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Delvig [45]
2 years ago
15

Of the 21 children at a park, 5 of them are playing on the swings. What is the approximate

Mathematics
1 answer:
Bond [772]2 years ago
3 0

The Answer Is B

Use proportions to find x% of the children playing on the swings.

\frac{21}{100}  =  \frac{5}{x\%}

x  = 23.80952380\%

Meaning B is correct.

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Which is the equation in slope-intercept form for the line that passes through (3, 7)
quester [9]

Answer:

y =  -  \frac{5}{3} x + 12

Step-by-step explanation:

First, rewrite the given equation in the form of y=mx+c.

m is the gradient while c is the y-intercept.

3x-5y=8

5y= 3x -8

y =  \frac{3}{5} x -  \frac{8}{5}

Thus, the gradient of the given equation is ⅗.

The product of the gradients of perpendicular lines is -1.

(gradient of line)(⅗) = -1

gradient of line= -1 ÷⅗

gradient of line= -  \frac{5}{3}

y =  -  \frac{5}{3} x + c

To find the value of c, substitute a coordinate.

When x=3, y=7,

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7= -5 +c

c= 7+5

c= 12

Hence, the equation of the line is y =  -  \frac{5}{3} x + 12.

6 0
3 years ago
3. In a circular park with a radius of 250 m there are 7 lamps whose bases are circles with
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6 0
3 years ago
What is 80.68 +79.56 equal
Sunny_sXe [5.5K]
<span>What is 80.68 +79.56 equal?
</span>80.68+79.56 =160.24
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A local hamburger shop sold a combined total of 712 hamburgers and cheeseburgers on Tuesday. There were 62 more cheeseburgers so
hammer [34]
A local hamburger shop sold a total of 712 burgers on Tuesday

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let cheeseburers = c
let hamburgers = h

h + 62 = c
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Plug in h + 62 for c

(h + 62) + h = 712
2h + 62 = 712
2h + 62 (-62) = 712 (-62)
2h = 650
2h/2 = 650/2
h = 325

There are 325 hamburgers sold on Tuesday

c = 325 + 62
c = 387

<em>There are 387 chesseburgers sold on tuesday </em>(in case you were wondering)


hope this helps
4 0
3 years ago
The formula for the surface area of a cylinder is 277(r + h) where r is the radius of the cylinder's base and h is its height. A
Andrew [12]

Answer:

277(10+2)=277(12)=277x12=3324

8 0
3 years ago
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