Answer:
<em>of Carl's rocks are quartz or granite</em>
Step-by-step explanation:
<u>Proportions and Fractions
</u>
A proportion is expressed as a fraction a/b, where a and b are compared by division. If a=b, the proportion (or ratio) equals 1, if a<b, the ratio is less than 1, and if a>b, the ratio is greater than 1. The proportion of elements of a set to the total number of elements of the set is less than one, and the sum of all them equals 1.
We know 3/8 of Carl's rock collection are quartz and 1/3 are granite. If both subsets of rocks are mutually exclusive or disjoint (cannot happen simultaneously), then the proportion of both is the sum of the fractions.

Step-by-step explanation:
53 ÷ (-12 x - 4)
53 ÷ 48
= 1.10416
Answer:
4) -15 + (3)
Step-by-step explanation:
1: -9-(-9) = -9-9 = 0
2: -2-(6) = -2-6 = -8
3: 15 + (-7) = 15 - 7 = 8
4: -15 + (-3) = -15-3 = -18
-18 is the smallest value
Answer:
4
Step-by-step explanation
+8 + (-7) + (+11) + (-2)= 4
Expression for percent of survey participants who chose fishing =
Explanation:
Total number of boys = 60
Number of boys who took part in survey = 18 + 29 =47
Number of boys who chose fishing = 29.
Percentage of an outcome = (Number of favorable outcome/ Total number of outcome) x 100
Percentage of boys who chose fishing = (29/47)x100
Expression for percent of survey participants who chose fishing =
Hope I helped! :)