These examples of a fact family with only two facts are 6 x 2 = 12, and 12 ÷ 2 = 6 using the number 6.
A number system is defined as a way to represent numbers on the number line using a set of symbols and approaches. These symbols, which are known as digits, are numbered 0 through 9.
In a fact family, there are three related math facts that share the same three numbers. In this case, the three numbers are 6, 2, and 12. The two facts are related to each other through the property of inverse operation of multiplication and division where the product of two numbers is 12 and the quotient of 12 and 2 is 6.
6 x 2 = 12
12 ÷ 2 = 6
This is an example of a fact family with only two facts, using the number 6. The first fact is 6 is multiplied by 2, which equals 12. The second fact is 12 is divided by 2, which also equals 6.
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Answer:
(A) option A is correct that is draw TV so that V is the mid point of SU, then prove ΔSTV≅ΔUTV using SSS.
Step-by-step explanation:
From the given figure, it is given that ST=TU, then draw TV so that V is the mid point of SU, then, from
ΔSTV and ΔUTV
ST=UT (Given)
SV=UV (Definition of mid point)
TV=TV (Reflexive property)
Thus, by SSS rule
ΔSTV≅ΔUTV
Hence, by CPCTC, ∠S≅∠U which satisfies the isosceles triangle theorem that is "If two sides of a triangle are congruent then the angles opposite those sides are congruent".
Thus, option A is correct that is draw TV so that V is the mid point of SU, then prove ΔSTV≅ΔUTV using SSS.
Answer: Draw QS so that S is the midpoint of PR, then prove PQS=RQS using SSS
Step-by-step explanation:
Answer:
Step-by-step explanation:
To express this problem using 7, 5, 6 and 3 without parenthesis, we have to use at least one number twice, because suing parenthesis is so much easier to express the result. So, the operations would be:
Therefore, the expression would be:
Answer:
The number of new books sold = 10
The number of used books sold (u) = 15
The number of magazines sold(m) = 20
Step-by-step explanation:
Let us assume the number of new books = n
So, the number of used books sold (u) = New books sold + 5 = n + 5
Also, the number of magazines sold (m) = 2 x ( Number of new books sold)
= 2 n
⇒ u = n + 5, m = 2 n
Here, the cost of each new book n- = $12
So, the cost of n new books = n x ($12) = 12 n
the cost of each used book u = $8
So, the cost of u = (n+ 5) used books = n+5 x ($8) = 8 n + 40
the cost of each magazine m = $5
So, the cost of m = (2n ) magazines = 2n x ($5) = 10 n
Also, total earnings = $340
⇒ 12 n + 8n +40 + 10 n = 340
or, 30 n = 300
or,n = 300/30 = 10
Hence the number of new books sold = n = 10
The number of used books sold (u) = n + 5 = 15
The number of magazines sold = m = 2 n = 20
Answer:
14
Step-by-step explanation:
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