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Mathematics

2 answers:

Allushta [10]3 years ago

5 0

I think it is 80 yd.

trasher [3.6K]3 years ago

5 0

Answer: 96

Step-by-step explanation:

SA= 6s squared

6*4 squared = 96

4*4= 16

16*6=96

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Solve 2x + 5y = −13 3x − 4y = −8

zlopas [31]

If you would like to solve 2x + 5y = -13 and 3x - 4y = -8, you can do this using the following steps:

2x + 5y = -13 /*4
3x - 4y = -8 /*5
_______________
8x + 20y = -52
15x - 20y = -40
_______________
8x + 15x + 20y - 20y = -52 - 40
23x = -92
x = -92 / 23
x = -4

<span>3x - 4y = -8
</span>3 * (-4) - 4y = -8
-12 - 4y = -8
12 + 4y = 8
4y = 8 -12
4y = -4
y = -1

The correct result would be x = -4 and y = -1.

6 0

3 years ago

5x+y=-10 4x-7y=-8 Substition Method (Show it step by step please!)

Fynjy0 [20]

$\left\{\begin{array}{ccc}5x+y=-10&|\text{subtract 5x from both sides}\\4x-7y=-8\end{array}\right\\\left\{\begin{array}{ccc}y=-5x-10&|\text{substitute to the second equation}\\4x-7y=-8\end{array}\right\\\\4x-7(-5x-10)=-8\qquad\text{use distributive property}\\\\4x+(-7)(-5x)+(-7)(-10)=-8\\\\4x+35x+70=-8\qquad\text{subtract 70 from both sides}\\\\39x=-78\qquad\text{divide both sides by 39}\\\\\boxed{x=-2}\\\\\text{Put the value of x to the first equation}\\\\y=-5(-2)-10\\\\y=10-10\\\\\boxed{y=0}$

$Answer:\ \boxed{x=-2\ and\ y=0}$

3 0

3 years ago

Read 2 more answers

Four less than twice the square of x is 124. Which equation can be used to find the value of x?

tester [92]

2x^2-4=124 is the correct answer.

5 0

3 years ago

There are 6 roses, 8 carnations, and 12 tulips. Write the ratio of carnations to all flowers in all three forms (simplify first,

Norma-Jean [14]

Your answer is 8 to 26

the number of carnations is 8 and the total number of flowers is 26. since you said carnations to flowers it is 8 to 26.

here are the 3 ways to write the ratio:

8 to 26 8:26 8/26

3 0

4 years ago

A farmer wants to plant an apple orchard. His design consists of 10 rows of trees, where each row is 29.79 feet long. When he ge

Elis [28]

First divide 29.79 feet by 6
$\frac{29.79}{6} = 4.97$
But since you can't plant only a fraction of a tree, you can plant a maximum of 4 trees per row.
Now there are ten rows so...
10×4 = 40
You can plant 40 trees at the maximum.

7 0

4 years ago