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allsm [11]
3 years ago
11

Evaluate 3x + 5 when x = 8

Mathematics
2 answers:
Allushta [10]3 years ago
5 0

Answer:

29

Step-by-step explanation:

3x8 = 24 + 5 is 29

SSSSS [86.1K]3 years ago
5 0
Substitute the value of the variable into the equation and simplify

Answer: 29
You might be interested in
A) 3a + 5 (2a + 6) - 7a
Mrac [35]

Answer:

A) 3a+10a+30-7a

=6a+30

B) 6b-32b+72+3b

=72+23b

3 0
3 years ago
5. Expla in why 4 is or is not a multiplicative inverse mod 10 of 7.
AnnZ [28]

Answer:

  4 is not. (3 is)

Step-by-step explanation:

A number is the multiplicative inverse of 7 (mod 10) if the product mod 10 is 1.

7 × 4 mod 10 = 28 mod 10 = 8 . . . . not 1

5 0
3 years ago
Change 1.77 tones to kilograms
Anastasy [175]

Answer:

1.77 Tones = 1770 Kilograms

Step-by-step explanation:

Multiply the value of the tone by 1000 to get KG

1.77 x 1000 = 1770

6 0
2 years ago
Read 2 more answers
I need to know this asap!
Vinvika [58]

w+2x=16 ⇒ w=16-2x


x+2w=14        x+2(16-2x)=14

                      x+32-4x=14

                     -3x=14-32

                      -3x=-18  /:(-3)

                       x=6


w=16-2x=16-2·6=16-12=4


2y+w=-6 ⇒   2y+4=-6

                   2y=-6-4

                   2y=-10  /:2

                   y=-5

4 0
3 years ago
What is the volume of a cube with side lengths that measure 8 cm?
Nataly_w [17]

Answer: 512 cm³

Explanation: Since the length, width, and height of a cube are all equal,

we can find the volume of a cube by multiplying side × side × side.

So we can find the volume of a cube using the formula v = s³.

In the cube in this problem, we have a side length of 8 cm.

So plugging into the formula, we have (8 cm)³

or (8 cm)(8 cm)(8 cm), which is 512 cm³.

So the volume of the cube is 512 cm³.

7 0
4 years ago
Read 2 more answers
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