1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Hunter-Best [27]
2 years ago
8

The sum of two integers is 54 and their difference is 24​

Mathematics
1 answer:
muminat2 years ago
5 0

Answer:

Step-by-step explanation:

x + y = 54

x - y = 24

Adding the equations, we find:

2x = 78

x = 78/2 = 39

Replacing x by 39 in the first equation, comes: 39 + y = 54

So, y = 54 - 39; y = 15

Therefore, the unknown numbers are 39 and 15.

You might be interested in
When asked to rewrite the expression (x3 + 2x? – x)-(-x3 + 2x2 + 6), Denise made a mistake. She did not get the correct answer,
DanielleElmas [232]

Answer:

She rewrote the problem without parentheses: x3+ 2x2 - x + x3 – 2x2 +6

Step-by-step explanation:

It looks like she didn't fully distribute the -

(x3 + 2x2 - x)-(-x3 + 2x2 + 6) :Original

x3+ 2x2 - x + x3 – 2x2 +6 :Changed

~

(x3 + 2x2 - x)-(-x3 + 2x2 + 6)

x3 + 2x2 - x + x3 - 2x2 - 6

x3 + x3 + 2x2 - 2x2 -x - 6

2x3-x-6

I hope this helps ^-^

3 0
2 years ago
What is the final amount if 2250 is decreased by 2% followed by a further 3% decrease?
Marrrta [24]

Answer:

2138.85

Step-by-step explanation:

2250 decreased by 2% is

2% of 2250 subtracted from 2250

That’s

2% /100% x 2250

0.02 x 2250

45

So, decrease = 2250 - 45

= 2205

Now 2205 decreased by 3%

3% of 2205

3% /100% x 2205

0.03 x 2205

66.15

Decrease = 2205 - 66.15

= 2138.85

3 0
3 years ago
Read 2 more answers
X^2 + 4x + 4 = 0<br>please help!! I missed class! show steps!​
Stels [109]

Answer:

x= -2

Step-by-step explanation:

Step 1. In order to find the zeros of the function, we must factor it.

Step 2. To factor this, we have to find  two numbers that multiply to 4 and add to 4 which is 2 ( 2*2=4 and 2+2=4)

step 3. 0=(x+2)(x+2)

Step 4 make (x+2) equal to zero and solve which gives us -2, so -2 =x.

7 0
3 years ago
A sequence can be defined by the explicit formula . Which recursive formula represents the same sequence of numbers?
matrenka [14]

Answer:

c

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
James has 14{,}500\text { g}14,500 g14, comma, 500, start a text, space, g, end text of sand in his sandbox. He brings home anot
mariarad [96]

Question:

James has 14,500g of sand in his sandbox. He brings home another 7,400g of sand from the beach to add to his sandbox. How many kilograms of sand does James have in his sandbox now?

Answer:

The quantity of sandbox James has is 21.9kg

Step-by-step explanation:

Given

Initial quantity of sandbox = 14,500 g

Additional quantity = 7,400 g

Required

Total quantity of sandbox in kg

Tp get the total quantity of sandbox, we simply add in the initial and additional quantity of sandbox together;

This is represented mathematically as follows;

Total = Initial Quantity + Additional Quantity

Total = 14,500 g + 7,400 g

Total = 21,900 g

But the question says the answer should be in kg

1000 g is equivalent to 1 kg

21,900 g will be equivalent to \frac{21,900}{1,000} kg

21,900g = \frac{21,900}{1,000} kg

21,900g = 21.9 kg

Hence, the quantity of sandbox James has is 21.9kg

7 0
2 years ago
Other questions:
  • Increase $200 by 50%. PLEASE HELP ME!
    14·1 answer
  • Thinking about 1/4 why is 1/4 equal a quarter and a reference to a dollar
    11·1 answer
  • The least squares regression equation for the data in the table is
    10·1 answer
  • Mrs brown used 3 3/4 liters of water to completely fill 3 water bottles.If each water bottle holds the same amount, how many lit
    13·1 answer
  • What is the degree for five fourths of a right angle
    14·1 answer
  • Solve for y: when 3x + 2x+3y =180
    10·1 answer
  • 7, -3, , -0.8, 0.8, - , -2 <br> Order the numbers from least to greatest.
    5·2 answers
  • If f(x) = 2^x + 4 and g(x) = x^2 – 4 what is the value of f(5) +g(-3)
    13·1 answer
  • Type the correct answer in each box. Use numerals instead of words.
    14·1 answer
  • Choose whether the expression is a result of multiplying
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!