3 years ago

Simplify the expression (2b + 3r) + (4b + r)

Mathematics

1 answer:

liberstina [14]3 years ago

8 0

The simplified expression is 6b+4r

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A set of cards has 8 red cards, 6 blue cards, and 1 green card. Paula chooses a card without looking. What is the probability th

3241004551 [841]

Answer:

8/15 = 0.53 = 53%

Step-by-step explanation:

The probability is the number of chances divided by the total number of cards. The total number of cards is 8 + 6 +1 = 15. There are 8 red cards and therefore 8 chances to get red.

8 out of 15 cards is 8/15. The probability is 8/15.

5 0

4 years ago

5y^2+5−4−4y^2+5y^2−4x^3 −1

vredina [299]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{4 {x}^{3} + 6 {y}^{2} }}}}}$

Step-by-step explanation:

$\sf{5 {y }^{2} + 5 - 4 - 4 {y}^{2} + 5 {y}^{2} - 4 {x}^{3} - 1}$

Collect like terms

⇒ $\sf{ 4 {x}^{3} + 5 {y}^{2} - 4 {y}^{2} + 5 {y}^{2} + 5 - 4 - 1}$

⇒ $\sf{4 {x}^{3} + {y}^{2} + 5 {y}^{2} + 5 - 4 - 1}$

⇒ $\sf{4 {x}^{3} + 6 {y}^{2} + 5 - 4 - 1}$

Calculate

⇒ $\sf{4 {x}^{3} + 6 {y}^{2} + 1 - 1}$

⇒ $\sf{4 {x}^{3} + 6 {y}^{2} }$

Hope I helped!

Best regards! :D

6 0

3 years ago

The number 20 is multiplied either by 4 or by 5, then the product is increased either by 3 or by 5, and then the sum is divided

tigry1 [53]

15 I know this because my brain told me that this is the correct answer so my fingers are giving you the correct answer in return for brainliest

4 0

2 years ago

The figure below shows a circular park. Its radius is 18 yd.

Naddika [18.5K]

Radius=r=18yd

Circumference

2πr
2(18)(3.14)
36(3.14)
113.04yd

Area

πr²
π(18)²
324π yd²

3 0

3 years ago

Read 2 more answers

What is the least common factor of 60,66

Ilia_Sergeevich [38]

Answer:3

Step-by-step explanation: 60/6=10

66/6=11

60/3=20

66/3=22 you double the numbers of the quotient which halves the factor.

4 0

3 years ago