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3 years ago

8

You are trying to save $20 a week to buy a new cd player. during the last 4 weeks youhave saved $35, $15, $10, and $12. how much

do you need to save this week to average $20 for the 5 weeks?
NEED ANSWER BY 3:40 PM

1 answer:

goblinko [34]3 years ago

3 0

You need to save $28.

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Step-by-step explanation:

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Which division expression is equivalent to 4 1/3 ÷ -5/6

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3 years ago

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Solve the system of inequalities to decide if the point (-3,2) is part of the solution; y<=-4x-3, +8y>=7

inna [77]

Answer:

$(x,y) = (-3,2)$ is a solution

Step-by-step explanation:

Given

$y \le -4x + 3$

$x + 8y \ge 7$

Required

Determine if $(x,y) = (-3,2)$ is a solution

$y \le -4x + 3$ becomes

$2 \le -4 * -3 + 3$

$2 \le 15$ --- this is true

$x + 8y \ge 7$

$-3+ 8 * 2 \ge 7$

$13 \ge 7$ --- this is also true

Hence,

$(x,y) = (-3,2)$ is a solution

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3 years ago

A 15-foot ladder is leaning against a house. The bottom of the ladder is 9 feet away from the base of the house. How far up the

vitfil [10]

Answer:

Step-by-step explanation:

The ladder forms a right angle triangle with the building and the ground. The length of the ladder represents the hypotenuse of the right angle triangle. The height, h from the top of the ladder to the base of the house represents the opposite side of the right angle triangle.

The distance from the foot of the ladder to the base of the house represents the adjacent side of the right angle triangle.

To determine the height, h that the ladder reaches, we would apply Pythagoras theorem which is expressed as

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3 years ago

F(x)=3x-7 find the value of c so that f(c) =20 is true

Andreas93 [3]

<u>Answer</u>:

c = 9

<u>Explanation</u>:

given: f(x)=3x-7

<em>if f(c) =20</em>

To solve this replace x with c and then y is 20.

<u>Solve</u>:

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