3 years ago

An example how multiplication is assocative

Mathematics

1 answer:

vfiekz [6]3 years ago

8 0

This one may help you.

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It cost John $15.86 to buy 2.5 pounds<br> of ground beef. What was the cost per<br> pound?

Paha777 [63]

Answer:

$6.34

Step-by-step explanation:

15.86 / 2.5 = 6.34

$6.34

6 0

3 years ago

AT&T charges a connection fee of 35 cents and 3 cents per minute. Verizon charges a connection fee of 45 cents and 2 cents p

Mama L [17]

Answer:

10 Minutes

Step-by-step explanation:

At&t = 3x+35

Verizon = 2x+45

2x+45=3x+35

-2x -2x

45=x+35

-35 -35

x=10

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3 years ago

Question Help

Sergeeva-Olga [200]

Answer:

if u divide it then slop it u will get your answer

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2 years ago

The number of measles cases increased 13.6 % to 57 cases this year, what was the number of cases prior to the increase? (Express

ELEN [110]

Answer:

The number of cases prior to the increase is 50.

Step-by-step explanation:

It is given that the number of measles cases increased by 13.6% and the number of cases after increase is 57.

We need to find the number of cases prior to the increase.

Let x be the number of cases prior to the increase.

x + 13.6% of x = 57

$x+x\times \frac{13.6}{100}=57$

$x+0.136x=57$

$1.136x=57$

Divide both the sides by 1.136.

$\frac{1.136x}{1.136}=\frac{57}{1.136}$

$x=50.176$

$x\approx 50$

Therefore the number of cases prior to the increase is 50.

7 0

3 years ago

The sum of the squares of 3 consecutive positive integers is 116. What are the numbers?

Elza [17]

You are supposed to use the third option: 3n2 + 6n + 5 = 116.
Take a look at the attachment to see how I got that solution.
Hope it helps! :)

5 0

3 years ago