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iren2701 [21]
2 years ago
8

What is 5(x + 6)+11 =25 3x​

Mathematics
1 answer:
Talja [164]2 years ago
4 0

Answer:

x=-\frac{16}{5}

Step-by-step explanation:

5(x+6)+11=25

Use the distributive property to multiply 5 by x+6.

5x+30+11=25

Add 30 and 11 to get 41.

5x+41=25

Subtract 41 from both sides.

5x=25−41

Subtract 41 from 25 to get −16.

5x=−16

Divide both sides by 5.

x=-16/5

Fraction -16/5 can be rewritten as -16/5 by extracting the negative sign.

x = -\frac{16}{5}

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The Distributive Property also combines subtraction and multiplication. for example, . 3 * ( 5 - 2 ) = ( 3 * 5 ) - ( 3 * 2 ).
Sholpan [36]
So the problem ask to find or solve the problem using distributive property, so to calculate if using distributive property is just the same calculation if you are multiplying two number using a paper so the answer is 5(8)+5(90)+5(100), 40+ 450+500 = 990. I hope you understand my answer 
6 0
3 years ago
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1/2x + 1= -19<br><br>need help...... thank u guys have and amazing day<br>​
LenKa [72]

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Combine multiplied terms into a single fraction

1

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5 0
3 years ago
Pick 3 cards from a standard 52-card deck. Find the P(of at least 1 red card).
kkurt [141]

Answer:P(BBR) = 1/2 × 25/51 × 26/50 = 13/102 if cards are not replaced.

P(RBB) = 1/2 × 26/51 × 25/50 (simplified 1/2) = 13/102

P(BRB) = 1/2 × 26/51 ×25/50 (simplified 1/2) = 13/102

Step-by-step explanation: P(B) at first step is 26 cards out of a possible 52 therefore 26/52 (or simplified 1/2). We then have 25 black cards left out of a possible 51 therefore 25/51. The final card then has to be red to meet the criteria, we have 26 red cards still out of a possible 50 therefore 26/50.

This would be an example of binomial probability as at each step there are only 2 options R or B.

8 0
3 years ago
.
ryzh [129]

Answer:

(1 ) Inner curved surface area of the well is  109.9 sq. meters.

(2) The cost of plastering the total curved surface area is  4396.

Step-by-step explanation:

The inner diameter = 3.5 m

Depth of the well =  10 m

Now, Diameter = 2 x Radius

⇒R = D/ 2  = 3.5/2 = 1.75

or, the inner radius of the well = 1.75 m

CURVED SURFACE AREA of cylinder = 2πr h

⇒The inner curved surface area =  2πr h  = 2 ( 3.14) (1.75)(10)

                                                                      = 109 sq. meters

Hence, the inner curved surface area of the well is  109.9 sq. meters.

Now, the cost of plastering the curved area is 40 per sq meters

So, the cost of total plastering total area = 109.9 x(Cost per meter sq.)

                                                                    =  109.9 x (40)

                                                                   =   4396

Hence, the cost of plastering the total curved surface area is  4396.

8 0
3 years ago
sara is working on a project for her sewing class. she is making a stuffed pair of dice. how much material will she need to buy
Korvikt [17]

Answer:

Step-by-step explanation:

5 0
3 years ago
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