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Ket [755]
3 years ago
15

How do I regroup the addends for associative property (5 + 6) + (4 + 7) + 3

Mathematics
1 answer:
spayn [35]3 years ago
5 0

Answer:

(7 + 3) + (6 + 4) + 5 I don't know if hits right but I tried

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Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = 2 cos 3θ
Allushta [10]

Answer:

y-axis

Step-by-step explanation:

Theta = 10

2cos(30) = sqrt(3)

Theta = -10

2cos(-30) = sqrt(3)

Theta = 180 - 10 = 170

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3 years ago
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Solve the rational equation: 7 - 2/x = 4 + 10/x
vlabodo [156]

Answer:

7 - 2 / x = 4 + 10 / x

or , 7 - 4 = 10 / x + 2 / x

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A plane takes off and climbs steadily for 15 minutes until it
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Step-by-step explanation:

Mark each mark by 15 mins add an extra tick at the time section

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4 0
3 years ago
A fruit company delivers its fruit in two types of boxes: large and small. A delivery of
Tema [17]

Answer:

Small box weighs 13.75 kg & large box weighs 15.75 kg

Step-by-step explanation:

We can write 2 simultaneous equation and solve for weight of each box.

<em>Let weight of large box be l and small box be s.</em>

<em />

"<u>3 large boxes and  5 small boxes has a total weight of  116 kilograms</u>":

3l+5s=116

and

"<u>9 large boxes and  7 small boxes has a total weight of  238 kilograms</u>":

9l+7s=238

<em>Now we can solve for l in the 1st equation and put it into 2nd equation and get s:</em>

<em>3l+5s=116\\3l=116-5s\\l=\frac{116-5s}{3}</em>

<em>now,</em>

<em>9l+7s=238\\9(\frac{116-5s}{3})+7s=238\\3(116-5s)+7s=238\\348-15s+7s=238\\348-238=15s-7s\\110=8s\\s=\frac{110}{8}=13.75</em>

<em />

<em>now we plug in 13.75 into s into equation of l to find s:</em>

<em>l=\frac{116-5s}{3}\\l=\frac{116-5(13.75)}{3}\\l=15.75</em>

5 0
3 years ago
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