Can you please help me with these ratios?

1 answer:

6 0

Okay, so, for Problem number 1, we see that 30:36 and then we have 5:? Well, to get the five, we divided by 6. So that means we have to do the same thing to the 36 to make the ratios equivalent (equal to) each other. Final Answer: 6

For number 2, it’s a little different. We have what our ratio is equal to, but not the entire starting ratio. However, if we look we see that we have a 6 in the first part and a 3 in the second. That must mean that we divided the 6 by 2 to get the 3. 8 divided by 2 is equal to 4, so our final answer would be 8.

In number 3, we multiplied by 2, because 2x2=4. So we would multiply the 1 by 2 to get that blank space. Final Answer: 2

For number 4, we multiplied by 5. Now we just have to multiply 2 by 5 to get the answer, which is 10.

Lastly on number 5, we are multiplying by 2. To find the blank space, we have to do the “invers operation” which is the opposite operation. So instead of multiplication, we’ll use division. We are going to divide 18 by 2 to get the blank spot. Final answer: 9

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A sign at a bakery show s8 cookies for $10 and 12 cookies for $16. Find the unit price to the nearest cent (hundtreth) for each

Alja [10]

Answer:

8 cookies: 1 cookie =$1.25

12 cookies: 1 cookie =$1.33

Step-by-step explanation:

The formula for price per unit is : $\frac{price}{unit}$

Lets first work out the price per unit for the 8 cookies. You can do this by dividing the price of 10 by the amount of 8, this gives you $1.25. This means that the price per cookie is $1.25.

Now to work out the price per cookie for 12 cookies. You can do this by dividing the price of 16 by the amount of 12, this gives you $1.33. This means that the price per cookie for this offer is $1.33.

1) Divide 10 by 8.

$10/8=1.25$