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Katarina [22]
3 years ago
8

7/9−1/4 i need a answer now

Mathematics
2 answers:
Paraphin [41]3 years ago
7 0

Answer:

0.527....

Step-by-step explanation:

STALIN [3.7K]3 years ago
4 0

Answer:

7/9- 1/4

Step-by-step explanation:

Así que es esto, tienes que dividirlos, agregarlos y luego subratc, así que espero que esto ayude por un bye eek ooop 20 work limit

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Serena brought a total of 135 notebooks and pencils for her students. Each notebook cost 1.75 and each pencil cost 0.35. The tot
natima [27]

Answer:

81 pencils

Step-by-step explanation:

1. Set up variables

Pencils = p

notebooks= n

2. Set up a system of equations

p+n= 135                             (The amount of supplies bought)

1.75n +0.35p = 122.85       (Equation for the cost)

3. Solve the system of equations (I'll use substitution)

    a)p= 135-n  (I just rearranged it)

    1.75n + 0.35p= 122.85

     b) Substitute the first equation into the second)

    1.75n + 0.35(135-n) = 122.85

     c) Solve!

    1.75n + 47.25 - 0.35n = 122.85

    1.4n = 75.6

     n= 54

Serena bought 54 notebooks!

4. Substitute the number of notebooks into the first equation

p +n = 135

p + 54= 135

p = 81

Serena bought 81 pencils!!!

I hope this helps!!!!

7 0
3 years ago
Read 2 more answers
Why is ti that when you add two numbers together (5+5,6+6,3+3, etc.) you get an even sum?? I need this for my 8 year-old-brother
astra-53 [7]

Essentially, the rule goes as so: odd + odd = even, even + even = even.

Although that may not be the answer you're looking for, it is a math rule that is never debunked and essentially the premises for why you get an even sum practically always depending on the numbers.

Hope this helps!

3 0
3 years ago
Read 2 more answers
A. 4/5+2/3<br> B. (4/5)(2/3)<br> C. 4/5-(-2/3)
katrin [286]

Answer:

<h3>A. 22/15</h3><h3>B. 8/15</h3><h3>C. 22/15</h3>

A. ---> 4/5 + 2/3 = (12+10)/15 = 22/15

B. ---> 4/5*2/3 = 8/15

C. ---> 4/5-(-2/3) = 4/5 + 2/3 = (12+10)/15 = 22/15

Step-by-step explanation:

<h3>Hope it helps!!</h3>
4 0
3 years ago
Read 2 more answers
Hello, this is the owner sister, but can you please help me?b Please dont remove this for silly things
kondaur [170]
The answer is 825

*Substituted formula is*
30 x (10 + 15) + 5 x 5/2 x 2 + 5 x (30 -(5 x 2)
7 0
3 years ago
A banquet hall is being set up for a reception. Each round table will have 6 chairs and each rectangular table will have 10 chai
olga_2 [115]

Answer:

in picture

Step-by-step explanation:

— Round tables will have 6 chairs, rectangular tables will have 10 chairs, the total number of chairs must be at least 185: 6x +10y ≥ 185

— There be no more than 15 rectangular tables: y ≤ 15

— No fewer than 6 round tables: x ≥ 6

— Rectangular tables must be at least 1/3 the number of round tables: y ≥ (1/3)x ⇒ 3y ≥ x

8 0
3 years ago
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