Sarina is crocheting baby blankets for a craft fair. each blanket requires 1000 m of yarn. she has 5 balls of yarn: 1 ball of pink yarn and 4 balls of blue yarn, 3 of which are equal in length. the expression 1000x−[y+3z+(z−50)] represents how much more yarn sarina needs to crochet the blankets for the fair. explain what each of the following expressions represents: 1000x[y+3z+(z−50)]3z+(z−50)and (z−50).
you!

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

is there any photos or whatever?

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.