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Mamont248 [21]
2 years ago
9

-7 2/3 + (-5 1/2) + 8 3/4

Mathematics
1 answer:
kolbaska11 [484]2 years ago
3 0
The answer is -4 5/12 negative four and five twelfths
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Can you help me please as soon as possible :)
Trava [24]

Answer:

what r u finding the surface area or what?

Step-by-step explanation:

6 0
2 years ago
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Find two consecutive integers such that the sum of the greatest integer and twice the lesser integer is 40.​
ziro4ka [17]

Answer:

13 and 14.

Step-by-step explanation:

So we have two consecutive integers.

Let's call the first integer a.

Since the integers are consecutive, the other integer must be (a+1) (one more than the last one).

We know that the sum of the greatest integer (or a+1) and twice the lesser integer (a) is 40. Therefore, we can write the following equation:

(a+1)+2(a)=40

The first term represents the greatest integer. The second term represents 2 times the lesser integer. And together, they equal 40.

Solve for a. Combine like terms:

a+1+2a=40\\3a+1=40

Subtract 1 from both sides. The 1s on the left cancel:

(3a+1)-1=(40)-1\\3a=39

Divide both sides by 3:

\frac{3a}{3}=\frac{39}{3}\\a=13

Therefore, a or the first integer is 13.

And the second integer is 14.

And we can check:

14+2(13)=14+26=40

8 0
3 years ago
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A surveyor needs to determine the height of a tree. She places a mirror on the ground and paces backwards until she sees the top
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She then measures the distance from the mirror to the base of the tree ... backwards until she sees the top of the tree reflected in the mirror.
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20 points!<br> I need help on these!
charle [14.2K]
16) -40
17) -2
18) -5
19) -10
That’s all.
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Solve for in terms of A and w. A=w
arlik [135]

Answer:

Step-by-step explanation:

Given A = w:

w in terms of A is w = A, and

A in terms of w is A = w

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