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ira [324]
2 years ago
6

Craig bought 8 folders and notebooks for school folders costs 50 cents and notebooks costs a $50 Craig spent a total of $6 how m

any folders and how many notebooks did he
buy
Mathematics
1 answer:
stellarik [79]2 years ago
4 0

The number of folders and notebooks in the equation is given by 3 and 5 respectively.

<h3>How to find number of folders and notebooks?</h3>

let

  • x = number of folders
  • y = number of notebooks

The equation:

x + y = 8

0.50x + 1.0y = 6

From (1)

x = 8 - y

Substitute x = 8 - y into (2)

0.50(8 - y) + 1.0y = 6

4 - 0.50y + 1.0y = 6

4 + 0.40y = 6

4 - 6 = -0.40y

-2 = - 0.40y

y = -2 / 0.40

y = 5

Recall

x + y = 8

x + 5 = 8

x = 8 - 5

x = 3

Learn more about simultaneous equation:

brainly.com/question/16863577

#SPJ1

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Martina is 3 inches less than twice as tall as her little brother. Write an expression for Martina's height. How tall is Martian
Lyrx [107]

Answer:

Martina is 53 inches tall.

Step-by-step explanation:

In order to write an expression that relates the siblings heights we need to attribute variables to each brother. First we will call Martina's height as "m", then we can call her little brother's height as "b". The problem states that Martina's height is 3 inches less than twice the height of her brother so we have:

m = 2*b - 3

Then the problem gives us the height of her brother that is 28 inches tall, so b = 28. We can now compute Martina's height:

m = 2*28 - 3 = 56 - 3 = 53 inches.

4 0
3 years ago
Después de una tormenta ,un agricultor dice que ha perdido el 40%de la cosecha .Si se han dañado 406 kg de verdura por la tormen
Minchanka [31]

la totavilidad estimada es de

1000 kg

4 0
3 years ago
An airplane travels a total distance of 5,585 kilometers on a trip. It travels 563 kilometers in the first 40 minutes of the tri
lora16 [44]

Answer:

6.67 hours

Step-by-step explanation: take 5585/837

5 0
3 years ago
Line segment ON is perpendicular to line segment ML.
sergeinik [125]

Answer:

The length of NP is 2 units.

Step-by-step explanation:

Given the radius of 5 units and the length of MP is 4 units in the circle

we have to find the length of NP    

OL=OM=5 units  ( ∵ Radii of same circle)

In ΔOMP, by Pythagoras theorem

OM^2=MP^2+OP^2

5^2=4^2+OP^2

OP^2=25-16=9

OP=3 units

As we see

ON=OP+NP

5=3+NP

NP=5-3=2\thinspace units

Hence, the length of NP is 2 units.

Option D is correct.

7 0
3 years ago
13) Circle O is shown with point A, B, C, and D on Circle O.
sladkih [1.3K]

The value of y is 50

The angle measurement of angle AOB is 100°

<h3>Circle Geometry </h3>

From the question, we are to determine the value of y and the measure of angle AOB

From one the circle theorems, we have that

Angles in the <u>same segment</u> are equal

In the given diagram, x° and y° are angles in the same segment

∴ x° = y°

From the given information,

x = 50

∴ y = 50

Hence, the value of y is 50

Also, from another circle theorem,

Angle at the <u>center</u> is twice the angle at the <u>circumference</u>

∴ ∠AOB = 2x° = 2y°

Then,

∠AOB = 2×50°

∠AOB = 100°

Hence, the angle measurement of angle AOB is 100°

Learn more on Circle Geometry here: brainly.com/question/17074363

#SPJ1

7 0
2 years ago
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