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3 years ago

Translate this phrase into an algebraic expression,

Mathematics

1 answer:

BabaBlast [244]3 years ago

5 0

Answer:

17+2n

Step-by-step explanation:

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1) The ratio of the number of boys to the number of girls at a school is 4:5. If there are 120 boys, how many students are there

TiliK225 [7]

Answer:

270 students all together. First you divide 120 by the ratio of boys. That'll get you 30, then multiply 30 by 5 which is the girls ratio and you'll get 150. Finnaly add 150 + 120 then boom your answer

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3 years ago

Which function has a vertex at the origin

Alex787 [66]

$\bf ~~~~~~\textit{parabola vertex form} \\\\ \begin{array}{llll} \stackrel{\textit{we'll use this one}}{y=a(x- h)^2+ k}\\\\ x=a(y- k)^2+ h \end{array} \qquad\qquad vertex~~(\stackrel{}{ h},\stackrel{}{ k}) \\\\[-0.35em] ~\dotfill\\\\ f(x)=-x^2\implies y = -(x-\stackrel{h}{0})^2+\stackrel{k}{0}\qquad \qquad \stackrel{\textit{vertex}}{(0,0)}$

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3 years ago

Which of the following explains how to solve the problem below 1/8 divided 9

Amiraneli [1.4K]

Answer:

Where are the options?

Step-by-step explanation:

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4 years ago

Read 2 more answers

Find the equation of the line using the point-slope formula. Write the final equation using slope-intercept form. (1,2) with a s

Naily [24]

Answer:

$y-2=\displaystyle-\frac{6}{7}(x-1)$

$y=\displaystyle-\frac{6}{7}x+\frac{20}{7}$

Step-by-step explanation:

Hi there!

Point-slope form: $y-y_1=m(x-x_1)$ where <em>m</em> is the slope and $(x_1,y_1)$ is a point that falls on the line

Plug in the slope, -6/7, and the given point, (1,2):

$y-2=\displaystyle-\frac{6}{7}(x-1)$

To write the equation in slope-intercept form, isolate y:

$y-2=\displaystyle-\frac{6}{7}(x-1)\\\\y-2=\displaystyle-\frac{6}{7}x+\frac{6}{7}\\\\y=\displaystyle-\frac{6}{7}x+\frac{6}{7}+2\\\\y=\displaystyle-\frac{6}{7}x+\frac{20}{7}$

I hope this helps!

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3 years ago

1. Billy scored 33 points on a test worth 75 points. What is his percent score?

melamori03 [73]

The first one is 44%

The second one is 25%

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3 years ago