know that there is a combined total of 12, so it has to equal 12 (which cancels out C), we also know that the question is not saying anything that implys that we are multiply anything thing (which cancels out B, and D), so we are only left with A.) 6+3+n=12


For Question 4: 2 (Fraction 2 over 3)

This is because when we substitute all those choices in for y, we get...

2/(3*(3/8)) ~ 1.77778

2/(3*(5/12)) = 1.6

2/(3*(11/12)) ~ 0.727273

2/(3*(8/3)) = 0.25

^^^^ I got 8/3 from A (b/c) > ((A*c)+b)/c

(And we know 1/4 = 0.25)

Mariana [72]3 years ago
3 0
Question 2 would be 6+3+n=12

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arlik [135]
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4 0
2 years ago
John can mow a lawn in 80 minutes. Rocky can mow the same lawn in 120 minutes. How long does it take for both John and Rocky to
mario62 [17]

Answer: it will take them 48 minutes.

Step-by-step explanation:

John can mow a lawn in 80 minutes. This means that the rate at which he moans the lawn per minute is 1/80

Rocky can mow the same lawn in 120 minutes. This means that the rate at which Rocky can mow the same lawn per minute is 1/120

If they work together, they would work simultaneously and their individual rates are additive. This means that their combined working rate would be

1/80 + 1/120 = 200/9600 = 1/48

Assuming it takes t hours for both of them to clean the room working together, the working rate per hour would be 1/t. Therefore,

1/48 = 1/t

t = 48 minutes

4 0
2 years ago
Archie is building a model of the Titanic. He is using a scale factor where 2 inches represents 50 feet. If the Titanic was 882.
patriot [66]

Answer:

A:8.73 inches

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Kallie is selling lemonade and ice pops to raise money for a trip to the local water park. A cup of lemonade costs $0.75, and
qaws [65]

Answer:

1.25x+0.75y>25

x+y>20

Explanation:

Selling 20 cups of lemonade and 15 ice pops will raise enough money to go to the water park.

0.75x+1.25y≥25

8 0
3 years ago
Pleaseeeee helppppp ASAPPPPP
Dominik [7]

Hello.

To find the slope, use the formula:

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

Note: The 2s and 1s are NOT exponents or constants. They are simply markers.

So:

m= (5-(-4)) / (2-0)

m= (5+4) / 2

m = 9/2

Note: The order of the coordinates don't matter as long as y2 is aligned with x2 etc.

Example: (okay)

m= ((-4)-5) / (0-2)

m= -9/ -2

m= 9/2 because a negative multiplied or divided by a negative makes a positive.

Now, let's see what's not okay:

(2,5)(0,-4)

m= (5-(-4)) / (0-2)

NOT. OKAY. since the 1s and 2s aren't aligned.

Hope that helped.

**************************

Disclaimer:

Always double check with a reliable source, as mistakes can be made.

7 0
3 years ago
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