Matematyka z plusem 5, zadanie 4 str.75
a)3,1+?=7,5 b)9,15-?=4 c)2,38+?=6 d)8,2-?=4,5 e)4,44+?=6,66 f)?-3,7=0,4

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

You have just applied, and have been approved for a $58,000 mortgage. the rate quoted to you by the lender is 6.1% for a 30 year fixed mortgage. determine how much of your third month’s payment goes towards the principal. $56.65 $56.93 $57.22 $57.51