3 years ago

Solve the following system of linear equations {2x-7y=10 {5x -6y=2

Mathematics

1 answer:

Sliva [168]3 years ago

5 0

2x-7y=10 = $\frac{2}{7}$

5x -6y=2 = $\frac{5}{6}$

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Haley bought 1.6 pounds of almonds for $13.20. How much did she pay per pound for the almonds? Record your answer and fill in th

sergejj [24]

Answer:

She paid $8,25 per pound

Step-by-step explanation:

Given

$Weight = 1.6\ lb$

$Total= \$13.20$

Required

Determine the amount paid per pound

To do this, we simply divide the amount by the weight of Almonds.

$Amount = \frac{Total}{Weight}$

$Amount = \frac{\$13.20}{1.6\ lb}$

$Amount = {\$8.25/\ lb$

<em>Hence, she paid $8,25 per pound</em>

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3 years ago

In order to prove a conjecture is always true, you must show?

vodomira [7]

I believe its A, if you’re unsure just google how to prove a conjecture to be true

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3 years ago

525.4 is 74% of what number

densk [106]

Let, that number = x
It would be: x * 0.74 = 525.4
x = 525.4 / 0.74
x = 710

So, the number would be 710

Hope this helps!

5 0

4 years ago

(-3 + 8i) – (-4 - 6i)

Dafna1 [17]

Answer:

1+14i

Step-by-step explanation:

- remove unnecessary parentheses (-3 + 8i) -(-4 - 6i) = -3+8i - (-4-6i)

- when there is a - in front of an expression in parentheses, change the sign of each term in the expression -3+8i+4+6i

- calculate the sum

(-3+4=1) = 1+8i+6i

- collect like terms

(8i+6i=14i) = 1+14i

SOLUTION: 1+14i

3 0

3 years ago

What is the following product? Square root 12 times sqrt 18

stepan [7]

This is the same as $\sqrt{12*18} = \sqrt{216}$
$\sqrt{9*24} = \sqrt{9*4*6}$
9 and 4 are squares so take them out
$3*2* \sqrt{6}$
$6 \sqrt{6}$

7 0

4 years ago

Read 2 more answers