2 years ago

Simplify. 8−4÷2+5⋅6 1. 32 2. 36 3. 54 4. 66

Mathematics

1 answer:

Radda [10]2 years ago

7 0

Answer: 36

Step-by-step explanation:

8-2+30

6+30

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attashe74 [19]

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Step-by-step explanation:

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2 years ago

By driving 8 mph faster than Bob, John can make a 230 mile trip in one half hour less. How fast does Bob drive on the trip? Roun

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Answer: The speed of Bob is 56.8 km/hr.

Step-by-step explanation:

Let the speed of Bob be 'x'.

Let the speed of John be 'x-8'.

Distance covered = 230 miles

time = $1\dfrac{1}{2}=\dfrac{3}{2}\ hr$

According to question, we get that

$\dfrac{230}{x}-\dfrac{230}{x+8}=\dfrac{3}{2}\\\\230\dfrac{x+8-x}{x(x+8)}=\dfrac{3}{2}\\\\\dfrac{230\times 8}{x^2+8x}=\dfrac{3}{2}\\\\\dfrac{1840}{x^2+8x}=\dfrac{3}{2}\\\\1840\times 2=3x^2+24x\\\\3680=3x^2+24x\\\\3x^2+24x-3680=0\\\\x\approx 56.8\ km/hr$

Hence, the speed of Bob is 56.8 km/hr.

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2 years ago

What is the slope of the line that passes through (4,1) and (7,-2)?

Alenkinab [10]

Slope formula;
m = y2 - y1/ x2 - x1 point(x, y) = (4, 1), (7, -2)

m = -2 - 1/ 7 - 4
m = -3/3
m = -1

the slope is -1.

hope this helps, God bless!

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2 years ago

What is the answer to 23×-5

Ray Of Light [21]

Answer:

23×-5

= -115

The answer is -115, easy peasy

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3 years ago

Are the following two ratios proportional?

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3 years ago