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cluponka [151]
3 years ago
14

Anyone help me with this?

Mathematics
1 answer:
den301095 [7]3 years ago
4 0

h = 4(x+3y) + 2

4×x = 4x

4×3y= 12y

4x+12y+2

x= \frac{12y+2}{4} \\\

tell me if im wrong

ignore the last bit, x=$

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Which expression represents a negative number?
lina2011 [118]

Its C.

Negative x Negative is positive, so its not A or D.

Positive x Positive is Positive, so its not B either.

C is your option because Positive x Negative is Negative, and vice verca.

6 0
2 years ago
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A business was valued at £80000 at the start of 2013. In 5 years the value of this business raised to £95000. this is equivalent
dedylja [7]

Answer:

20%

Step-by-step explanation:

Value increased in 5 years =  £95000 -  £80000 = £5000

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3 years ago
The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. Th
Mila [183]

Answer:

The calculated t-value is t=0.47.

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>"Americans typically eat quickly and do not spend time enjoying their meal. A researcher plans to test if those trained in mindfulness will take more time to enjoy their meal (that is, they will spend more time eating than the general population). The general population spends an average of 68 minutes per day combined eating their three meals. The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. The sample mean for those trained in mindfulness equals 74; the SS = 150. What is the calculated t-value? Round your answer to two decimal places."</em>

The degrees of freedom are (n-1)=(16-1)=15

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s=\sqrt{\frac{SS}{n-1}}=\sqrt{\frac{150}{16-1}}=\sqrt{10}=3.16

The t-value can be calculated as:

t=\frac{M-\mu}{\sigma/\sqrt{n}} =\frac{74-68}{3.16/\sqrt{16}} \\\\t=\frac{6}{3.16*4}=\frac{6}{12.64}= 0.47

4 0
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egoroff_w [7]
Wouldnt it be 7 bc 7*6 is 42
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Bezzdna [24]

Answer: Jane sells beaded bracelets for $2 each and beaded necklaces for $4 each. She sold 50 pieces of jewelry at the craft fair last weekend and made $160.

Step-by-step explanation: I just answer this and it's correct.

4 0
3 years ago
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