The answer to this question is x = 0 if the x is an exponent on the base (7^2).
Answer:
0.002
Step-by-step explanation:
1%=.01 so (Multipy by 2)
2%=.02 so (divide by 10)
.2%=0.002
0.002
Question 19:
To get the answer we just have to round up the number then multiply...
9.8% = 10%
5.5% = 5%
19.8 = 20%
(Use the rounding rule, but in 2014 the 20 tons actually increase by 10%, this is where me multiply)
Our equation should look like 20(1.10) so far...
In 2015, we would need to increase the quantity by 5%, which means we would multiply that quantity by 1.05.
Answer:
D) 20(1.1)(1.05)
Question 27:
First, let's find out the discount during the sale, we know there was a 40% discount...
When we use percentages we know it's out of 100...so...
450 * (100% - 40%)
450 * (60%)
450 * (0.6
= 270
After the sale it increases by 40%...
100% + 40% = 140%
140% = 1.4
270 x 1.4
= 378
Answer:
C) 378
I hope this helps, hopefully my explanation made sense...
Answer:
a = 242 adult and c = 52 children
Step-by-step explanation:
Solving as a system of equations.
a = adult
c = children
The adult and the children equal 294 people
a + c = 294
adult cost is 2.25 per adult
Total amount of adult is 2.25a because the number of adult are not given.
children cost is 1.75 per children
Total amount children is 1.75c because the number of children are not given
Total receipts $635.50.
a + c = 294 <em>multiply by -1.75</em> -1.75a - 1.75c = - 514.50
2.25a + 1.75c = 635.50 <em>does not change </em>2.25a + 1.75c = 635.50
<em>Add these equations together</em>
-1.75a - 1.75c = - 514.50
<u><em> </em></u><u>2.25a + 1.75c = 635.50 </u>
<em> </em> .50a = 121.00
a = 121.00/.50a
a = 242 adult
a + c = 294
242 + c = 294
c = 294 - 242
c = 52 children
Check: $2.25(242) + $1.75( 52) = $635 .50
$544.50 + $91.00 = $635.50
$635.50 = $635.50
Volume is approximately 502.65 cm^2