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2 years ago

What is the greatest common factor for 25 and 77?

Mathematics

2 answers:

worty [1.4K]2 years ago

5 0

25, 5, 1 for 25

77, 11, 7, 1 for 77

Sorry it took to long my computer kind of froze Hope this helps

klemol [59]2 years ago

3 0

The answer is 1
factors of 25 are 25, 5, 1
factors for 77 are 77, 11, 7, 1

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6. Andy walked around the perimeter of the park four times. The park is 500 feet by 750 feet. What is the total distance he walk

Tom [10]

I got 2.000 +3.000 it B

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2 years ago

A manufacturer wants to construct a box whose base length is 4 times the base width. The material to build the top and bottom co

Nitella [24]

Answer:

width = 1.77845 ft

length = 7.1138 ft

height = 5.691 ft

total cost = $759.09

Step-by-step explanation:

volume = length x width x height

length = 4 width

base of the rectangle = 4 x 1 w = 4w²

72 (volume) = 4w²h

18 = w²h

f(c) = (2 x 4w² x $10) + (2 x wh x $5) + (2 x 4wh x $5)

f(c) = 80w² + 10wh + 40wh

f(c) = 80w² + 50wh

since we need only 1 variable (width), we have to substitute h:

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f(c) = 80w² + 50w(18/w²) = 80w² + 900/w

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6 0

2 years ago

4. Simplify the expression 9c + 6 -4c -3 A.13c + 9 B. 13c+ -3 C.5c + 9 D. 5c + 3

Bingel [31]

Answer:

i think it d

Step-by-step explanation:

7 0

3 years ago

A countrys population in 1990 was 145 million. In 1998 it was 151 million. Estimate the population in 2015 using the exponential

alexandr402 [8]

Answer:

The population in 2015 will be 165 million.

Step-by-step explanation:

The exponential growth formula is given by:

$f(t) = a(1 + r)^{\Delta t}$

Where:

a: is the initial population

r: is the rate of increase

Δt: is the time

With the initial information we can find the rate:

$151 = 145(1 + r)^{1998-1990}$

Using logarithm:

$ln(151) = ln(145) + 8[ln(1 + r)]$

$ln(1 + r) = \frac{ln(151) - ln(145)}{8}$

$ln(1 + r) = 5.0683 \cdot 10^{-3}$

Using exponential:

$e^{ln(1 + r)} = e^{5.0683 \cdot 10^{-3}}$

$r = 5.081 \cdot 10^{-3}$

Now, we can find the estimated population in 2015:

$f(t) = 151(1 + 5.081 \cdot 10^{-3})^{2015-1998}$

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Therefore, the population in 2015 will be 165 million.

I hope it helps you!

5 0

3 years ago

Rearrange the formula to make x the subject : 5( a - 2x) = 9(x + 1)

katovenus [111]

Answer:

x = $\frac{5a-9}{19}$

Step-by-step explanation:

Given

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5a = 19x + 9 ( subtract 9 from both sides )

5a - 9 = 19x ( divide both sides by 19 )

$\frac{5a-9}{19}$ = x

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2 years ago