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2 years ago

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David and Mark are marking exam papers. Each set takes David 61 minutes and Mark 1 hour. Express the times David and Mark take a

s a ratio in its simplest form.

1 answer:

Mamont248 [21]2 years ago

5 0

Do you know how to change the 1 hour to minutes

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1. La asistencia a un juego de béisbol profesional fue de 4500 personas y el dinero

Elena-2011 [213]

Resolviendo un sistema de ecuaciones veremos que se vendieron 900 boletos de $15 y 3600 boletos de $10.

<h3> ¿Cuántos boletos de cada tipo se vendieron?</h3>

Primero definamos las variables:

x = número de bolteos de $10 vendidos.
y = número de bolteos de $15 vendidos.

Sabemos que se vendieron 4500 boletos, entonces:

x + y = 4500

Y se recaudo un total de $49,500, entonces:

x*$10 + y*$15 = $49,500

Entonces tenemos un sistema de ecuaciones:

Para resolver esto, primero debemos aislar una de las variables en la primer ecuación, voy a aislar x:

x = 4500 - y

Ahora reemplazamos esto en la otra ecuación:

(4,500 - y)*$10 + y*$15 = $49,500

Ahora debemos resolver estoy para y.

$45,000 - y*$10 + y*$15 = $49,500

y*$5 = $49,500 - $45,000 = $4,500

y = ( $4,500)/$5 = 900

Entonces:

x = 4500 - 900 = 3600

Se vendieron 900 boletos de $15 y 3600 boletos de $10.

Sí quieres aprender más sobre sistemas de ecuaciones:

brainly.com/question/13729904

#SPJ1

3 0

2 years ago

Which fraction is in lowest terms (simplest form) 12/18

Papessa [141]

Answer:

2:3

Step-by-step explanation:

Just divide each by 6

8 0

3 years ago

Read 2 more answers

Select all of the sentences that are punctuated correctly.

STatiana [176]

The dog's bowl was empty.

The singer's songs were finished.

6 0

3 years ago

Read 2 more answers

I need the mid point

Anestetic [448]

Answer:

$(14,\frac{-7}{2})$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Midpoint Formula: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Step-by-step explanation:

<u>Step 1: Define</u>

Point (18, 13)

Point (10, -20)

<u>Step 2: Find Midpoint</u>

Simply plug in your coordinates into the midpoint formula to find midpoint

Substitute [MF]: $(\frac{18+10}{2},\frac{13-20}{2})$
Add/Subtract: $(\frac{28}{2},\frac{-7}{2})$
Divide: $(14,\frac{-7}{2})$

7 0

2 years ago

Read 2 more answers

Giving Brainliest!

zavuch27 [327]

It is the first option- 12 times one fourth the quotient of 6 and 2

4 0

2 years ago