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3 years ago

7

2x - 5= 5x + 7 linear equations

1 answer:

Bezzdna [24]3 years ago

3 0

Answer:

-4 =x

Step-by-step explanation:

2x - 5= 5x + 7

Subtract 2x from each side

2x-2x - 5= 5x-2x + 7

-5 = 3x+7

Subtract 7 from each side

-5-7 = 3x+7-7

-12 = 3x

Divide by 3

-12/3 = 3x/3

-4 =x

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The formula is m=4a+2c where c is the number of children, m=the number of meatballs, a=number of adults.

Trava [24]

Answer:

110

Step-by-step explanation:

m = 4a + 2c

a = 25, c = 5

m = 4(25) + 2(5)

m = 100 + 10

m = 110 meatballs

6 0

3 years ago

Help me plz add or subtract the following fraction answer the lowest terms.

Stels [109]

1. =4/16 which in simplified terms = 1/4

2. = 37/99 (find the lowest common denominator which is 99 then multiply them, then combine fractions then subtract them)

3. 2/25

4. 12/18 which simplified is 2/3

5. 5/15 which simplified = 1/3

Hope you understand that:)

3 0

2 years ago

James tosses a coin 50 times. It lands on heads 23 times and on tails 27 times.

valentinak56 [21]

Answer:A

Step-by-step explanation:

23/50= 0.46 *100= 46%

4 0

3 years ago

Read 2 more answers

Need some help with this

kramer

Answer:

Step-by-step explanation:

The total number of outcomes the two fair number cubes are thrown is 36. This can be seen by counting the outcomes shown on the table.

a) for a sum of 4, there are only 3 possible outcomes. They are 3,2 2,2 and 1,3

Therefore, the probability of getting a sum of 4 will be

3/36 = 1/12

b) for a sum of 5, there are only 4 possible outcomes. They are 4,1 3,2 2,3 and 1,4

Therefore, the probability of getting a sum of 4 will be

4/36 = 1/9

c)for a sum of 6, there are only 5 possible outcomes. They are 5,1 4,2 3,3 2,4 and 1,5

Therefore, the probability of getting a sum of 6 will be

5/36 = 5/36

The probability that the sum of the results of the throw is 4,5 or 6 would be

1/12 + 1/9 + 5/36 = (3 + 4 + 5)/36 = 12/36 = 1/3

7 0

3 years ago

Suppose the odds against winning the lottery as 48,000,000 to 1. What is the probability of the event of winning the lottery giv

kupik [55]

The probability according to the given scenario will be " $\frac{1}{48,000,001}$ ".

According to the question:

The odds against winning the lottery are 48,000,000 to 1.
Favorable outcome = 1

→ The total outcome will be:

= $48,000,000 +1$

= $48,000,001$

As we know,

→ $P(E) = \frac{Favorable \ outcomes}{Total \ outcomes}$

By putting the values, we get

→ $=\frac{1}{48,000,001}$

Thus the above response is right.

Learn more about Probability here:

brainly.com/question/15739211

8 0

2 years ago