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hodyreva [135]
3 years ago
13

If x represents a given number, the expression "3 less than twice the given number"

Mathematics
1 answer:
Galina-37 [17]3 years ago
4 0

Answer:

2x-3

Step-by-step explanation:

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A farmer ordered 3/4 ton of soil. He wants to divide it evenly into 8 flower beds. How much will he have for each bed?
nasty-shy [4]
We know that
<span>Total soil-------->  3/4 ton 
</span><span>divide it  by 8
(3/4)/8----> 3/(4*8)----> 3/32 ton----> 0.09375 ton----> multiply by 1000---> 93.75 kg

the answer is
</span>93.75 kg f<span>or each bed</span>
7 0
3 years ago
A circular pool with a diameter of 18 ft will have a uniform 4 ft concrete walkway poured around it. If the concrete cost $4.25
zysi [14]

A circular pool with a diameter of 18 ft will have a uniform 4 ft concrete walkway poured around it. If the concrete cost $4.25 a square foot, how much will it cost for the concrete?

This can be solve be solving the area of walkway

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= 276.46 sq ft

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4 0
3 years ago
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Pls helpppppp this is a math emergency!
netineya [11]

Answer:

19.4in

Step-by-step explanation:

1) formula for area of a triangle:

(b*h)/2=a

the area and height are already given so lets substitute them in the formula.

(b*23.8)/2=230.86

1) multiply by 2 on both sides

b*23.8=461.72

divide by 23.8 on both sides

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3 0
3 years ago
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Find the distance between (-1,-2) and (8,9)
Rom4ik [11]

Answer:

\sqrt{202} units or 14.2 units (rounded to the nearest tenth)

Step-by-step explanation:

To find the distance between a pair of two points, use the distance formula  d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}. Substitute the x and y values of (-1,-2) and (8,9) into the formula and simplify:

d = \sqrt{(-1-8)^2+(-2-9)^2} \\d = \sqrt{(-9)^2+(-11)^2} \\d = \sqrt{81+121} \\d= \sqrt{202}  

So, as an exact answer, the distance is \sqrt{202} units.

(To find the decimal approximate of that answer, enter it into a calculator. This would make the decimal approximate 14.2 units, when rounded to the nearest tenth.)  

7 0
3 years ago
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Use the Binomial Theorem to expand each binomial (2x-1)^6
pantera1 [17]
64x^6 - 192x^5 + 240x^4 - 160x^3 + 60x^2 - 12x + 1
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