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hram777 [196]
3 years ago
15

Work out the highest common factor (HCF) of 18 and 30

Mathematics
1 answer:
Paraphin [41]3 years ago
3 0

18 = 2\times 3 \times 3\\\\30 = 2 \times 3 \times 5\\\\\text{HCF}~ = 2\times 3 = 6

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Beach Travel rents dune buggies for $50 for 4 hours or $75 for 6 hours. What is the hourly rate?
Mars2501 [29]

Answer: $ 12.5

Step-by-step explanation:

To find the hourly rate, divide the total cost by the total hours, that is

$50 / 4 = $12.5

$75/6 = $12.5

7 0
3 years ago
Read 2 more answers
BRAINLIEST TO FIRST RIGHT ANSWER The coefficients of the first three terms in the expansion of (x – y) 4 are a) 1, –4, –6 b) 1,
Zigmanuir [339]

Answer:

b) 1, -4, 6

Step-by-step explanation:

(x-y)^4=

(x-y)(x-y)(x-y)(x-y)=

(x^2-xy-xy-y^2)(x^2-xy-xy-y^2)=

(x^2-2xy-y^2)(x^2-2xy-y^2)=

x^4-4x^3y+6x^2y^2-4xy^3+y^4

7 0
3 years ago
(b) What portion of the official U.S. poverty threshold (roughly $29,000 for a family of four) is met by the World Bank’s measur
otez555 [7]
World Bank's threshold for poverty is $1.25 per person per day. 
For a family of four this gives:
Daily income = (number of people) * threshold
Daily income = 4 * $1.25
Daily income = $5
For a year this is:
Yearly income = (daily income) *365
Yearly income = $5 *365
Yearly income = $1825

U.S. poverty threshold is set at $29000. Portion of threshold can be calculated as:
Portion\text{ }of\text{ }threshold= \frac{Poverty\text{ }threshold\text{ }(World\text{ }Bank)}{Poverty\text{ }threshold\text{ }(U.S.)} *100\% \\  \\ Portion\text{ }of\text{ }threshold= \frac{1825}{29000} *100\% \\  \\ Portion\text{ }of\text{ }threshold=6.29\%

The poverty threshold measured by World Bank is 6.29% of the U.S. poverty threshold.
5 0
3 years ago
Marta is solving the equation s=2πrh+2πr^2 for h. which should be the result?
Marta_Voda [28]

Answer: First option.

Step-by-step explanation:

Marta needs to subtract 2\pi r^2 from  both sides of the equation:

s=2\pi rh+2\pi r^2

s- 2\pi r^2=2\pi rh+2\pi r^2- 2\pi r^2

s- 2\pi r^2=2\pi rh

Now she needs to divide both sides of the equation by 2\pi r, then:

h=\frac{s- 2\pi r^2}{2\pi r}

Rewriting:

h=\frac{s}{2\pi r}-\frac{2\pi r^2}{2\pi r}

Simplifying, she should get:

h=\frac{s}{2\pi r}-r

This matches with the first option.

6 0
4 years ago
Read 2 more answers
Can anyone help please?
eduard

Answer:

2x+y=5.

Step-by-step explanation:

slope(m)=-2

passed through point (0,5)=(x1,y1)

then

the equation is

(y-y1)=m(x-x1)

or (y-5)=-2(x-0)

or (y-5)=-2x

or 2x+y=5 is the equation.

4 0
3 years ago
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