Answer: <u><em>The first number is 8</em></u>
Step-by-step explanation: Let the three No. s be x, y and z respectively
given = x+ y+ z= 72
y=7x
z=7x-18
∴As we know x+ y+ z=72
i.e. x+7x+7x-18=72
15x=72+18=90
15x=90
x=90/15
∴x=8
∴y=7x
7×8=56
∴z=7x-18
56-18=38
∴<u><em>The first no. is x=8</em></u>
<u><em>The second no. is y=7x = 56</em></u>
<u><em>The third no. is z=7x-18 = 38</em></u>
<span>On every type of factoring problem ALWAYS look first for a GCF, a greatest common factor. </span>
Answer:
x=114
Step-by-step explanation:
-11=x/-6+8
-19=x/-6
x=114
Answer: The probability of Dana selecting a hockey card will be a 4/36 or 1/9.
Work:
1.I added all of the cards together.
2.I saw that the number of hockey cards was 4 and divided it by 36 (the total number of cards)
3.Simplified
Answer:
2x - y = -10
Step-by-step explanation:
Standard form: x + y = n
y - 4 = 2x + 6
y = 2x + 6 + 4
y = 2x + 10
2x - y = -10
