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3 years ago

Plz answer :) i need help i will give heart and comment

Mathematics

1 answer:

11111nata11111 [884]3 years ago

6 0

Divide by 3 to get the rate per min

She types 54 words per minute

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PLS HELP ME IM ON TIME4LEARNING

alukav5142 [94]

Answer:

Step-by-step explanation:

12*12=144

5*5=25

$\sqrt{169} = 13$

7 0

2 years ago

Read 2 more answers

the relationship between money earned and hours worked is linear. joe computes the slope between (4, 30) and (12, 90), then comp

julia-pushkina [17]

Slope = rise/run =[y2-y1]/[x2-x1]

1) slope = [90 - 30] / [12 - 4] = 60 / 8 = 15/2

2) slope = [75 - 30] / [10 - 4] = 45 / 6 = 15 / 2

The slopps are equal.

6 0

3 years ago

Read 2 more answers

The sum of the measures of the interior angles of a polygon is 2880°. How many sides does the polygon have?

harina [27]

Let

S------> The sum of the measures of the interior angles of a polygon

n-------> number of sides of a polygon

we know that

The formula to find the sum of the measures of the interior angles of a polygon is equal to

$S=(n-2)*180$ °

in this problem

$S=2880$ °

Solve for n

$S=(n-2)*180\\ \\ n=\frac{S}{180}+2\\ \\ n=\frac{2880}{180}+2\\ \\ n=16+2\\ \\ n=18\ sides$

therefore

the answer is

$18\ sides$

5 0

3 years ago

Read 2 more answers

Of the dogs at the dog show,

Olin [163]

So, let's say that all the dogs had a number of x.

then 1/12 x were the Hound Group dogs.

then, out of the Hound Group,, that is 1/12 x, 3/10 were English Foxhounds.

For this, we need to multiply the fractions:

$\frac{1}{12}x* \frac{3}{10} = \frac{3}{120}x =\frac{1}{40}x$

so of all the dogs at the show, the English Foxhunds were a 1/40 fraction,

5 0

3 years ago

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If 1/a + 1/b =1/c and ab=c,what is the average of a and b?

goblinko [34]

If we solve the left side of the given equation,
1/a + 1/b = 1/c
we get an answer of,
b+a / ab = 1/c
Since ab = c, we can conclude that b + a is 1. The average of these two numbers is equal to there sum divided by 2. The answer is therefore equal to 0.5.

4 0

3 years ago