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2 years ago

9

The populations of two towns, town A and town B, are being compared. The population of town A is 4×104 and the population of B i

s 2×105. How many times greater is the population of town B than town A?

1 answer:

Gnoma [55]2 years ago

6 0

Answer:

Town B is 1.98 times greater than town A.

Step-by-step explanation:

A= 4 times 104 = 416

B= 2 times 105 = 210

416 divided by 210 = 1.98

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A store sells almonds for $7 per pound, cashews for $10 per pound, and walnuts for $12 per pound. A customer buys 12 pounds of m

pshichka [43]

The complete question in the attached figure

Let
x------------->  pounds of almonds-------> (<span>$7 per pound)
</span>y------------->  pounds of cashews-------> ($10 per pound)
z------------->  pounds of walnuts-------> ($12 per pound)

we know that
x+y+z=12---------------> equation 1
7x+10y+12z=118---------> equation 2
z=2+y--------------------> equation 3

<span>replacing equation 3 in 1 and 2
</span>x+y+(2+y)=12----------> x+2y=10--------> equation 4
7x+10y+12*(2+y)=118--> 7x+10y+24+12y=118--> 7x+22y=94 --> equation 5

using a graph tool-----> to resolve the system of equations
see the attached figure

the solution is the point (4,3)
x=4
y=3
z=2+y-----> z=2+3-------->z=5

pounds of almonds are 4
pounds of cashews are 3
pounds of walnuts are 5

therefore

the answer is the option
a. The customer buys 1 more pound of walnuts than almonds and 1 more pound of almonds than cashews

7 0

2 years ago

Grace claims that the interquartile range of a data set is never equal to its range. Which type of set can be used to prove or d

ioda

It's either C, or D but I believe it's C.

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2 years ago

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You are given a graph that models a ball being thrown in the air. The vertical axis is the height of the ball from the ground an

aalyn [17]

The graph is going to be all three, because when you throw the ball it goes higher, then constant, then comes back down. It has a maximum point because you can only throw the ball so high up, then it starts to come back down.

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2 years ago

Solve it every process

Naily [24]

g(x) = 2x + 3

f(x) = x^2 + 7

g(f(x)) = 2(x^2 + 7) + 3

g(f(x)) = 2x^2 + 14 + 3

g(f(x)) = 2x^2 + 17

when g(f(x)) = 25 then

2x^2 + 17 = 25

2x^2 - 8 = 0

2(x^2 - 4) = 0

2(x+2)(x-2) = 0

x + 2 = 0; x = -2

x - 2 = 0; x = 2

Answer

x = 2 or - 2

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2 years ago

When solving negative one over five -1/5 (x − 25) = 7, what is the correct sequence of operations

aleksandr82 [10.1K]

The solution would be like this for this specific problem:

$\left( { - 5} \right)
\cdot \left( { - \frac{1}{5}} \right) \cdot \left( {x - 25} \right) = 7 \cdot
\left( { - 5} \right)$

$\left( { - 5} \right)
\cdot \left( { - \frac{1}{5}} \right) = 1$

The correct sequence of operations when solving negative one over five (x − 25) = 7 would be multiply each side by −5, and adding 25 to each side.

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2 years ago