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Tju [1.3M]
3 years ago
5

Find the value of X and Y for all three questions. Show your work. Will give brainliest!

Mathematics
2 answers:
Reil [10]3 years ago
5 0
X=8 y=11 for the question 13
vodka [1.7K]3 years ago
3 0

Answer:

(13)

<u>x= 8</u>

<u>y=11</u>

(14)

<u>x= 20</u>

<u>y=20.75</u>

(15)

<u>x=9</u>

<u>y=13</u>

Step-by-step explanation:

(13) 8x-1 = 11x -25

24=3x

<u>x= 8</u>

8(8)-1 +15y-48= 180

15y=165

<u>y=11</u>

(14) 7x-44 + 4x + 4= 180

11x= 220

<u>x= 20</u>

4(20)+4+39= 8y-43

123=8y-43

166=8y

<u>y=20.75</u>

(15) 12x+1=15x-26

3x=27

<u>x=9</u>

28+15(9)-26+4y-9=180

4y=52

<u>y=13</u>

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Last year, 31 2 acres of strawberry fields produced approximately 14,700 pounds of strawberries. This year the number of acres p
USPshnik [31]

So in 5 acres of land produces 21,000 pounds of strawberries.

Step-by-step explanation:

Step 1:

Last year, 3\frac{1}{2} acres i.e 3.5 acres produced 14,700 pounds of strawberries. So we need to determine how many strawberries were produced per acre.

To do this we divide the total number of strawberries produced by the number of acres it was produced in.

The number of strawberries produced per acre= \frac{14,700}{3.5} = 4,200 pounds.

Step 2:

To determine the number of strawberries in 5 acres of land, we multiply the number of strawberries per acre by the number of acres.

The number of strawberries produced in 5 acres= 5(4,200) = 21,000 pounds.

So in 5 acres of land produces 21,000 pounds of strawberries.

5 0
3 years ago
What are the solutions to the equation x2 - 8x = 10
mojhsa [17]

Answer:

x = 4 ±√26

Step-by-step explanation:

Please write this as x^2 - 8x = 10, or x^2 - 8x - 10 = 0.  " ^ " indicates exponentiation.

Let's complete the square:

x^2 - 8 x can be rewritten as

x^2 - 8x + 16 - 16, and so

x^2 - 8x = 10 becomes x^2 - 8x + 16 - 16 - 10 = 0, or

                                         (x - 4)^2 = 26

Taking the square root of both sides, we get:

x - 4 = ±√26, or

x = 4 ±√26

5 0
3 years ago
A round silo is 55 feet tall and has a 24 foot radius. How high would a load of 38000 cubic feet of grain fill the silo?
VARVARA [1.3K]

Find the volume of the silo.

The formula is: Volume =  PI x r^2 x h

Replace volume with the volume of grain and solve for h:

38000 = 3.14 x 24^2 x h

38000 = 3.14 x 576 x h

38000 = 1808.64 x h

Divide both sides by 1808.64

h = 38000 / 1808.64

h = 21.01

The grain would be 21.01 feet ( round to 21 feet.)

6 0
3 years ago
Find the function values
babymother [125]

Step-by-step explanation:

f(x)=3x−2  so when the variable x is replace with an actual value ( − 1 ) we get  f(−1)=3(−1)−2

=−3−2

=−5

4 0
2 years ago
Help me I don't know what it is.
kotegsom [21]

Answer:

a is the correct answer

Step-by-step explanation:

-6-(-3)

-6+3

-3

8 0
3 years ago
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