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Yuri [45]
3 years ago
12

Guys please assist me this is a system of equation word problem

Mathematics
1 answer:
Fofino [41]3 years ago
8 0
Let t and h represent the number of twenty- and hundred-dollar bills given the crook, respectively.
.. 20t +100h = 10000 . . . . . . the total value of the payment was $10,000
.. t - h = 20 . . . . . . . . . . . . . . . she gave him 20 more twenties than hundreds

Using an augmented matrix, the solution can be found to be
.. t = 100
.. h = 80

She gave the crook only 100 20s, so did not meet the requirement for 105 twenty-dollar bills. Polly did not give him enough.

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Alan has to finish an exam within 120 minutes. He finished the exam in 80 minutes. What is the percentage of the time he took fo
drek231 [11]

Answer:

66.67%

Step-by-step explanation:

80/120 = 66.67

7 0
3 years ago
PLEASE HELP ASAP!!! 2. Calculate the volume of this solid using the formula V=Bh (all angles are 90 degrees).
Softa [21]

Answer:

V = 27/64 cubic inches

Step-by-step explanation:

Given the information in the photo:

  • The height: 3/4 in
  • The length : 3/4 in
  • The width : 3/4 in

The volume of this solid using the formula

V=Bh where:

  • h is the height
  • B is the area of the base = The length * The width

=> The volume of this solid is:

V = 3/4 * 3/4 * 3/4

<=> V = 27/64 cubic inches

Hope it will find you well

7 0
3 years ago
If elf =gjh ef=12 and Lf=7.8 find ij
gavmur [86]

Answer:

IJ= 4.98

Step-by-step explanation:

EF = 12

KF = 6

LF = 7.8

LK = sqrt(7.8^2-6^2) = 4.98

IJ = LK (4.98)

8 0
3 years ago
How much is 89 km in miles?
laila [671]
89 km would be about 55.3 miles! that's the best answer, but if they want you to round then I'd say choose 55 miles
6 0
3 years ago
Read 2 more answers
A bag of concrete equals 1000 cu. Inches. Your customer already has 2 bags at home. How many more bags does he need to fill an a
adelina 88 [10]
From the information given;
1 bag of concrete = 1000 in^3
2 bags at home = 1000*2 = 2000 in^3

The available space has a volume of;

Volume = (5*12)*10*10 (Note: 1 ft = 12 inches)
Volume = 60*10*10 = 6000 in^3

The remaining volume = Available space - occupied space = 6000 - 2000 = 4000 in^2

1 bag = 1000 in^3
x bags = 4000 in^2

Then,
x = 1*4000/1000 = 4 bags.
This means 4 more bags of concrete will be required to fully fill the  space.
5 0
4 years ago
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