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blagie [28]
3 years ago
15

Ryan bought an iPhone and some cases for

Mathematics
2 answers:
kari74 [83]3 years ago
7 0

Answer:

5

Step-by-step explanation:

1245-850=395, 395/79=5

tiny-mole [99]3 years ago
4 0

Answer:

5 cases

Step-by-step explanation:

To find the case amount we must take the iphone out of the equation like this

1245-850 = 395

This leaves us with $395 and if each case costs $79 we must divide like this

395 / 79 = 5

Which leaves us with 5, so that must mean that Ryan bought 5 cases.

Hope this helps ( :

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-2xy^2-4xy+6xy^2<br> please show work
babunello [35]

Answer 1

steps. first of record and gather like terms (-2xy^2+6xy^2)-4xy

next collect coefficient like terms (-2+6)x Xy^2-4xy

then calculate the sum or difference 4xy^2-4xy

3 0
2 years ago
State the number of real zeros and what they are for "3x^2+5x-2" pleas help me:'(
Lady bird [3.3K]
This can be solved by factoring.

First, set the expression equal to zero.

3x^2+5x-2=0

Then, find two the factors of  ac whose sum is b.

6, -1

Split b into these two factors.

3x^2+6x-x-2=0

Next, factor by grouping.

3x(x+2)-1(x+2) = (3x-1)(x+2) = 0

By the Zero Product Property, set each factor equal to zero.

3x-1 = 0 \\ x = 1/3

x+2=0 \\ x = -2

These are the solutions. The Complex Conjugate Root Theorem and the Fundamental Theorem of Algebra both state that, in essence, real and imaginary solutions come in pairs of two and every polynomial of degree n has exactly n complex roots, but real roots are also complex roots. That sounds confusing, but this just means that you're done. Your answers are -2 and 1/3. There are two real roots.
3 0
3 years ago
For the given expression, which whole number (w) will make the expression true? 5/6
Sonja [21]

Answer:

D. 7

Step-by-step explanation:

The question is incomplete. Here is a possible complete question

For the given expression, which whole number (w) will make the expression true? 5/6 < w/6

A. 3

B. 4

C. 5

D. 7

Given the inequality expression:

5/6 < w/6

Cross multiply

5×6 < 6×w

30<6w

Divide both sides by 6

30/6 = 6w/6

5<w

Reciprocate both sides(this will change the sense of the inequality)

1/5>1/w

Cross multiply

w > 5×1

w>5

This shows that the value of w is a value greater than 5 but not 5. According to the option, the only value greater than 5 is 7. Hence the whole number (w) that will make the expression true is 7

7 0
3 years ago
Please answer fast i really need this
frosja888 [35]
We will need like a graph for that
8 0
3 years ago
What is the correct answer? <br> AD||BC <br> DC||AB <br> None
anygoal [31]

DC||AB is the answer

3 0
3 years ago
Read 2 more answers
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