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ELEN [110]
3 years ago
10

A wire is (7x – 3) meters long. A length of (3x – 4) meters is cut for use(a) How much wire is left?

Mathematics
1 answer:
ipn [44]3 years ago
6 0

Answer:

The amount of wire left is 4x + 1

Step-by-step explanation:

Initially, the wire is (7x - 3) meters long.

A length of (3x - 4) meters is cut.

How much wire is left?

Initial amount subtracted by the amount that is cut. So

(7x - 3) - (3x - 4) = 7x - 3 - 3x + 4

We combine the like terms

7x - 3x - 3 + 4 = 4x + 1

The amount of wire left is 4x + 1

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Please help with this!!
Harrizon [31]

Answer:

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68 | 86 | 104 | 122 | 140 | 158 | 176 | 194 | 212 | 230 | 248 | 268

Step-by-step explanation:

Ok so, the top part of the table is probably going to be the number of months. The cost of the video streaming is linear and follows the equation

cost = 18*cost per month + initial cost

or

cost = 18(number of months) + 50

Using  the table which they gave, enter the number of months at the top, and enter the cost at the bottom. I've gaven the answer already. The months go to welve, and the answer goes into the bottom.

Comment on my answer if it doesn't make sense.

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8 0
3 years ago
A nursery has $50,000 of inventory in dogwood trees and red maple trees. The profit on a dogwood tree is 27% and the profit on a
nasty-shy [4]

Answer:

Sorry do not have your answer

Step-by-step explanation:

5 0
2 years ago
Donald is 38 years younger than Natalie. 5 years ago, Natalie's age was 3 times Donald's age. How old is Donald now?
Svetlanka [38]

9514 1404 393

Answer:

  24

Step-by-step explanation:

Let d represent Donald's age now. Then Natali's age now is d+38. The age relationship 5 years ago was ...

  (d+38) -5 = 3(d -5)

  d +33 = 3d -15 . . . . . eliminate parentheses

  48 = 2d . . . . . . . . . . . add 15-d

  24 = d . . . . . . . . . . . . . divide by 2

Donald is 24 years old now.

_____

<em>Alternate solution</em>

You can also work this by considering that 5 years ago, Natalie's age was more than Donald's age by twice Donald's age then. Hence Donald was 38/2 = 19 at that time. Now, Donald is 19+5 = 24.

4 0
3 years ago
If we know the values of the sine and cosine of x and y, we can find the value of cos(x - y) by using the ____ Formula for Cosin
kolbaska11 [484]

Answer:

\cos(x - y) = \cos(x)\cos(y) + \sin(x)\sin(y)

Step-by-step explanation:

Given

\cos(x - y)

Required

State the formula

From trigonometry identity, the formula of \cos(x - y) is:

\cos(x - y) = \cos(x)\cos(y) + \sin(x)\sin(y)

5 0
3 years ago
What is 99 x 76 solve
Alla [95]
99*76=7524
Hope this helps.
6 0
3 years ago
Read 2 more answers
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