The exercise is apparently directed toward getting you to group the positive integers together and the negative integers together before you work out the difference. Doing that gives you ...
a) (10 +5) -19
b) = 15 -19
= -4
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Personally, I wouldn't do that <em>for this problem</em>. If you do the arithmetic in order, it seems easier to me because you're only doing single-digit arithmetic after the first sum.
= (10 -19) +5
= -9 +5
= -4
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The idea is that there are different stratgies that you can employ to simplify your work and reduce errors. Grouping positive and negative numbers together is one such strategy. Arranging the sums so they almost cancel is another strategy you can use.
P= -8, 3
q= -3, 3
r= 1, 6
s= -4, 6
Answer:
x=6
Step-by-step explanation:
4(3+x)=36
12+4x=36
4x=36-12
4x=24
x=6
Proof: 4(3+x)=36
4(3+6)=36
12+24=36
36=36
Hope it helps
I don’t see any images but any angle measured less than 90 degrees is an acute angle
9514 1404 393
Answer:
AB = 4
∠E = 30°
Step-by-step explanation:
Side AD is 4 times the length of corresponding side EH, so we expect side AB to be 4 times the length of side EF.
AB = 4·EF = 4·1
AB = 4
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Angle E will have the same measure as corresponding angle A.
angle E = 30°
