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2 years ago

Combine like terms and simplify 4r - 6 - 2r + 5

1 answer:

4 0

C. 10r-3

Because 2r+5=7, the minus 6 and 7 which gives you 1 then minus 4 and 1 witch is 3 then you do 10r-3 and it will get you to 2r+5=7 again. I hope this helped!

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"Define a variable write an inequality and solve each problem".A number +1 is greater than -5 less than three.

Brrunno [24]

Answer: -5 < x + 1 < 3

Step-by-step explanation:

Let x be the number.

-5 < x + 1 < 3

4 0

2 years ago

A cell phone company has three different production sites.

dlinn [17]

Answer:

3/11

Step-by-step explanation:

given that a cell phone company has three different production sites

Site name 1 2 3 Total

Production 60% 30% 10% 100%

Recalled 5% 7% 9%

Prob for recall 0.003 0.021 0.009 0.033

Total probability for recall = 0.033

Prob for recall and came from site 3 = 0.009

So required probability

= If a randomly selected cell phone has been recalled, what is the probability that it came from Site 3

= $\frac{0.009}{0.033} \\=\frac{3}{11}$

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3 years ago

What is the area of this parallelogram?

Mariulka [41]

Answer:

25 cm

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

How can I find a? (Trigonometric Ratios)

earnstyle [38]

Step-by-step explanation:

Hey there!

Use cos ratio to find the value of 'a'.

As per given, we can state that it is a Right angled triangle, so taking 38° reference angle.

We get;

p = AC

b = 6

and h= a

Here, Use the value of b, h and 38° angle to find the value of a.

$\cos(38° ) = \frac{b}{h}$

$\cos(38°) = \frac{6}{a}$

$0.7881 = \frac{6}{a}$ [ cos(38°=0.7881]

$0.7881a = 6$

$a = \frac{6}{0.7881}$

Therefore the measure of a is 7.61 Or 8.

Hope it helps..

6 0

2 years ago

A movie theater sells student tickets for $5 and adult tickets for $10. On Saturday night, 2,500 people go to the theater and ti

Bezzdna [24]

The problem says that 2500 people went, out of all the answers choices which choice gives you the total of 2500 when you add the adults and children.

Answer is B because 1100 + 1400 = 2500

6 0

2 years ago