I will help you ok .<span>7<span>78</span></span><span>=<span><span>71</span><span>78</span></span></span><span>=<span><span>(<span>71</span>)</span><span>(<span>87</span>)</span></span></span><span>=<span><span><span>(7)</span><span>(8)</span></span><span><span>(1)</span><span>(7)</span></span></span></span><span>=<span>567</span></span><span>=<span>8
</span></span><span>7<span>(<span>78</span>)</span></span><span>=<span><span>(<span>71</span>)</span><span>(<span>78</span>)</span></span></span><span>=<span><span><span>(7)</span><span>(7)</span></span><span><span>(1)</span><span>(8)</span></span></span></span><span>=<span>498</span></span><span>(Decimal: 6.125)
</span><span>7−<span>78</span></span><span>=<span><span>71</span>−<span>78</span></span></span><span>=<span><span>71</span>+<span><span>−7</span>8</span></span></span><span>=<span><span>568</span>+<span><span>−7</span>8</span></span></span><span>=<span><span>56+<span>−7</span></span>8</span></span><span>=<span>498</span></span><span>(Decimal: 6.125)
</span><span>7+<span>78</span></span><span>=<span><span>71</span>+<span>78</span></span></span><span>=<span><span>568</span>+<span>78</span></span></span><span>=<span><span>56+7</span>8</span></span><span>=<span>638</span></span>(Decimal: 7.875)<span>
</span>i have adding subtracting , dividing , and multiplying<span> </span> there all your anwser i hope this help<span>xx
</span>
Answer:
3 Minutes 42 Seconds
Step-by-step explanation:
Half of 7 minutes is 3 minutes and 30 seconds, half of 24 seconds is 12 seconds. If you add the halfed times together you get a total of 3 minutes 42 seconds.
Add them to eliminate x terms
x+3y=-7
<u>-x-7y=19 +</u>
0x-4y=12
-4y=12
divide by -4
y=-3
sub back
x+3y=-7
x+3(-3)=-7
x-9=-7
x=2
(x,y)
(2,-3)
Answer:
<em>There are 144 cards in 12 packages</em>
Step-by-step explanation:
<u>Direct Proportion</u>
The number of trading cards is directly proportional to the number of packages. We are given there are 84 cards in 7 packages.
Let x= number of packages, y=total number of cards
The direct variation equation is:
y = m.x
Where m is a constant we need to find by using the given data: y=84 when x=7, thus
84 = 7m
Dividing by 7:
m = 84/7=12
The equation is:
y = 12x
For x = 12 packages:
y = 12*12 = 144 cards
The answer is:
There are 144 cards in 12 packages