Answer:
6
Step-by-step explanation:
7x + 10 = 9x - 2
7x - 9x = -2 - 10
-2x = -12
-2x/-2 = -12/-2
x = 6
Answer:
x=5
Step-by-step explanation:
That is a right angle, so 18x=90. To find x, you have to divide 90 by 18, which gives you 5.
Answer:
39/50
Step-by-step explanation:
Rewrite the decimal number as a fraction with 1 in the denominator
0.78=0.781
Multiply to remove 2 decimal places. Here, you multiply top and bottom by 102 = 100
0.781×100100=78100
Find the Greatest Common Factor (GCF) of 78 and 100, if it exists, and reduce the fraction by dividing both numerator and denominator by GCF = 2,
78÷2100÷2=3950
Therefore
X=3950
In conclusion,
0.78=3950
Answer:
Step-by-step explanation:
- First digit- 1 option (9)
- Second digit - 10 options (0 to 9)
- Third digit - 10 options (9 to 9)
- Fourth digit - 4 options (6, 7, 8, 9)
<u>Possible number of sets:</u>