3 years ago

Weighted average worksheet

Mathematics

1 answer:

frozen [14]3 years ago

6 0

Paper is usually I'd say 1 kg plz brainliest

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Robin can mow a lawn in 3 hours, while Brady can mow the same lawn in 4 hours. How many hours would it take for them to mow the

Sauron [17]

The answer to your question is B.
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3 years ago

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14x^2-8x+3 + -6x^2+7x-11

Bingel [31]

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4 years ago

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2(5m-8)+3(m+2)=12+4(2m-1)

FrozenT [24]

Answer:

3.6

Step-by-step explanation:

2(5m-8)+3(m+2)=12+4(2m-1)

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3 years ago

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Is the equation parallel perpendicular or neither ?<br><br> y = 5/4 x+1 and y = 5/4 x-7

weeeeeb [17]

Answer:

Parallel

Step-by-step explanation:

The equation of a line in slope - intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Both given equations are in this form, that is

y = $\frac{5}{4}$ x + 1 → m = $\frac{5}{4}$

y = $\frac{5}{4}$ x - 7 → m = $\frac{5}{4}$

Parallel lines have equal slopes thus the lines are parallel

4 0

3 years ago

A gift shop sells 140 wind chimes per month at $90 each. The owners estimate that for each $5 increase in price, they will sell

guapka [62]

Answer: $95

Step-by-step explanation:

Te new price will be 90 + 5x, if the price increases "x" times

The number of wind chimes sold per month will become 140 - 7x

$\begin{aligned}&\text {Revenue, } \mathrm{R}(\mathrm{x})=(90+5 \mathrm{x})(140-7 \mathrm{x}) \\&R^{\prime}(x)=5(140-7 x)-7(90+5 x) \\&R^{\prime}(x)=700-35 x-630-35 x \\&R^{\prime}(x)=70-70 x=0 \\&70 x=70 \\&x=1\end{aligned}$

Therefore, if the price becomes (90 + 5(1)) = $95 per wind chime, then the revenue will be maximum

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3 years ago