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3 years ago

8

A beetle was running along a number line, Then the bug ran from 24 to 78. What distance did it cover? If this run took the bug 9

seconds, What was its average speed?

1 answer:

Margaret [11]3 years ago

3 0

Answer:

it covered 54 and ran 6 per 9 second

Step-by-step explanation:

step 1. 78-24 = 54

step 2. 54/9 = 6

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Timmy and Sarah head out to dinner and Garfinkels in Vaile. Timmy brings $40 with him. If buy two French Dips costing $10.95 a p

vlabodo [156]

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$3.80

Step-by-step explanation: :)

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3 years ago

1. The sum of two numbers is 64. One of the numbers is 16 more than 3 times the other. Find the

Mamont248 [21]

Answer:

The two numbers are 52 and 12.

Step-by-step explanation:

x+y=64

x=16+3y

Now, substitute the second equation into the first one.

16+3y+y=64

16+4y=64

4y=48

y=12

Substitute 12 into one of the equations in order to find x.

x=16+3(12)

x=16+36

x=52

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3 years ago

Tyler does squats and pushups. He wants to increase the number of each type of exercise by 20% by the end of the month. He curre

Semenov [28]

Answer:

Tyler currently does 40 squats

Step-by-step explanation:

Tyler does squats and pushups.

<u>Currently:</u>

Number of pushups = 25

Number of squats = x

Total number = 25 + x

<u>After increase:</u>

Number of pishups $=25\cdot (1+0.2)=1.2\cdot 25=30$

Number of squats $=x\cdot (1+0.2)=1.2x$

Total number $=30+1.2x$

If Tyler meets his goal, he will do a total of 13 more squats and pushups than he does now, thus

$(30+1.2x)-(25+x)=13\\ \\30+1.2x-25-x=13\\ \\1.2x-x=13-30+25\\ \\0.2x=8\\ \\2x=80\\ \\x=40$

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3 years ago

Find the equation in standard form , of the line passing through points (2,-3) and (4,2)

Fudgin [204]

The form of linear equation that describes line is:

$y=sx+n$

First we must calculate the slope.

$s=\dfrac{\Delta{y}}{\Delta{x}}=\dfrac{2-(-3)}{4-2}=\dfrac{5}{2}$

Now it looks a bit more like this:

$y=\dfrac{5}{2}x+n$

All we need now is to put in y and x from one point doesn't matter which. I'll pick A.

The equation now looks like this:

$-3=\dfrac{5}{2}\cdot2+n$

Solve for n.

$-3=5+n \\n=-8$

And finally write the equation.

$f(x)=\dfrac{5}{2}x-8$

Hope this helps.

r3t40

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3 years ago

Justify why a/b x b/c x c/d x d/ e is equal to a/e when b,c,d, and e are not zero?

san4es73 [151]

$\frac { a }{ b } \times \frac { b }{ c } \times \frac { c }{ d } \times \frac { d }{ e } \\ \\ =\frac { a\cdot b\cdot c\cdot d }{ b\cdot c\cdot d\cdot e } \\ \\ =\frac { a }{ e } \cdot \frac { b\cdot c\cdot d }{ b\cdot c\cdot d } \\ \\ =\frac { a }{ e } \cdot 1\\ \\ =\frac { a }{ e }$

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4 years ago