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taurus [48]
3 years ago
6

Explain how you can use the Associative Property to evaluate (7×50)×4

Mathematics
1 answer:
larisa86 [58]3 years ago
8 0
Ok so
associative peroperty is
(ab)c=a(bc) so
(7 times 50) times 4=7 times (50 times 4)
and we know that 50 times 4=200 so now we have
7 times 200=1400

answer is 1400
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Alguien me ayuda en esto
guajiro [1.7K]

Answer:

diagrama c

Step-by-step explanation:

5 0
3 years ago
Resuelve:
jok3333 [9.3K]

Answer:

A partir del problemas vamos a crear una ecuación donde X es una docena de huevos y Y una libra de mantequilla

entonces: 4 docenas de huevos y 3 libras de mantequilla es igual a 14.100

en mi primera ecuación seria: 4X + 3Y = 14.100

ahora haremos la segunda ecuacion: tres docenas y 1 libra de mantequilla

en mi segunda ecuación seria: 3X + 1Y = 8.700 el plan es sumar las dos ecuaciones pero yo quiero que al sumarlas la variable "Y" desaparezca así que mi segunda ecuación la voy a multiplicar pór (-3) quedándome todo así:

primera ecuación: 4X + 3Y = 14.100

segunda ecuacion multiplicada por -3: -9X - 3Y = -26.1

al sumarlas obtengo como resultado: -5X = -12

resolviendo esa ecuacion obtengo que X=  

X=2.4

luego reemplazas X en la primera ecuación: 4X + 3Y = 14.100

reemplazando seria: 4 x (2.4) + 3Y =14.100

9.6 + 3Y = 14.1000

3Y= 14.100 - 9.6

Y=  

Y=1.5

entonces concluimos que la docena de huevos cuesta 2.4 $ y la libra de mantequilla 1.5 $

Step-by-step explanation:

4 0
3 years ago
Josiah invests $360 into an account that accrues 3% interest annually. Assuming no deposits or withdrawals are made, which equat
tangare [24]
Hi there

The equation is
Y (x)=360 (1.03)^x

Good luck!
3 0
4 years ago
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astra-53 [7]

Answer:

f(2+h)=-(h+2/3)^2+1/4

f(x+h)=-(x+h-1/2)^2+1/4

Step-by-step explanation:

1. f(2+h)=(2+h)-(2+h)^2=2+h-4-4h-h^2=-h^2-3h-2=-(h^2+3h+2)

=-(h+2/3)^2+1/4

2. Let (x+h)=a, then rewrite the equation into f(a)=a-a^2.

a-a^2=-(a^2-a)=-[(a-1/2)^2-1/4]=-(a-1/2)^2+1/4.

Insert a=x+h, f(x+h)=-(x+h-1/2)^2+1/4

7 0
3 years ago
Nancy rides her horse with a constant speed of 6 miles per hour. How Far can she travel in 1/2 hour?
zavuch27 [327]

Answer:

She can travel 3 miles in 1/2 of an hour.

Step-by-step explanation:

6 x 1/2 = 3

3 0
4 years ago
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