Answer:
see explanation
Step-by-step explanation:
73.
18 = 3x (divide both sides by 3 )
6 = x ( multiply both sides by )
6 = 3x [ × = 3 ]
divide both sides by 3
x = 2
74.
24 = 2x ( divide both sides by 2 )
12 = x ( multiply both sides by )
12 = 2x ( divide both sides by 2 )
x = 6
75.
9 × x = 18 ( divide both sides by 9 )
x = 2
76.
2 = x × ( multiply both sides by )
2 = 4x ( divide both sides by 4 )
x =
PART A
write two different, equivalent expressions for how much the rosebush will cost if the coupon is applied first and the 10% discount second. <em><u>d-(d-5)</u></em><em><u>.</u></em><em><u>10</u></em><em> </em>= 27.5 <em>(if you put d in as 30!)</em>
PART B
write an expression for how much the rosebush will cost if the 10% discount is applied first and the coupon is applied second. <em><u>d-(d*.10)-5</u></em><em> </em><em> </em>=22 <em>(if you put d in as 30!)</em>
PART C
which order will save marina more money? explain your reasoning.
<u>d-(d*.10)-5</u><u> </u>This equals less! if you put in 30 as an example
So, A) <u>d-(d-5).10 </u>B)<u> </u><u>d-(d*.10)-5</u><u> </u>C) <u>d-(d*.10)-5</u>
Dear Credwine, the probability of getting a green candy-coated chocolate is 1/7. In addition, the probability of getting a blue candy-coated is 5/14. The probability that I will eat it is 100% (lol).
<span>5−16(−x+7)=1+3(2−4x)
*Distribute what's in the parantheses*
5+16x-112 = 1+6-12x
* Combine like terms*
16x-117 = -12x+7
*Put the variable on one side*
</span> 16x-117 = -12x+7
+12x +12x<span>
28x-117 = 7
+117 +117
28x = 124
/28 /28
x = 4.42 *decimals*</span>
Answer:
8 students per van and 46 students per bus
Step-by-step explanation:
Let the number of people in each van be v.
Let the number of people in each bus be b.
High School A:
1 van and 6 buses, 284 students
1 van had 1 * v people, or simply v students.
6 buses had 6b students.
Total of 284 students.
The first equation is
6b + v = 284
Now we do the same for High School B.
1 van and 5 buses, 238 students
1 van had v students
5 buses had 5b students
Total of 238 students.
The second equation is
5b + v = 238
We have 2 equations in 2 unknowns.
6b + v = 284
5b + v = 238
Rewrite the first equation. Multiply both sides of the second equation by -1 and write it below the first equation. Then add the equations.
6b + v = 284
(+) -5b - v = -238
----------------------------
b = 46
The number of students per bus is 46.
Now we use the first equation, substitute 46 for b, and solve for v.
6b + v = 284
6(46) + v = 284
276 + v = 284
v = 8
The number of students per van is 8.
Answer: 8 students per van and 46 students per bus