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3 years ago

The sum of three consecutive odd numbers is 183. What is the second number in the sequence?

Mathematics

1 answer:

atroni [7]3 years ago

5 0

Answer:

Step-by-step explanation:

If you want only the middle number, then call it x

the largest of the 3 is x + 1

The smallest of the 3 is x - 1

Add

x + 1 + x - 1 + x = 183 Cancel the 1s out.

x + x + x = 183 Combine the like terms on the left

3x = 183 Divide by 3

x = 183/3 Do the division

x = 61

The middle number is 61

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Martha has $20 to spend on a t-shirt. She has a coupon for 20% off. The t-shirt regularly sells for $22.50 plus 10% sales tax.

rodikova [14]

Answer:

1 and 3

Step-by-step explanation:

Step 1 is clearly elaborated. Tax is impliedd on the discounted price.

In step 3, the steps of deductions are skipped.

Like 1 + 10% = 110% and 1 - 20% = 80%

Step 2 is simply wrong. Because the percentages are implied on different values.

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3 years ago

Teddy has 6 lollipops and 9 cookies. Annie say for every 3 lollipops there are 2 cookies. Teddy says I don’t agree. What mistake

inn [45]

Answer:

She switched her say

Step-by-step explanation:

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2 years ago

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3 years ago

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The weight Wkg of a metal bar varies jointly

maria [59]

Answer:

d = $\sqrt{\frac{216W}{35L} }$

Step-by-step explanation:

Given that W varies jointly as L and d² then the equation relating them is

W = kLd² ← k is the constant of variation

To find k use the condition W = 140 when d = 4 and L = 54, thus

140 = k × 54 × 4² = 864k ( divide both sides by 864 )

$\frac{140}{864}$ = k , that is

k = $\frac{35}{216}$

W = $\frac{35}{216}$ Ld² ← equation of variation

Multiply both sides by 216

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d = $\sqrt{\frac{216W}{35L} }$

6 0

2 years ago

Which equation is correct? 2x+38) - 5x +4 A 7x - 41 B 7x + 41 C 36x - 2<br>or just write your own

bija089 [108]

Answer:

$-3x+42$

Step-by-step explanation:

$(2x+38) - 5x +4$

$2x+38 - 5x +4$

$2x+38+ - 5x +4$

$2x+-5x+38+4$

$-3x+42$

5 0

3 years ago