Please help me I will mark brain-list

Mathematics

2 answers:

kozerog [31]3 years ago

6 0

Answer:

q12 is 8

q13 is 81

Step-by-step explanation:

100*6 =600 / 75 = 8

90*72 = 6480 / 80 = 81

Svetach [21]3 years ago

3 0

Answer:

$x=8 , w=106.$

Step-by-step explanation:

To find this answer, it is quite simple. This is because you use to cross multiply rule in order to solve the problem so you multiply

$100*6, 75*x$ and you get 600=75x. Then you solve the equation like normal. Same thing for the second equation 90*72 and 80*w you will get 6480=80w. And then solve the equation from there. I hope this helps :)))

Pls mark brainliest

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Please help me it's in like 10 minutes..................

FrozenT [24]

Answer:

The annual interest rate is 12.05%

Step-by-step explanation:

4 0

3 years ago

A set of data following a normal distribution has a mean of 192.3 and a standard deviation of 11.8. Find the probability that a

stiks02 [169]

Answer: 95.64% of the values will be below 212.5 in our set of data.

First, determine the z-score for the expected value of 212.5. The z-score is the number of standard deviations that it is above or below the mean.

(212.5 - 192.3) / 11.8 = 1.71

A score of 212.5 is 1.71 standard deviations above the mean. Now, use a table to find the probability for a z-score of 1.71. The percent is 95.64%.

7 0

3 years ago

Read 2 more answers

Determine the x-intercept and the y-intercept for the graph of this equation:<br> 2x - 3y + 36 = 0

natali 33 [55]

QUESTION:- DETERMINE THE X-INTERCEPT AND THE Y-INTERCEPT FOR THE GRAPH OF THE EQUATION.

EQUATION:- 2x - 3y + 36 = 0

STANDARD EQUATION:- y=mx+c

where

m-> slope.
c-> Y-INTERCEPT
x&y are the coordinates.

SO GIVEN EQUATION:- 2x - 3y + 36 = 0

WE CAN SOLVE THIS TO CHANGE IN FORMAT OF STANDARD EQUATION

$2x - 3y + 36 = 0 \\ 2x + 36 =3y \\ y = \frac{2}{3} x + \frac{36}{3} \\ y = \frac{2}{3} x + \frac{ \cancel{36}^{ \: \: 12} }{ \cancel3} \\ y = \frac{2}{3} x + 12 \\$

SO :-

$m = \frac{2}{3} \\ y - intercept = 12 \: ans$

$slope = \frac{y2 - y1}{x2 - x1} \\ \frac{2}{3} = \frac{0 - 12}{x - 0} \\ 2x = ( - 12) \times 3 \\ x = \frac{ - \cancel{12}^{ \: \: 6} \times 3 }{ \cancel{2}} \\ x = - 18 \: \: ans$