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Aleksandr [31]
3 years ago
13

Evaluate the expression.

Mathematics
1 answer:
xxMikexx [17]3 years ago
7 0

Answer:

17

Step-by-step explanation:

2 sqrt(81) -1

We know the sqrt(81) = 9

2*9 -1

18-1

17

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How many centimeters are in 5 inches? 1in.=2.54cm
Tanya [424]

Answer:

12.7 inches

Step-by-step explanation:

you need to multiply 2.54*5

and your final answer is 12.7 in

8 0
3 years ago
HELP PLEASE Sam and George both worked hard over the summer. Together they earned a total of $525. George earned $75 more than S
ZanzabumX [31]

Answer:   Sam = $225      George = $300

<u>Step-by-step explanation:</u>

NOTES:

Sam: s

George: g = s + 75

Together: s + g = 525


a.

The two equations that can be created are "George" and Together"

The system is: \left \{ {{\text{g = s + 75}} \atop {\text{s + g = 525}}} \right.

b.

see attached graph

c.

The intersection of the two lines is at (225, 300).  Since Sam represented the x-axis and Georege represented the y-axis, then Sam = $225 and George = $300.


BONUS:

This system can also be solved algebraically using the substitution method.

Replace "g" with "s + 75" into the second equation:

s + (s + 75) = 525

2s + 75 = 525

2s = 450

 s = 225

Next, input the s-value into the George equation to solve for g:

g = s + 75   = (225) + 75   = 300

5 0
2 years ago
your friend bought 3 bags of wild bird seed and an $18 bird feeder. each bag of birdseed costs the same amount. if your friend s
IrinaVladis [17]
The total amount that your friend spent is the sum of the cost for 3 bags of wild bird seed and the bird feeder. By letting x be the cost of each bag of wild bird seed, the total cost for purchasing 3 bags of this is 3x. The equation that may be used to determine x is letter "B. 3x + 18 = 45". Each bag costs $9.
8 0
3 years ago
A zoo orders food in bulk for it's animals. they order enough fresh fruit to last 10 days, enough fresh vegetables for 7 days, a
hammer [34]

Answer:

The answer to this question is C.) 70 Days

7 0
2 years ago
Winnie poured 14 cups of water into a rectangular container measuring 13 inches by 7 inches by 6 centimeters.
kow [346]
Max volume = Volume of container = 13 in x 7 in x 6 in = 546 in^3 
<span>Part B: </span>
<span>1 cup = 14.4375 in^3 </span>
<span>14 cups = 14.4375 in^3 * 7 = 202.125 in^3 </span>
<span>Part C: </span>
<span>Height of water = (202.125 in^3)/(13 in x 7 in) = 2.22 in.
(i HAD THE SAME QUESTION)</span>
6 0
2 years ago
Read 2 more answers
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