Megan has $45.12 in her purse. She spends $7.89 for lunch and $21.25 for a pair of sunglasses. Which is the best estimate for the amount of money Megan has left?Responses
$12
$16
$20
$24
Answers
Answer: To find the best estimate for the amount of money Megan has left, we need to subtract the amount she spent from the initial amount she had. Megan started with $45.12, and she spent $7.89 for lunch and $21.25 for sunglasses.
First, let's subtract $7.89 from $45.12:
$45.12 - $7.89 = $37.23
Next, let's subtract $21.25 from $37.23:
$37.23 - $21.25 = $15.98
So, the best estimate for the amount of money Megan has left is $15.98.
Out of the given options, the closest estimate to $15.98 is $16. Therefore, the correct answer is $16.
Answer:
$16
If this helped you let me know so I will know to keep helping. If not, I will improve and make sure my work is correct. Have a nice day!
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x divided 7 = 3; 20, 21, 22
Answers
⇒ x= 3*7
⇒ x= 21
x/7= 20
⇒ x= 20*7
⇒ x= 140
x/7= 21
⇒ x= 21*7
⇒ x= 147
x/7= 22
⇒ x= 22*7
⇒ x= 154
Hope this helps~
4 hours of
loading/unloading
7 hours of
loading/unloading
Answers
The hourly rates of loading/unloading = $100
The hourly rates of packing/unpacking = $90
Step-by-step explanation:
Here, the given table is MISSING.
The correct table for reference is attached.
Now, let us assume the hourly rates of loading/unloading = $ m
Assume the hourly rates of packing/unpacking = $ n
As given in the table:
3 hours of loading/unloading + 2 hours of packing/unpacking costs = $480
⇒ 3 m + 2 n = 480
⇒ 2 n = 480 - 3 m .... (1)
5 hours of loading/unloading + 2 hours of packing/unpacking costs = $680
⇒ 5 m + 2 n = 680
⇒ 2 n = 680 - 5 m .... (2)
Now, solving for the values of m and n, we get:
480 - 3 m = 680 - 5 m
⇒ 5 m - 3 m = 680 - 480
⇒ 2 m = 200
or, m = 100
Now, 2 n = 680 - 5 m = 680 - 5 (100) = 180
⇒ n = 90
Hence, the hourly rates of loading/unloading = $ m = $100
The hourly rates of packing/unpacking = $ n = $90
Answers
not sure how to absolutely prove
I can prove it works at least most of the time by subsitute ing number for x
remember that 0,1,2 have special properties and are not very good for subsituting so
try 4
4+8(4)=4(2(4)+1)
true or false?
4+8(4)=4(2(4)+1)
multipily
4+32=4(8+1)
36=4(9)
36=36
this is treu at least for the number 4
another way is to believe in the distributive property where
a(b+c)=ab+ac so then
4(2x+1)=4(2x)+4(1)=8x+4=4+8x
Now, see if the simplified form of 4(2x + 1) is equal to that.
4*2x = 8x
4*1 = 4
4 + 8x = 4 + 8x Correct
Answers
Answers
(first correct answer gets brainliest)
(it is the square root of both 6x and 38)
Answers
Answer:
The solution set is = {7, 9}.
Step-by-step explanation:
√(6x - 38) = x - 5
Square both sides:
6x - 38 = (x - 5)^2
x^2 - 10x + 25 - 6x + 38 = 0
x^2 - 16x + 63 = 0
(x - 7)(x - 9) = 0
x = 7, 9.
Check these solutions:
x = 7:
√(6x - 38) = √(42-38) = 2 and 7 - 5 = 2 so this is correct.
x = 9
√(6x - 38) = √(54 - 38) = √16 = 4 and 9 - 5 = 4 so 9 is also correct.
{7, 9}
I hope this helps you!!