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olya-2409 [2.1K]
3 years ago
6

What number is equal to 2.8 - 4 ÷ 4? 02 03 O 14 O 15​

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
8 0

Answer:

1.8

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

2.8 - 4 ÷ 4

<u>Step 2: Evaluate</u>

  1. Division:                                                                                                             2.8 - 1
  2. Subtraction:                                                                                                      1.8
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Determine three fractions that are equivalent to 1/5 Explain how you know
olga nikolaevna [1]

Answer:

2/10, 4/20, 8/40

Step-by-step explanation:

multiply the numerator and denominator by the same number.

It would be the reverse of reducing to the lowest denominator.

8 0
3 years ago
Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
Dafna1 [17]

Answer:

1/4

Step-by-step explanation:

When rolling two dice there are 36 possible outcomes

The results that would fit the outcome of 2 even numbers

(2,2)(2,4)(2,6)(4,2)(4,4)(4,6)(6,2)(6,4)(6,6).

P ( even, even) = (number of even, even outcomes)/ total

                         = 9/ 36

                            =1/4

3 0
3 years ago
Y=2x+1 x+y=7 pls help meeeeeeeee
Gala2k [10]

Answer:

y=2,\:x=\frac{5}{2}

Step-by-step explanation:

\begin{bmatrix}x+1\cdot \:x+y=7\\ y=2\end{bmatrix}

x+1· x+2=7

Simplify x+1· x+2:    2x+2x+1· x+2

Add similar elements: x+1· x=2x=2x+2

2x+2=7[ 2x+2=7 ]

Isolate x for 2x+2=7:    x=52 2x+2=7

Subtract 2 from both sides

2x+2−2=7−2

Simplify

2x=5

Divide both sides by 2

2x2 =52 Simplify

5 0
3 years ago
Read 2 more answers
Whats the answer to this plz help​
lozanna [386]

Answer:

a1 = 1

an = an-1 * -5

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
If the product of two positive fractions a and b is 15/56, find three pairs of possible values for a and b
Andrews [41]

Answer:

First possible pairs = (3/7)*(5/8) = 15/56

second possible pairs = (3/4)*(5/14) = 15/56

third possible pairs = (1/2)*(15/28) = 15/56

Step-by-step explanation:

According to the question,

a x b = 15/56

three possible pairs will be as follows:

Before proceeding to make possible pairs, we have to know the prime factorization of the numbers -

15 = 1, 3, 5, 15

56 = 1, 2, 4, 7, 8, 14, 28, 56

As we need three possible pairs, we have to check which pairs take us to 15/56. Again, since the fraction is positive, therefore, the fractions will be proper. Therefore, 3/2, or 5/4 will not be counted. Therefore,

First possible pairs = (3/7)*(5/8) = 15/56

second possible pairs = (3/4)*(5/14) = 15/56

third possible pairs = (1/2)*(15/28) = 15/56

fourth possible pairs = (3/8)*(5/7) = 15/56

So, we can get those four possible pairs. Among those, first 3 pairs are different. Therefore, those are possible pairs.

4 0
2 years ago
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