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Murljashka [212]
3 years ago
12

What is 2x+2y if x+2y=6 and x+y=10

Mathematics
1 answer:
irina1246 [14]3 years ago
8 0
X=-2y+6
-2y+6+y=10
-y+6=10
-y=4
y=-4
X=14

2(14) + 2(-4)=28- -8=28+8=36

Answer is 36 I think
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The trapezoid in the figure has equal nonparallel sides. The upper base is 6, the lower base is 16, and the diagonal is 12. What
____ [38]

To find this I would use the pythagorean theorem which is:

a^2 + b^2 = c^2

Since we already know c = hypotenuse, and a side of the shorter sides we can plug them it like this:

11^2 + b^2 = 12^2

121 + b^2 = 144

b^2 = 23

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Round:

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5 0
3 years ago
1. If you wanted to make a triangle with side lengths of 3 units, 3 units, and 4
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Answer:

Since 4 is the largest number its the hypotenuse. The two 3s are equal so they are interchangeable so it doesn't matter where you put them. If its a right triangle the hypotenuse is opposite the right angle.

Step-by-step explanation:

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ivann1987 [24]

Answer:1

Step-by-step explanation:

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3 years ago
Estimate the sum 8/10 + 1/9
RideAnS [48]

Answer:

41/45

Step by Step Explanation:

Add: 8/

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9

= 8 · 9/

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90

+ 10/

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For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of both denominators - LCM(10, 9) = 90. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 10 × 9 = 90. In the following intermediate step, cancel by a common factor of 2 gives 41/

45

.

In other words - eight tenths plus one ninth = forty-one forty-fifths.

8 0
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The elephant lost 4 pounds each month. Because he is losing weight, and not gaining weight, you have to make the answer negative
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