Try calculating each of these yourself:
<span>First, 34(58 + 9) = 34(67) = 2278 </span>
<span>A. 34 x 67 = 2278 </span>
<span>B. 58(34 + 9) = 58(43) = 2494 </span>
<span>C. 34 x 58 + 34 x 9 = 34 x (58 + 9) = 34 * 67 = 2278 </span>
<span>D. 1,972 </span>
<span>So the answer is B and D are not equal to 34(58 + 9).
Hope I helped! If you need anything else just ask!</span>
Question:
The relationship between t and r is expressed by the equation 2t+3r+6 = 0. If r increases by 4, which of the following statements about t must be true?
Answer:
The value of t is reduced by 6 when the value of r is increased by 4
Step-by-step explanation:
Given
Required
What happens when r is increased by 4
<em>-------- Equation 1</em>
Subtract 2t from both sides
--- <em>Equation 2</em>
When r is increased by 4, equation 1 becomes
Note that the increment of r also affects the value of t; hence, the new value of t is represented by T
Open bracket
Rearrange
<em>Substitutr -2t for 3r + 6 [From equation 2]</em>
Make T the subject of formula
Divide both sides by 2
This means that the value of t is reduced by 6 when the value of r is increased by 4
Answer:
4(9x^4+1858)
Step-by-step explanation:
36 x^4 + 18^3 + 40^2
36x^4+7432
4(9x^4+1858)
Answer:
The regular price=$750
Step-by-step explanation:
Step 1
Let the regular price be x
regular price=x
Step 2
The expression for the price after the discount is;
price after discount=regular price-discount rate×regular price
where;
regular price=x
discount rate=25%
replacing;
price after discount=x-(25/100)×x=x-0.25 x=0.75 x
price after discount=0.75 x
Step 3
Get the expression for the final bill as shown;
final bill=price after discount-gift certificate
where;
final bill=$522.50
price after discount=0.75 x
gift certificate=$40
replacing;
522.50=0.75 x-40
0.75 x=522.50+40
0.75 x=562.50
x=562.5/0.75
x=750
The regular price=$750
