Answer:
15 ft3
Step-by-step explanation:
6×5×1/2=15, cause 5x6=30 and 1/2 of 30 is 15
Answer:
You got about 52 (~51.975) questions right on your chemistry exam
You got a 93.1% on your biology exam
Step-by-step explanation:
55 multiplied by 0.945 gives you about 52
And for the second part just divide 54/58 to get the percentage
Answer:
Mary has £20 and Tom has £16
Step-by-step explanation:
Represent their current respective money amounts by m and t.
Then m + t = £36, but also m/2 + 2t = £42.
Multiplying the second equation by 2 removes the fraction:
m + 4t = £84
and multiplying this by -1 results in
-m - 4t = -£84, which can now be added to the first equation m + t = £36:
-m - 4t = -£84
+m + t = £36
---------------------
-3t = -£48
We have successfully eliminated m. To solve this last result for t, divide both sides by -3, obtaining t = £16
Since m + t = £36 and t = £16, m must be £20.
Mary has £20 and Tom has £16
Answer:
<h3>-10⇜</h3>
Step-by-step explanation:
AB=-6×-5÷-1×3
AB= 30÷-3
<h3>AB= -10⇚</h3>
Answer:
$16.90
Step-by-step explanation:
The sales tax for each CD was $1.30 and there were 4 CD's so multiply $1.30 by 4 and you'll get $5.20, subtract $5.20 from $72.80 and you'll get $67.60. This means that $67.60 is the overall price (without tax) of the four CD's. Divide $67.60 by 4 and you'll get $16.90 this is the original price of one CD.
