Answer:
180
Step-by-step explanation:
75% times 240 would be 180
<h3>I'll teach you how to solve 6.71 - 2.2 × 2.1 + 0.5^2</h3>
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Multiply the numbers: 2.2*2.1= 4.62
6.71-4.62+0.5^2
Subtract the numbers: 6.71-4.62= 2.09
0.5^2+2.09
0.5^2 = 0.25
0.25+2.09
Add the numbers:
0.25+2.09= 2.34
2.34
Your Answer Is 2.34
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<h3>
Answer: 81</h3>
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Work Shown:
a = first term
a*(2/3) = (2/3)a= second term
(2/3)a*(2/3) = (4/9)a = third term
note how I multiplied each previous term by the common ratio (2/3) to get the next term
Add up the three terms
a + (2/3)a + (4/9)a = (9/9)a + (6/9)a + (4/9)a = (19/9)a
Set this equal to 171, which is what we want the first three terms to sum to, then solve for 'a'
(19/9)a = 171
a = (9/19)*171
a = 81 is the first term
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Checking the answer:
a = 81 = first term
(2/3)*a = (2/3)*81 = 54 = second term
(4/9)*a = (4/9)*81 = 36 = third term
adding up the three terms gets us
81+54+36 = 171
so we have confirmed the answer
Y= 0.5x - 1
It might be written as half x like 1/2