3 years ago

Best estimate of 48% of 159

Mathematics

1 answer:

olga55 [171]3 years ago

8 0

Answer:

76.32

Step-by-step explanation:

Move the decimal point two times to the left 48. --> .48

Multiply .48 by 159

= 76.32

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Problem Set

insens350 [35]

5 liters (L) of 30% bleach solution contains 0.3×(5 L) = 1.5 L of bleach.

3 L of 50% bleach contains 0.5×(3 L) = 1.5 L of bleach, too.

Combined, you would have 8 L of solution containing 1.5 L + 1.5 L = 3 L of bleach, so the concentration of bleach is

(3 L) / (8 L) = 0.375 = 37.5%

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3 years ago

Renee tossed 12 heads when tossing a coin 18 times.

Nadya [2.5K]

So,

Simply divide 12 by 18.
$\frac{12}{18} --\ \textgreater \ \frac{2}{3}$

The experimental probability of tossing heads was 2 out of 3.

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2 years ago

Jaleh bought 17 bags of chicken feed for her chickens for the week. If Jaleh only 2/7 uses of the

atroni [7]

Answer:

16 5/7

Step-by-step explanation:

this answer is if you mean how much is she NOT using...

6 0

2 years ago

What is the equation of a line that passes through the point (8, 1) and is perpendicular to the line whose equation is y=−2/3x+5

swat32

Let $k:y=m_1x+b_1$ and $l:y=m_2x+b_2$

$l\ \perp\ k\iff m_1m_2=-1\to m_2=-\dfrac{1}{m_1}$

We have $y=-\dfrac{2}{3}x+5\to _1=-\dfrac{2}{3}$

Therefore

$m_2=-\dfrac{1}{-\frac{2}{3}}=\dfrac{3}{2}$

We have the equation of a line: $y=\dfrac{3}{2}x+b$ .

Put the coordinates of the point (8, 1) to the equation of a line:

$1=\dfrac{3}{2}(8)+b$

$1=(3)(4)+b$

$1=12+b$ <em>subtract 11 from both sides</em>

$-11=b\to b=-11$

Answer: $\boxed{y=\dfrac{3}{2}x-11}$

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3 years ago

A line with a negative slope intersects a horizontal line 3 units above the x-axis. Select each point that can not be the inters

Ainat [17]

It can’t not be (-2,3) or (-3,5) or (0,-3)

6 0

3 years ago

Read 2 more answers