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3 years ago

Plz explain and the fastest person gets a brainliest reward

Mathematics

2 answers:

Naddika [18.5K]3 years ago

3 0

Step-by-step explanation:

x=9 I think because 6+8+8+8

sorry I put Don the wrong number

Andreas93 [3]3 years ago

3 0

Answer:

x = 8

Step-by-step explanation:

Step 1: Set up an equation.

The total amount is 30. We know one value, 6. There are 3 x's. The 3'xs and 6 add up to 30.
In algebraic form, this is 6 + 3x = 30.

Step 2: Solve equation.

(Subtract 6 from both sides) $6 + 3x - 6 = 30 - 6$
$3x = 24$
(Divide both sides by 3) $3x/3 = 24/3$
$x = 8$

Step 3: Check if solution is correct.

$6 + 8 + 8 + 8 = 30$
$14 + 16 = 30$
$30 = 30$

Therefore, x = 8.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

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Find the value of 9y - 7 given that -2y + 1 = 7

krek1111 [17]

Answer:

Brainleist! I need points see below

Step-by-step explanation:

-2y+1=7

-2y = 6

y = -3

now plug in

9 (-3) - 7

-27-7

-34

Need points! Because this useless mod deleted my answers for no reason

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3 years ago

The length of the hypotenuse line segment AC in right triangle ABC is 25 cm. The length of line segment BC is 15 centimeters. Wh

Elden [556K]

From my understanding you ahould use the trig function cos to solve this.
cos(c) = 15/25 or 0.6
if you have this following function on your calculator I suggest using it:

cos ^{ - 1}

by using the function like so:

cos^{ - 1} (0.6

you should get about 53.13° (rounding to the nearest hundredth)
Hope this helped.

8 0

3 years ago

Read 2 more answers

The price of a television is $350. In a sale, its price is reduced by 30%. Calculate the sale price of the television

xz_007 [3.2K]

Answer:

$245

Step-by-step explanation:

0.7 * 350 = 245

4 0

3 years ago

Read 2 more answers

Using the tables above find the mean, median, mode, and range of the prices of Felix's and Tyler's books Felix Price ($) Number

DIA [1.3K]

For Felix's books, Mean = 11.30769... , Median = 9, Mode = none and Range = 26

For Tyler's books, Mean = 56.56521... , Median = 68, Mode = none and Range = 92

Explanation:

Felix Price

3 4 5 6 7 8 9 11 13 15 18 19 29

Mean is just the average of all numbers. As there is total 13 numbers, so for finding the average, we will divide the Sum of all numbers by 13.

So, Mean = $\frac{3+4+5+6+7+8+9+11+13+15+18+19+29}{13} =\frac{147}{13} =11.30769...$

Median is the middle value in the data set. For finding the median, first we need to rearrange the data set in numerical order, but here the data set is already in numerical order. As there is total 13 numbers, so the middle value will be the (13+1)÷2 = 7th number

3 4 5 6 7 8 9 11 13 15 18 19 29

So, the median is 9

The mode is the number that is repeated more often than any other in the data set, but here all the numbers in this set appear only once.

So, there is no mode.

Range is the difference between the largest and smallest values in the set. The largest is 29 and the smallest is 3.

So, the range = 29 - 3 = 26

Tyler Price

7 8 9 13 16 18 32 36 38 64 66 68 69 75 76 78 79 82 86 89 96 97 99

There are total 23 numbers.

So, the Mean = $\\\frac{7+8+9+13+16+18+32+36+38+64+66+68+69+75+76+78+79+82+86+89+96+97+99}{23} \\ \\ =\frac{1301}{23}\\ \\ =56.56521...$