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3 years ago

Solve. And Explain. r/9 = -4

Mathematics

2 answers:

Bezzdna [24]3 years ago

4 0

Answer:

Step-by-step explanation:

r/9 = -4

then multiply 9 to -4 which equals -36

at last, r is equal to -36

rodikova [14]3 years ago

3 0

So you need to have the variables on one side and the constants on another.

Since r is divided by 9 on the left side, you have to get rid of the 9 by multiplying. r/9 times 9 equals r, and -4 times 9 equals -36.

So r = -36

Hope this helped!

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At the time that a 55 foot tall tree casts a shadow that is 32 feet long, a nearby woman is 5.5 feet tall. Which measure is the

Tasya [4]

Answer:

3.2ft long shadow

Step-by-step explanation:

In this problem we are given a ratio between the tree/shadow and woman/shadow therefore we are given 3 values and 1 unknown then we can use the Rule of Three to calculate the length of the shadow which we will refer to as x. The Rule of Three simply multiplies the diagonal values and divides by the third value in order to get the missing unknown like so...

55ft tall <======> 32ft long shadow

5.5ft tall <======> x ft long shadow

(5.5 * 32) / 55 = 3.2ft long shadow

Finally, we can see that the woman's shadow would be a 3.2ft long shadow

8 0

3 years ago

Which of the following best describes the solution to the equation below?<br><br> 14x + 9 = 7x + 46

sasho [114]

The solution is x=5. I hope I helped! Have a good day :)

4 0

4 years ago

Read 2 more answers

Can someone help me?

Papessa [141]

Answer:

$2x - 2y = 24 \\ 2(x - y) = 24 \\ x = 12 + y......eq(1) \\ 4x + 7y = - 40......eq(2) \\ substituting \: the \: value \: of \: x \: in \: eq(2) \\ 4(12 + y) + 7y = - 40 \\ 48 + 4y + 7y = - 40 \\ 11y = - 40 - 48 \\ y = \frac{ - 88}{11} \\ y = - 8 \\ putting \: the \: value \: of \: y \: im \: eq(1) \\ x = 12 - 8 \\ = 4$

Step-by-step explanation:

3x-2y=24......eqi

x+2y=48........eqii

now solving eq i&ii

4x=72

x=72/4

x=18

now putting the value of x in eqii

18+2y=48

2y=48-18

y=30/2

y=15

7 0

3 years ago

Emilio's Bakery recently spent a total of $50 on new equipment, and their average hourly operating costs are $14. Their average

swat32

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3 years ago

A raised garden is a rectangular prism with a width of 60 in. And a length that is three times the height "h". The volume of the

kati45 [8]

Answer:

24 in

Step-by-step explanation:

From the question,

The formula for finding the volume of a rectangular prism is

V = l×w×h...................... Equation 1

Where l = length, w = width, h = height.

From the question, we were told that the length of the prism is three times the height.

i.e,

l = 3h....................... Equation 2

Substitute equation 2 into equation 1

V = 3h×w×h

V = 3h²w............... Equation 3

Given: V = 103680 in³, w = 60 in

Substitute these values into equation 3 and solve for h

103680 = 3(h²)(60)

103680 = 180h²

h² = 103680/180

h² = 576

h = $\sqrt{576}$

h = 24 in.

Hence the height of the raised garden is 24 in

6 0

3 years ago