Convert percentages to units.
100% - 20% = 80% = 0.8
100% - 25% = 75% = 0.75
Then multiply those together:
0.8*0.75=0.6=60%
100% - 60% = 40%. That's the overall price percentage reduction.
P.S. You can convert percentages to units by diving % by 100 for example 100% divided by 100 is equal to 1.
And vice versa aka multiply units by 100 and you get %, for example 0.8 times 100 is 80%
20 = 5(-3 + x) Multiply 5 into (-3 + x)
20 = -15 + 5x Add 15 on both sides
35 = 5x Divide by 5 on both sides to get x by itself
7 = x
20 = 5(-3 + x) Divide 5 on both sides
4 = -3 + x Add 3 on both sides to get x by itself
7 = x
Answer:
B
Step-by-step explanation:
apply difference of two squares
Answer:
tan=0.75
Step-by-step explanation:
We know sin=opp/hyp, so 21 is the opposite side length in relation to theta.
To figure out tan, we need to know what the adjacent angle is because tan=opp/adj
21 squared= 441
35 squared =1225
1225-441= 784
The square root of 784 = 28
Now that we know both the opp and adj sides, we can solve for tan.
21/28= 0.75
