All categories

4 years ago

Please help me I will mark you as a best answer

Mathematics

1 answer:

patriot [66]4 years ago

8 0

Answer:

D. $175

Step-by-step explanation:

Nick donated 2/5 of his money to charity, and it says he also spent $70 on charity.

Also, since we don't know the amount of money he has in his bank account, we write it as x. We have the equation:

(2/5)x = 70

The best way to isolate a variable with its coefficient is to multiply both sides with the reciprocal of said coefficient:

(5/2)(2/5)(x) = 70(5/2)

x = 175.

Hope you find this helpful!

You might be interested in

A line passes through the points (7, -5) and (3, 1). Determine the slope of the line.

True [87]

Answer: -6/4 or 3.66666666666667

3 0

3 years ago

How to do proportional relationships on the coordinate plane

Naddika [18.5K]

Answer: A proportional relationship needs to pass through the origin and have a linear (straight) slope. Let me know if you need more specifics.

3 0

4 years ago

Sadie simplified the expression √54a^7b^3, where a>=0, as shown: √54a^7b^3= √3^2•6•a^2•a^5•b^2•b=3ab √6a^5b

Tamiku [17]

Answer:

We are to find the error made by Sadie and then find the correct simplification.

The error Sadie made is that she wrote $a^7$ as $a^2 * a^5$ instead of $a^6 * a$ .

The square root of $a^6$ is $a^3$ and so she could have further simplified.

The correct simplification is shown below:

$\sqrt{54a^7b^3} = \sqrt{2 * 3 * 3 * 3 * a^6 * a * b^2 * b} \\ \\= \sqrt{3^2 * a^6 * b^2 * 6 * a * b} \\\\= 3a^3b\sqrt{6ab}$

4 0

3 years ago

What distribution pattern describes pine trees on a pine tree farm? varied random uniform clumped?

serious [3.7K]

The answer would be uniform

7 0

3 years ago

Read 2 more answers

Use the formula A = h(b1 + b2).<br> What is the area of the trapezoid?<br> square units

deff fn [24]

Only use h=trapezoid's height.

b=base

4 0

3 years ago

Read 2 more answers