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CaHeK987 [17]
3 years ago
9

3 times the sum of a number and 5 (Write this word expression as an algebraic expression. Use x as your variable.

Mathematics
1 answer:
enyata [817]3 years ago
6 0

Answer:

3(x+5)

Step-by-step explanation:

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a) 3∕5= 60∕100= 40% (resolvido) b) 11∕4= c) 4∕20= d) 9∕5= e) 10∕200= 5∕100= 5% (resolvido) f) 8∕200= g) 30∕300=
Assoli18 [71]

Answer:

En cada expresión queremos obtener 100 en el denominador.

Notar que en la primer eq. tendríamos:

a) 3/5 = (20/20)*(3/5) = (20*3)/(20*5) = 60/100 = 0.6  (corresponde a 60%)

b) 11/4 = ?

Acá el denominador es 4

tenemos que encontrar un número k tal que:

k*4 = 100

k = 100/4 = 25

Entonces podemos multiplicar denominador y numerador por 25.

11/4 = (25/25)*(11/4) = (25*11)/(25*4) = 275/100 = 2.75 (corresponde a 275%)

c) 4/20

el denominador es 20, entonces tenemos que resolver:

20*k = 100

k = 100/20 = 5

multiplicamos denominador y numerador por 5:

(5/5)*(4/20) = (5*4)/(5*20)  =  20/100 = 0.2  (corresponde al 20%)

d) 9/5

el denominador es 5, entonces debemos resolver:

5*k = 100

k = 100/5 = 20

Debemos multiplicar denominador y numerador por 20

(20/20)*(9/5) = (20*9)/(20*5) = 180/100 = 1.8  (corresponde a 180%)

e) 10/200 = 5/100 = 0.05  (corresponde al 5%)

f) 8/200

Se resuelve de similar forma al de arriba (que ya tenias resuelto).

Aca el denominador eso 200, entonces tenemos que tener:

200*k = 100

k = 100/200 = 1/2

Entonces multiplicamos numerador y denominador por 1/2

(1/2/1/2)*(8/200) = (8*1/2)/(200*1/2) = 4/100 = 0.04 (corresponde al 4%)

g) 30/300

aca el denominador es 300

Entonces:

300*k = 100

k = 100/300 = 1/3

Multiplicamos numerador y denominador por 1/3

(1/3/1/3)*(30/300) = (30*1/3)/(300*1/3) = 10/100 = 0.1  (corresponde al 10%)

3 0
3 years ago
Helpppp: write the rule that describes the composition of transformations
Deffense [45]
Omg i need help on tht too
7 0
3 years ago
A business owner has two loans from the local bank. One of the loans is a three-year loan with a principal of $75,000 and an ann
vagabundo [1.1K]

Answer:


Step-by-step explanation:

One loan from the local bank is a three year loan with a capital of $75000 and an annual interest of 5%.

Therefore simple interest form this loan for the year will be

⇒ Principal amount×Rate of interest×Time(in years)/100

⇒ 75000×5×1/100

Interest = $3750

Other loan is a one year loan with a principal of $21000 and annual interest of 4.5%

Therefore interest of first year from this loan will be

= Principal amount×Rate of interest×Time(in years)/100

= 21000×5×4.5/100

= $4725

Total interest of first year for both loans = 3750+4725 = $8475

3 0
3 years ago
Read 2 more answers
Your time in a 5k race. Is this discrete or continuous? Write a reasonable
Aneli [31]

Answer:

For intermediate runners (generally those who run 10 – 20 miles per week) an average 5K time would be around 20-25 minutes, which is an average speed of around 7-9mph over the course.

Step-by-step explanation:

https://www.ukfitnessevents.co.uk/event/5k-runs/average-5k-time

3 0
3 years ago
I cant do my mymaths honework ..
sergeinik [125]
Here is the answer for ur question.....

3 0
3 years ago
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