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2 years ago

Bethany walks 2 1/2 miles each day. How many total miles does she walk in 6 days?

2 answers:

6 0

In decimal form of 2 1/2 would be 2.5.

Next, multiply the number by 6.

2.5 x 6 = 15

Bethany walks 15 miles in 6 days.

Kazeer [188]2 years ago

4 0

Bethany will walk 15 miles in 6 days

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Novay_Z [31]

Answer:

x + 2(2x-4) = 10

Step-by-step explanation:

Here in this question, we want to select which is the correct answer if we substitute for the value of y in the second equation, using the first.

In the first, we have;

y = 2x -4

Now, let’s input this value of y into the second equation.

By direct substitution, what we have is the following;

x + 2y = 10

—-> x + 2(2x -4) = 10

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3 years ago

Given that $x \le -7,$ identify all the correct conclusions. (A) $3x \le -21.$ (B) $3x \ge -21.$ (C) $-3x \le 21.$ (D) $-3x \ge

exis [7]

Answer:

Options A and D are correct choices.

Step-by-step explanation:

We have been given an inequality $x\leq -7$ and we are asked to find the correct options from our given choices.

Let us solve inequalities in our given options one by one to see which of these matches with our given inequality.

(A) $3x\leq -21$

$x\leq \frac{-21}{3}$

$x\leq -7$

We can see that option A gives the same answer as our given inequality, therefore, option A is the correct choice.

(B) $3x\geq -21$

$x\geq \frac{-21}{3}$

$x\geq -7$

This inequality represented in option C gives solution that x should be greater than or equal to -7, which is opposite to our given inequality, therefore, option B is incorrect.

Dividing inequality by a negative number swaps inequality sign.

$x\geq \frac{21}{-3}$

$x\geq -7$

This inequality gives solution that x should be greater than or equal to -7, which is opposite to our given inequality, therefore, option C is incorrect.

(D) $-3x\geq 21$

Dividing inequality by a negative number swaps inequality sign.

$x\leq \frac{21}{-3}$

$x\leq -7$

We can see that option D gives the same answer as our given inequality, therefore, option D is the correct choice.

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3 years ago

Redon is 6ft 2in. tall, and his shadow is 4ft 1in. long . At the same time,a building casts a shadow that is 19ft 10in. long . E

Colt1911 [192]

Can you help on my I am taking a test pls!

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2 years ago

A lake initially contains 3000 fish. Suppose that in the absence of predators or other causes of removal, the fish population in

katrin [286]

Let x = number of months.

Let y = total number of fish in pond.

6% of 3,000 = 180 fish

We can use an equation to help us with this problem.

y = 3,000 + 180x - 400x. Combine like terms.

y = 3,000 - 220x. Plug 9 in for x.

y = 3,000 - 220(9). Solve for y

y = 1,020.

There are 1,020 fish in the pond after 9 months.

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2 years ago

PLEASE HELP! 100 POINTS

larisa [96]

Answer:

(-2, 4.111)

(-1, 4.333...)

(0,5)

(1, 7)

Step-by-step explanation:

So for this, you just substitute x with a cero to obtain the x-axis.

So, (0,5)

Then, you do the same with other numbers (replace x) and get the points to later graph it.

Also, you can use desmos, it really helps

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2 years ago

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