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salantis [7]
3 years ago
10

Evaluate -x + 4y when x =

Mathematics
1 answer:
ale4655 [162]3 years ago
3 0

Answer:

8

Step-by-step explanation:

-4/5+4(1)/3 = -4/5 + 4/3

L.C.M = 15

then -12+20/15 = 8/15

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kirza4 [7]
Answer: $2.26
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4 0
3 years ago
Find the values forX, Y, and Z so that all the following statements are true.
kvasek [131]

Answer:

x = -36, y = 6, z = -6

Step-by-step explanation:

The requirement x/z = -z means x = -z².

The requirement x/y = z means x = yz.

These two requirements together mean yz = -z², or y = -z.

The requirements that z/2 and z/3 are integers mean that z is a multiple of 2·3 = 6. The smallest magnitude non-zero multiple is z=-6 (since we also require z < -z).

Using z=-6, we have x = -z² = -36; y = -(-6) = 6.

For some positive integer n, ...

... x = -36n², y = 6n, z = -6n.

8 0
3 years ago
7 + 7x; 7(x+1)<br><br> Are these equivalent? <br> TRUE or FALSE?
avanturin [10]

Answer:

I believe it would be true

3 0
3 years ago
What's the answer please I need one<br> 200+ 270-56=
Montano1993 [528]

Answer:

414

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Wall posters are usually sold curled up in cylindrical cardboard tubes. if the length of the tube is 84.5 cm, and the diameter o
LekaFEV [45]
Length of the cylinder = 84.5 cm
Diameter of the cylinder = 2.40 cm

The circumference is
π(2.40 cm) = 2.4π cm.
The area is
A = (2.4π cm)*(84.5 cm) = 637.1 cm²

Answer: a. 637 cm²
8 0
3 years ago
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