Niko uses 12 marshmallows and 8 graham crackers to make 4 s'mores. drag marshmallows and graham crackers into the box to show how many niko needs to make 3 s'mores.

Niko needs 9 marshmallows and 6 graham crackers to make 3 s'mores.

Step-by-step explanation:

Let x be the number of marshmallows , y be the number of graham crackers and z be the number of s'mores.

Then according to given question

Niko uses 12 marshmallows and 8 graham crackers to make 4 s'mores

gives the equation 12x+8y=4z

If we divide whole equation by 4 , we get the quantity of x and y to make z such that

Now to make 3 s'mores, we need to multiply the equation by 3 such that

Thus Niko needs 9 marshmallows and 6 graham crackers to make 3 s'mores.

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

at home andrea has 1 2/3 kilograms of rice

step-by-step explanation: