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mylen [45]
4 years ago
6

How do you solve 4/5(k + 10) = -12 without distributing.

Mathematics
2 answers:
-BARSIC- [3]4 years ago
8 0
I'm not sure with this. 4/5 (K+10)=-12 4/5k + 40/5=-12 4/5k+8=-12 4/5k=-8-12 4/5k=-20 4/5k divided by -4/5= -20/-4/5 K=5/5 or 1 is it correct? or 4/5(K+10) = -12 4/5k + 40/5= -12 4/5k= 40/5•-12 4/5k=480/5 K= 24
Naily [24]4 years ago
5 0
Solve for k by simplifying both sides of the equation, then isolating the variable.
k = -25
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Volunteers at an animal shelter are building a rectangular dog run so that one shorter side of the rectangle is formed by the sh
Shkiper50 [21]

Write and solve a compound inequality to model the possible length of the dog run.

The inequality to model the possible length of the dog run is;. 100 ≤ 2.50x ≥ 200

And the possible length of the dog run is 80ft.

Minimum spending = $100

Maximum spending = $200

Cost per square feet = $2.50

let

x = possible number of square feet

The inequality:

100 ≤ 2.50x ≥ 200

This means possible number of square feet constructed is greater than or equal to $100 or less than or equal to $200

solve:

100 ≤ 2.50x ≥ 200

divide the inequality into 2

100 ≤ 2.50x

x ≤ 100/2.5

x ≤ 40

the other part:

2.50x ≥ 200

x ≥ 200/2.50

x ≥ 80

Therefore,

the possible length of the dog run is 80 feet

Read more:

brainly.com/question/9135876

8 0
3 years ago
A. $30 <br> b. $60<br> c. $40<br> d. $50
Olenka [21]

Answer:

it should be $30 so letter a

6 0
3 years ago
The following table represents a linear function. Find the y-intercept. y-intercept​
Katyanochek1 [597]

Answer:

7

Step-by-step explanation:

Hope this helps!

6 0
3 years ago
On Naomi's cell phone plan, the amount she pays each month for international text messages is proportional to the number of inte
Margaret [11]

A) The constant of proportionality in this proportional relationship is k = \frac{y}{x}

B) The equation to represent this proportional relationship is y = 0.2x

<em><u>Solution:</u></em>

Given that,

The amount Naomi pays each month for international text messages is proportional to the number of international texts she sends that month

Therefore,

This is a direct variation proportion

\text{ amount paid each month } \propto \text{ number of international texts sent that month}

Let "y" be the amount that Naomi pays each month

Let "x" be the number of international texts she sends that month

Therefore,

y \propto x

y = kx -------- eqn 1

Where, "k" is the constant of proportionality

Thus the constant of proportionality in this proportional relationship is:

k = \frac{y}{x}

Last month, she paid $3.20 for 16 international texts

Therefore,

y = 3.20

x = 16

Thus from eqn 1,

3.20 = k \times 16\\\\k = \frac{3.20}{16}\\\\k = 0.2

Substitute k = 0.2 in eqn 1

y = 0.2x

The equation would then be y = 0.2x

8 0
4 years ago
H E L P ! !
mihalych1998 [28]

Answer:

10.7cm

Step-by-step explanation:

x^2= 115

x = √115

x = 10.7

5 0
3 years ago
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