Two negatives make a positive so, -13 - (-49) equals -13 + 49, or 49-13, they are all the same thing, all equal to 36.
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Answer:
Dawn has $1670 in account 1 and $1570 in account 2.
Step-by-step explanation:
Dawn can multiply the second equation by 8 and add 7 times the first equation.
8(3/8A +7/8B) +7(A -B) = 8(2000) +7(100)
10A = 16,700
A = 1670
B = 1570 . . . . 100 less than A
Dawn has $1670 in account 1 and $1570 in account 2.
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<em>Check</em>
3/8(1670) +7/8(1570) = 626.25 +1373.75 = 2000
Except there are values you want to substitute into the expression, this is what your answer looks like:
Answer:
B) Write out the relation in an x-y table and check that each x-value corresponds to the only one x - value
Answer:
Step-by-step explanation:
area of one triangle=(1/2)×6×4=12 m²
area of four triangles=4×12=48 m²
area of square=6×6=36 m²
total area=48+36=84 m²
