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3 years ago

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Jon and Lexi are playing a marble game. According to their rules, 6 points are awarded for each red marble collected and 2 point

s are awarded for each blue marble collected. Which expression represents Jon's total score if he has r red marbles and b blue marbles? (1 point)

1 answer:

MAXImum [283]3 years ago

5 0

The expression would be 6r + 2b.

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Anyone know the answer ?

lisov135 [29]

Answer:

n = 7

Step-by-step explanation:

$Area \: of \: \triangle = \frac{1}{2} \times base \times height \\ \\ 12 = \frac{1}{2} \times (n + 5) \times (n + 5 - 10) \\ \\ 12 \times 2 = (n + 5)(n - 5) \\ \\ 24 = {n}^{2} - {5}^{2} \\ \\ 24 = {n}^{2} - 25 \\ \\ 24 + 25 = {n}^{2} \\ \\ {n}^{2} = 49 \\ \\ n = \pm \: \sqrt{49} \\ \\ n = \pm \: 7 \\ \\ n = - 7 \: \: or \: \: n = 7 \\$

6 0

2 years ago

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Help me <br> 3.9x0.5+4 5/6 / 3 3/7

sergey [27]

3.9 · 0.5 + 4 5/6 ÷ 3 3/7
1.95 + 4 5/6 ÷ 3 3/7 multiplication left ot right
1.95 + 29/6 ÷ 24/7 convert to improper fraction
1.95 + 29/6 · 7/24 divide by fraction same as multiplication by reciprocal
1.95 + 203/144 multiply
1.95 + 1.40 (and a teensy bit more)
3.35

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2 years ago

If the distance from C to C' is 8 and the scale factor is 5. What is the distance from A to C?

Annette [7]

If c & c is 8 then to a and c it’s six if the scale factor is 5

8 0

2 years ago

Write 11 k-6 (2k+5)in expanded form and find the sum

marshall27 [118]

Answer:

Option B

Step-by-step explanation:

Expression representing the series is,

$\sum_{k=6}^{11}(2k+5)$

Here, k = Number of terms

By placing k = 6, 7, 8, 9, 10, 11 in the expression we can get the terms of the series.

For k = 6,

(2k + 5) = 2(6) + 5

= 17

For k = 7,

(2k + 5) = 2(7) + 5

= 19

For k = 8,

(2k + 5) = 2(8) + 5

= 21

For k = 9,

(2k + 5) = 2(9) + 5

= 23

For k = 10,

0(2k + 5) = 2(10) + 5

= 25

For k = 11,

(2k + 5) = 2(11) + 5

= 27

Therefore, expanded form will be,

17, 19, 21, 23, 25, 27

There, is a common difference in each successive to previous term,

d = 19 - 17

d = 2

Number of terms 'n' = 6

First term = 17

Sum of an arithmetic sequence is given by,

$S=\frac{n}{2}[2a+(n-1)d]$

Therefore, sum of the given sequence will be,

$S=\frac{6}{2}[2(17)+(6-1)2]$

= 3(34 + 10)

S = 132

Option B will be the correct option.

4 0

2 years ago

How do u solve -18-6k=6 (1+3k)

Anarel [89]

Let's solve your equation step-by-step.<span><span><span>−18</span>−<span>6k</span></span>=<span>6<span>(<span>1+<span>3k</span></span>)

</span></span></span>Step 1: Simplify both sides of the equation.
<span><span><span>−18</span>−<span>6k</span></span>=<span>6<span>(<span>1+<span>3k</span></span>)
</span></span></span><span>Simplify: (Show steps)</span><span><span><span>−<span>6k</span></span>−18</span>=<span><span>18k</span>+6

</span></span>Step 2: Subtract 18k from both sides.<span><span><span><span>−<span>6k</span></span>−18</span>−<span>18k</span></span>=<span><span><span>18k</span>+6</span>−<span>18k</span></span></span><span><span><span>−<span>24k</span></span>−18</span>=6

</span>Step 3: Add 18 to both sides.<span><span><span><span>−<span>24k</span></span>−18</span>+18</span>=<span>6+18</span></span><span><span>−<span>24k</span></span>=24

</span>Step 4: Divide both sides by -24.<span><span><span>−<span>24k</span></span><span>−24</span></span>=<span>24<span>−24</span></span></span><span>k=<span>−1

</span></span>Answer:<span>k=<span>−<span>1</span></span></span>

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2 years ago

Read 2 more answers