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ki77a [65]
3 years ago
6

20 points! Please answer will mark brainlest.

Mathematics
2 answers:
DanielleElmas [232]3 years ago
7 0

Answer:

30°

Step-by-step explanation:

3x + (90 - 2x) = 180 - 60

x + 90 = 120

x = 120 - 90

x = 30°

malfutka [58]3 years ago
5 0
30 degrees is the answer my love
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How to find 3 1/4 ÷ 5​
bagirrra123 [75]

Answer:

3/20

Step-by-step explanation:

3 x 1/4 x 1/5 = 3/20

6 0
3 years ago
A box contains 10 slips of paper, each with a different number from 1 to 10 written on it. If one slip is removed at random, wha
Art [367]
70%
  7 out of ten slips will be a multiple of 2 or 3<span />
7 0
3 years ago
Read 2 more answers
16+5x=8x-5 What would the variable be?
11111nata11111 [884]
16+5x =8x-5

Reorder the terms
16+5x = -5+8x
Solving for variable for x

Move all terms containing x to the left, all other terms to the right.
Add -8x to each side of the equation.
16+ -3x = -5 + 8x + -8x

Combine like terms: 5x + -8x=-3x
16+-3x = -5 + 8x + -8x

Combine like terms: 8x + -8x = 0
16+-3x = -5 + 0
16+ -3x = -5

Add -16 to each side of the equation
16+-16 + -3x = -5 + 16

Combine like terms: 16+ -16 = 0
0 + -3x =-5 + -16
-3x = -5 + -16

combine like terms: -5 + -16 = -21
-3x = -21
Divide each side by -3
x=7


7 0
3 years ago
Answer please !<br> both questions 7 and 8
Elodia [21]

Answer:

7) p=80

8)z= 19.2

Step-by-step explanation:

7th problem)

0.1p=8

p * 10^{-1}=8

\frac{p}{10}=8

p=80

8th problem)

\frac{z}{2.4}=8

z=8*2.4

z=19.2

3 0
3 years ago
(x-2) is a factor of x^2-3x^2+kx+14. The value of k is?​
BartSMP [9]

Answer:

k = 5

Step-by-step explanation:

I will assume that your polynomial is

x^2 - 3x^2 + kx + 14

If x - a is a factor of this polynomial, then a is a root.

Use synthetic division to divide (x - 2) into x^2 - 3x^2 + kx + 14:

 2      /      1     -3     k     14

                        2     -2    2k - 4

         -------------------------------------

               1        -1    (k - 2)   2k - 10

If 2 is a root (if x - 2 is a factor), then the remainder must be zero.

Setting 2k - 10 = to zero, we get k = 5.

The value of k is 5 and the polynomial is x^2 - 3x^2 + 5x + 14

6 0
3 years ago
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