Answer:
15 and 27 are composite
Step-by-step explanation:
prime numbers only factor into 1(x) and x(1)
13 = 1(13), 13(1)
15 = 1(15), 3(5), 5(3), 15(1)
17 = 1(17), 17(1)
27 = 1(27), 3(9), 9(3), 27(1)
hope this helps
Rewind the "mind movie" of what happened. She added $74 to her account and then had $192. Back it up by subtracting the $74 from $192.
192 - 74 = 118
Answer:
a) x = -9
b) p = (q - x)/3
Step-by-step explanation:
a) Substitute the values in to the equation
x = 3p + q
x = 3(-2) + -3
x = -6 + -3
x = -9
b) Make p the subject
x = 3p + q
(add 3p to both sides)
x + 3p = q
(subtract x on both sides)
3p = q - x
(divide on both sides)
p = (q - x)/3
So he is paid 46.5 flat every day
he earns 5% of each smart phone he sells
at the time of the problem, smart phones sell for 70 so he earns 5% or 70 or 5/100 of 70 or 1/20 of 70 or 70/20 or 7/2 or 3 and 1/2 or $3.50 per phone he sells
so pay must be at lease 150 so
pay=46.5+ (# of phones times 3.50)
150<u><</u>46.50+(number of pones times 3.50)
solve for number of phones
subtract 46.5 from both sides
103.5<u><</u>(number of phonest imes 3.5)
divdie both sides by 3.5
29.57<u><</u>number of phones
round up since can't sell a fraction of a phone
30
he has to sell at leas 30 phones
<span>Is 1/4(8y -12) equivalent to 2y - 12?
No. 1/4(8y-12) equals out to 2y-3 not 2y-12.
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