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3 years ago

Krista lives 1/2 mile from school.

Mathematics

2 answers:

vlabodo [156]3 years ago

5 0

Desiree lives closer because there are 880 yards in 1/2 mile

netineya [11]3 years ago

4 0

Well, a mile equals 1760 yards. half of that would be 880 yards. That would mean that Desiree lives eight yards closer to school, which I got by this: 880-872=8

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A new computer loses 1/2 of its value every year. Which graph could represent the relationship between the year and the computer

Igoryamba

<u>Let's first consider:</u><em> the fact that a new computer loses 1/2 of its value</em>

<em> </em> ⇒ <u>third choice</u> and <u>fourth choice</u> are <u>eliminated</u>

⇒ because of the graph project the computer's value as growing over

years

<u>Now let's try to set up an equation</u>:

After 1st year ⇒ Computer's value = $total_.value*\frac{1}{2}$

After 2nd year ⇒ Computer's value = $total_.value*\frac{1}{2}*\frac{1}{2}=total_.value*(\frac{1}{2} )^2$

After 3rd year ⇒ Computer's value = $total_.value*\frac{1}{2}*\frac{1}{2}* \frac{1}{2}=total_.value*(\frac{1}{2})^3$

..... (<em>Hopefully you see a pattern)</em>

<em />

After x year ⇒ Computer's value = $total_.value*(\frac{1}{2})^x$

<u>Therefore, the equation is</u>: $total_.value*(\frac{1}{2})^x$

⇒that means the graph has to <u>exponentially decreasing</u> as it has

an exponent (<em>meaning the function is exponential</em>) and a base less

than 1 (<em>meaning that the function is decreasing)</em>

<u>Answer: Choice (1)</u>

<u></u>

Hope that helps!

5 0

1 year ago

I’m confused on what’s going on here, so if someone could explain it I would be super grateful.

pshichka [43]

<h2>Range of x </h2><h3> $-\frac{1}{5}$ and x>6</h3><h3>Step-by-step explanation:</h3>

Given AB = 4x + 5, BC = 3x - 2 and AC 9x -5

The sum of the length of any two sides of a triangle is greater than the length of third side.

Case I

AB + BC > AC

⇔4x +5 +3x -2 > 9x -5

⇔7x + 3 >9x - 5

⇔ 7x -9x > -5 -3

⇔-2x > -8

⇔x <4

Case II

if AB+AC > BC

4x +5 +9x -5> 3x -2

⇔13x >3x -2

⇔ 13x -3x> -2

⇔10x > -2

⇔x > $-\frac{1}{5}$

Case III

AC+BC > AB

⇔9x - 5 +3x - 2 > 4x +5

⇔6x -7 > 4x +5

⇔6x -4x >5+7

⇔2x > 12

⇔x > 6

8 0

3 years ago

Sound fruit seller earns a $0.40 profit for each Apple that it sells and a $0.40 profit for each bananas at its cells which expr

Nikolay [14]

Answer:

$P= 0.4x+ 0.4y$

Step-by-step explanation:

Given data

Profit from apple= $0.4

Profit from banana= $0.4

Let the number of Apples sold be x, and the number of bananas sold be y

and the total profit be P

Hence the expression for the total profit is given as

$P= 0.4x+ 0.4y$

5 0

3 years ago

A certain medicine is given in an amount proportional to a patient's body weight. Suppose a patient weighing 104 pounds requires

Olegator [25]

104 / 169 = x / 224.25......104 lbs to 169 mg = x lbs to 224.25 mg
cross multiply because this is a proportion
(169)(x) = (104)(224.25)
169x = 23322
x = 23322 / 169
x = 138 lbs <==

8 0

3 years ago

Franklin bought 10.7 pounds of potatoes and 0.74 pounds of carrots. How many pounds of vegetables did he buy in all?

Greeley [361]

Answer:

brainiest give promise

Step-by-step explanation:

27.9 pounds

24.37 + 3.53 = 27.9

7 0

2 years ago