3x-5y=-9 -4x+6y=10 Con método de suma y resta Porfa
1 answer:
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Answer:
Step-by-step explanation:
Since we're given that a batch requires 3 and one fourths cups of sugar, this is written as
If she wants 6.5 batches then we just cross multiply
1 batch=
6.5 batches=x
X=
X=
X=
X=
X=
Answer:
<em>29 minutes more</em>
Step-by-step explanation:
Let m represent minutes
changing the statement to algebra, since the second company charges a different rate at night and weekend we have the equation below;
$19.99 + $0.35m > $29.99
Subtract 19.99 from both sides to isolate m and we have;
$19.99 -$19.99 + $0.35 > $29.99 - $19.99
= $0,35m > $10.00
Divide both side by 0.35 to obtain the value of m;
>
= m > 28.57
<em>m ⩾ 29 minutes</em>
<em>The second company's will be twenty nine minutes or more costlier than the first company</em>