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defon
3 years ago
13

Hardest one yet.. complete all of these i mean all of em

Mathematics
1 answer:
Nonamiya [84]3 years ago
3 0

Answer:

1st one: 16

2nd one: 16

3rd one: 64

4th one: 27

5th one: 1000

Step-by-step explanation:

Have a great day

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The sum of two numbers is the same as four times the smaller number. If twice the larger is decreased by the smaller, the result
liraira [26]

The two numbers are 6 and 18

Step-by-step explanation:

The given is:

  • The sum of two numbers is the same as four times the smaller number
  • If twice the larger is decreased by the smaller, the result is 30

We need to find the the numbers

Assume that the smaller number is x and the larger number is y

∵ The smaller number = x

∵ The larger number = y

∵ The sum of the two numbers is the same as four times the

   smaller number

- That means add the two numbers and equate the sum by four

   times x

∴ x + y = 4x

- Subtract both sides by x

∴ y = 3x ⇒ (1)

∵ Twice the larger number is decreased by the smaller number,

   the result is 30

- That means multiply y by 2 and subtract x from the product,

    then equate the difference by 30

∴ 2y - x = 30 ⇒ (2)

- Substitute y in equation (2) by equation (1)

∵ 2(3x) - x = 30

∴ 6x - x = 30

- Add like terms in the left hand side

∴ 5x = 30

- Divide both sides by 5

∴ x = 6

- Substitute the value of x in equation (1) to find y

∵ y = 3(6)

∴ y = 18

The two numbers are 6 and 18

Learn more:

You can learn more about the system of equation in brainly.com/question/2115716

#LearnwithBrainly

5 0
3 years ago
a bracelet was marked up $30 from cost which amount to a 50% increase. Find the original cost of the bracelet
Ne4ueva [31]
$60, because-50/100=30/?-and-30/50=0.6. So-?=60
4 0
3 years ago
Ms. Higdon is planning her wedding. One venue charges
Diano4ka-milaya [45]

Answer:

80 people would need  to attend for the venues to cost the same amount.

Step-by-step explanation:

Let the total number of people who attend the wedding  = m

The venue charges of venue 1 = $10,000

The per person charge of Venue 1  = $25 per person

So, the charge for m people  =  m x ($25)  = 25 m

So ,The total charge of Venue 1 = Venue Charge  +  People Cost

= $10, 000 + 25 m

Now, The per person charge of Venue 2  = $150 per person

So, the charge for m people  =  m x ($150)  = 150 m

So ,The total charge of Venue 2 =   150 m

According to question:

For m people both charges are equal  ⇒ $10, 000 + 25 m  = 150 m

or, 10,000 = 150 m - 25 m

⇒ 125  m  = 10,000

⇒ m  = 10,000 / 125 = 80

or, m  = 80

Hence,  80 people would need  to attend for the venues to cost the same amount.

3 0
3 years ago
Jimmy wants a burger. It is $30 but he has a coupon for 10% off. How much does he spend?
zalisa [80]
He spends $27.00 because you multiply the 10% by 30 and subtract the two
4 0
3 years ago
For one dozen cookies you need to use of a cup of sugar,
Andre45 [30]

Answer:

4 dozen

Step-by-step explanation:

6 0
3 years ago
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