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trapecia [35]
3 years ago
11

Help please, right answers :)

Mathematics
2 answers:
GuDViN [60]3 years ago
6 0
B sorry if I’m wrong
lara31 [8.8K]3 years ago
5 0

B.I'm sorry if I'm wrong

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The expression x-y equals 0.7 if x and y have certain values. Evaluate the following expression with the same values of x and y
Arisa [49]

Answer:

<h2>3.5</h2>

Step-by-step explanation:

<h2>We already know that x-y equals to 0.7,</h2><h2>so 5(x-y) would just be 5(0.7), with this the answer would equal to 3.5. </h2>

<em>***I hope this helps and the explanation is helpful!***</em>

7 0
2 years ago
-1/2x-2y=4 what is the answer?
Radda [10]

Answer:

x=1/4(2+y)     y=-2- 1/4x

8 0
3 years ago
The diameter of this compact disc is 11.8cm. The hole in the middle has a area of 1.54cm2. What is the area of the plastic in th
Shalnov [3]
A=A_{disc}-A_{hole}\\A=\pi r^2-(1.54)\\A=\pi(5.9)^2-1.54\\A=34.81\pi -1.54\\A=109.358840271-1.54\\A=107.818840271

Area = 107.82 square inches.
4 0
3 years ago
7(6+d)=49 Solve for d.<br><br> A:d=7<br> B:d=-1<br> C:d=-7<br> D:d=1
Elan Coil [88]

Answer: d = 1

Step-by-step explanation:

First distribute the 7 to each term of (6 + d) = 42 + 7d = 49 now subtract 42 from both sides which = 7d = 7. Divide by 7 = 7d/7 = 7/7 = d = 1

3 0
3 years ago
Simplify the expression: -3b - 3b
Ksju [112]

Answer:

Step-by-step explanation:

-3b - 3b= (-3b)+(-3b)= -6b

6 0
2 years ago
Read 2 more answers
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