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4 years ago

5-p=r-3 multi step equation

Mathematics

1 answer:

const2013 [10]4 years ago

4 0

Answer:

r+p=-8

Step-by-step explanation:

5-p=r-3

5+3-p-r=0

8-p-r=0

r+p=-8

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HELP please and thanks.. :)

fomenos

Answer:

false: the event will never occur; the event will definitely occur; the event is likely to occur

true: there is a small chance that the event will occur

Step-by-step explanation:

7 0

3 years ago

Frankie solved the math problem below. Find the error in Frankie's work and explain it in words, using math language. 2 1/3 - 1

HACTEHA [7]

Given:

The expression is

$2\dfrac{1}{3}-1\dfrac{2}{5}$

To find:

The error in Frankie's work.

Solution:

We need to simplify $2\dfrac{1}{3}-1\dfrac{2}{5}$ , so

$2\dfrac{1}{3}=2\dfrac{1}{3}\times \dfrac{5}{5}$

$2\dfrac{1}{3}=2\dfrac{5}{15}$

and,

$1\dfrac{2}{5}=-1\dfrac{2}{5}\times \dfrac{3}{3}$

$1\dfrac{2}{5}=-1\dfrac{6}{15}$

Now,

$2\dfrac{1}{3}-1\dfrac{2}{5}=2\dfrac{5}{15}-1\dfrac{6}{15}$

$2\dfrac{1}{3}-1\dfrac{2}{5}=(2+\dfrac{5}{15})-(1+\dfrac{6}{15})$

$2\dfrac{1}{3}-1\dfrac{2}{5}=2+\dfrac{5}{15}-1-\dfrac{6}{15}$

$2\dfrac{1}{3}-1\dfrac{2}{5}=1-\dfrac{1}{15}$

$2\dfrac{1}{3}-1\dfrac{2}{5}=\dfrac{14}{15}$

Therefore, there is error in Frankie's last step. In that step, he did not subtract the mixed fraction correctly.

8 0

3 years ago

Flour costs $0.80 per pound and sugar costs $0.50 per pound. An order of flour and sugar weighs 15 pounds and costs $9.00. Make

LenaWriter [7]

Answer: $x+y=15$

$0.80x+0.50y=9$

Step-by-step explanation:

Let x be the amount of flour and y be the amount of sugar ordered.

Since, the order of flour and sugar weighs 15 pounds.

Therefore, $x+y=15$

Also, Flour costs $0.80 per pound and sugar costs $0.50 per pound.

The cost of ordered flour=$0.80x

The cost of ordered sugar=$0.50y

Now, the total cost of the order= $0.80x+0.50y=9$

Hence, for the given situation the system of equations is:-

$x+y=15$

$0.80x+0.50y=9$

8 0

4 years ago

Determine the correct equation used in order to solve the problem "The number 24 is what percent of the number 40?"

lions [1.4K]

The correct equation that represents the expression "The number 24 is what percent of the number 40?" is as shown below;

The the unknown number in percent be 'x'

x percent of number 40 is expressed as;

x% of 40

x/100 of 40

If 24 is equal to the expression above, then the final equation will be expressed as;

24 = x/100 of 40

24 = 40x/100

24 = 0.4x

Rearrange

0.4x = 24

Hence the correct equation used to solve the problem is 0.4x = 24

4 0

1 year ago

8. Marvin's son is 3 ft tall. He casts a shadow of 1 foot. Marvin cast a

taurus [48]

Answer:

C. 6 ft

Step-by-step explanation:

If Marvin's son is 3 feet tall with a 1 foot shadow, Marvin would be 6 feet tall with a 2 foot shadow.

7 0

3 years ago

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