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
sveticcg [70]
2 years ago
7

Find two mixed numbers so that the sum is 7 2/8 and the difference is 2 4/8

Mathematics
1 answer:
olga_2 [115]2 years ago
6 0
So let's name the numbers x and y.

we know that their sum, x+y is 7\frac{2}{8}

and that that their difference, x-y is 2\frac{4}{8}

so, from the last one we can find out x:

x-y=2\frac{4}{8}
x=2\frac{4}{8}+y


we can substitute this into the first one:

2\frac{4}{8}+y+y = 7\frac{2}{8}

2\frac{4}{8}+2y = 7\frac{2}{8}

2y=4\frac{6}{8} (7-2=5, but you have to "borrow" one because the fraction of the number from which you substract is smaller than of the other number)

so y=2\frac{3}{8}

then x will be
x=2\frac{4}{8}+2\frac{3}{8}
x=4\frac{7}{8}









You might be interested in
PLEASE HELP ITS URGENT!!<br> Given: △ABC is isosceles; 1 ≅ 3<br> Prove: AB || CD
Dmitrij [34]

Answer:

AB ║ CD. (Proved)

Step-by-step explanation:

See the attached diagram of the triangle.

It is given that Δ ACD is an isosceles triangle.

Therefore, AC = AD and ∠ ACD = ∠ ADC, ⇒ ∠ 3 = ∠ 4 .......... (1)

Again, given that ∠ 1 = ∠ 3 ........... (2)

Now, from equations (1) and (2) we can write, ∠ 1 = ∠ 4

Now, AB and CD are two straight lines and AD is the transverse line and hence, ∠ 1 and ∠ 4 are alternate angles that are equal.

Therefore, AB and CD are parallel straight lines and AB ║ CD. (Proved)

4 0
3 years ago
Fifteen times the square of a non-zero number is equal to 15 times the number
defon
15·x²=15·x so 
x²=x 
x·x=x  with x≠0 than x must be 1 
x=1
5 0
2 years ago
Read 2 more answers
Help me please ❤️❤️❤️❤️
melomori [17]

In a quadratic function, f(x)= ax^2+bx+c the leading coefficient is a, i.e. the coefficient of x^2, and the constant term is c, i.e. the coefficient without any power of x.

So, if you want leading coefficient 2 and constant term -3, your function needs to be like

f(x)=2x^2+bx-3

for any value of b. Among your options:

  • The first is not a quadratic (it starts with x^3)
  • The second has leading term -3 and constant term 2
  • The third is not a quadratic (same as the first)
  • The last is correct.
4 0
3 years ago
Jason went shopping.
melomori [17]

53.55 / 85 = 0.63

0.63 * 100 = 63

63 - 38 = 25

watch was 25 before discount

8 0
2 years ago
Someone sells a product for 10 cents and he sells 1000 products, how much money did he earn
zheka24 [161]

Answer:

$100

Step-by-step explanation:

  1. 10¢ × 1,000 = 10,000¢
  2. To convert to dollars: Cents ÷ cents in 1 dollar
  3. To convert to dollars: 10,000¢ ÷ 100¢ = $100

I hope this helps!

3 0
3 years ago
Read 2 more answers
Other questions:
  • What's the answer for p2 when p=25 ​
    5·2 answers
  • A leaky valve on the water meter overcharges the residents for one gallon of water every 1 1 over 3 months. The overcharged amou
    7·2 answers
  • Ever notice how there are practically no nines in pi? it's true. what's the longest continuous sequence not containing a nine in
    11·1 answer
  • Connie's dog fido weighs 35 pounds. Her vet placed fido on a diet. What inequality can you write to find the average number of p
    14·1 answer
  • Find an ordered pair ( x,y ) that is a solution to the equation.<br><br><br> 6x-y=1
    14·1 answer
  • Can someone explain to me 4(7q+3)
    12·2 answers
  • What’s the volume of this cube?
    9·1 answer
  • R' (-1, 9) is the image of R after a reflection in the x-axis. What are the coordinates of R?
    9·1 answer
  • Please help me aaaaaaaaaa
    9·2 answers
  • Please help me im begging you help me i beg u :(
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!