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3 years ago

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Which multiplication and addition problem can help you check your work for 5 ÷ 4 * 1 point 2 x 1 = 2, 2 + 3 = 5 4 x 1 = 4, 4 + 1

= 5 4 x 1 = 4, 4 + 5 = 9 3 x 1 = 3, 3 + 2 = 5

1 answer:

denpristay [2]3 years ago

4 0

Answer:don't know

Step-by-step explanation:

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Find two positive numbers if their ratio is 8:5 and the difference is 150.

natima [27]

Let's call the two numbers x and y. We can write a system of equations to describe the situation:

5x = 8y

x - y = 150

Let's solve the first equation for x:

x = 8y/5

Now we can use substitution to solve the system by plugging 8y/5 in for x in the second equation:

(8y/5) - y = 150

Simplify:

3y/5 = 150

3y = 750

y = 250

If y = 250, then x is:

x = 8(250)/5 = 400

The answer is 250 and 400.

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3 years ago

Create a word problem using 30+2d as the answer

Tanzania [10]

Answer:

Sonya pays a flat fee of $30 for her phone bill and pays $2 per gigabyte she uses per month. Put Sonya's bill as an equation with <em>d</em> being how many gigabytes she uses per month.

Step-by-step explanation:

We get the flat fee of $30 from "30 + 2d" and the $2 per gigabyte from "30 + 2d" and since we want to find out Sonya's total bill, that's where the + in "30 + 2d" comes from. We want the variable to be <em>d</em> therefore <em>d</em> is how many gigabytes she uses per month.

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2 years ago

HELP ME PLSSS IM STUCK

Naddika [18.5K]

Answer:

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Step-by-step explanation:

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3 years ago

A linear function is graphed below.

Evgen [1.6K]

Answer:

$-1\frac{1}{2}$

Step-by-step explanation:

We have two coordinate points and are asked to find a slope.

When finding slope, we can use the formula listed :

$\frac{y^2-y^1}{x^2-x^1}}$

To understand what the variables are, you can take this :

$(x^1,y^1)$

$(x^2,y^2)$

Substitute the points :

$(-1,4)$

$(5,-5)$

Now substitute it into the formula :

$\frac{-5-4}{5-(-1)}$

$\frac{-3}{2}$

$-1\frac{1}{2}$

4 0

3 years ago

Read 2 more answers

Use the Associative Property of Addition to write an expression equivalent to (n + 2) + 7. Which expression is equivalent to (n

insens350 [35]

Answer:

The correct answer is OB.

Step-by-step explanation:

Let us recall the Associative Property of Addition: given three real numbers $a$ , $b$ and $c$ the following equality holds:

$(a+b) + c = a+(b+c)$ .

Let us remark that the Associative Property of Addition tells us that we can perform the sums in any order. So,

$(n+2)+7 = n+(2+7)$ .

In the other options there was used the Commutative Property of Addition.

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3 years ago