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Anestetic [448]

3 years ago

7

Help me.... need help

1 answer:

Natasha_Volkova [10]3 years ago

7 0

Answer:what grade u in

Step-by-step explanation:

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What does common factors mean?

bearhunter [10]

Factors are the numbers you multiply together to get another number. when you find the factors of two or more numbers, and then find some of the numbers (factors) are the same (common) you have common factors.

example: 12 and 36

12: 1x12, 2x6, 3x4
36: 1x36, 2x18, 3x12, 4x9, 6x6

the common factors in these numbers are 1, 2, 3, 4, 6 and 12

hope this helped you out!

6 0

3 years ago

A student has a 2% salt water solution and a 7% salt water solution. To best imitate salt water at a local beach, he needs 1 lit

FromTheMoon [43]

Let

x-------> the amount of $2\%$ solution

y--------> the amount of $7\%$ solution

we know that

$2\%=0.02\\7\%=0.07\\3.5\%=0.035$

so

$x+y=1$

$y=1-x$ -------> equation A

$0.02x+0.07y=0.035$ -------> equation B

substitute equation A in equation B

$0.02x+0.07(1-x)=0.035$

$0.02x+0.07-0.07x=0.035$

$0.05x=0.035$

$x=0.7\ liters$

find the value of y

$y=1-x$

$y=1-0.7=0.3\ liters$

therefore

The student need $0.7\ liters$ of $2\%$ solution and $0.3\ liters$ of $7\%$ solution

<u>the answer is</u>

A) The percent values were written incorrectly in the equation

B) The amount of 7% solution should be written as 1 – x, not x – 1.

8 0

3 years ago

Read 2 more answers

Need help! will award brainiest

coldgirl [10]

Answer:

$\sf slope: \boxed{\bf \frac{1}{3} }$

Explanation:

$\sf slope :\dfrac{y_2-y_1}{x_2-x_1} =\dfrac{rise}{run} \ \ \ \ where \ (x_1, \ y_1) ,(x_2, \ y_2) \ are \ points$

Find slope:

$\rightarrow \sf \dfrac{x_2-x_1}{y_2-y_1}$

<em>insert values</em>

$\rightarrow \sf \dfrac{3-5}{-4-2}$

<em>simplify</em>

$\rightarrow \sf \dfrac{1}{3}$

4 0

2 years ago

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A concrete pillar has the shape of a cylinder. It has a radius of 6 meters and a height of 4 meters. If concrete costs $82 per c

Gnesinka [82]

82

Step-by-step explanation:

6 0

3 years ago

What does 150 / (-2) equal?

Nookie1986 [14]

Answer:

-75

Step-by-step explanation:

I just checked on a calculator

6 0

3 years ago

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