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3 years ago

9

Pls help me with this its the last question

1 answer:

andreev551 [17]3 years ago

3 0

Answer:

10y+5n+3/6 im not too sure but I think its correct

btw envision gives you a try again

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Which unit rate is the lowest price per ounce?

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Answer:

B

Step-by-step explanation:

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3 years ago

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How do you add/subtract radical operations? I know how to simply and stuff, but how do you do things like 4 square root of 2 plu

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U get a calculator and u put 4^2+7^4 n u put it in the calculator but the pic shows what a sqaure root looks like n u see the button with the x2 u can press that for when u put the 4 square root 2 then plus 7 n then u hit the button that has this symbol ^ n hit 4 then equal an itll give u the answer which is 2417.

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3 years ago

The minimum distance between two fence posts is 4 feet. The maximum distance is 10 feet. A. Represent these two distances on a n

dybincka [34]

Answer:

Part A) The number line in the attached figure

Part B) The absolute value equation is $\left|x-7\right|=3$

Step-by-step explanation:

Part A) Represent these two distances on a number line

we know that

The minimum distance between two fence posts is 4 feet, and the maximum distance is 10 feet

Let

x ----> the distance between the two fence post

so

$4\leq x \leq 10$

The interval is -------> [4,10]

using a graphing tool

see the attached figure

In a number line the solution is the shaded area at right of x=4 (close circle) and at the left of x=10 (close circle)

Part B) Write an absolute value equation that represents the minimum and maximum distances

Find the midpoint of the interval [4,10]

$M=(\frac{x1+x2}{2})$

substitute the values

$M=(\frac{4+10}{2})$

$M=(7)$

The distance from the midpoint to the endpoints of the interval is 3 feet

so

The absolute value equation is

$\left|x-7\right|=3$

<em>Verify</em>

<u>Solve the absolute value</u>

case 1) positive value

$+(x-7)=3$

Solve for x

$x=7+3=10\ ft$ ----> maximum distance

case 2) negative value

$-(x-7)=3$

Solve for x

$-x+7=3$

$x=7-3=4\ ft$ ----> minimum distance

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3 years ago

If the sum of Noor's age and Salma's age = 30, 3 years ago Noor's

Flura [38]

Answer:

Noor's age is 12 & Salma's age is 18

Step-by-step explanation:

Noor's age: N

Salma's age: S

$N+S=30$ : given

$N - 3 = \frac{S}{2}$ : given

$N = \frac{S}{2}+3$ : isolate "N"

$\frac{S}{2}+3 + S = 30$ : substitute the value of N for N to find the value of "S"

$\frac{S}{2} + S = 27$ : subtract 3 from both sides

$\frac{S}{2}*2 + S*2 = 27*2$ ≡ $S + 2S = 54$ : multiply both sides by 2

$3S = 54$ : add like values

$\frac{3S}{3} = \frac{54}{3}$ : divide both sides by 3

S = 18

now insert that value into the initial equation:

$N + 18 = 30$

$N = 12$ : subtract 18 from both sides

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3 years ago

Enrollment in French class at a high school is 0.72 of enrollment in Spanish class. What is enrollment in French class compared

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3 years ago