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3 years ago

An entomologist can model the number of mosquitos in a forest as a function of rainfall.

Mathematics

2 answers:

Alja [10]3 years ago

7 0

Answer: d :)

Step-by-step explanation:

Nesterboy [21]3 years ago

7 0

Answers:

B and D

Step-by-step explanation:

B - This intersects really show us amount of rainfalls (x values) for amount of mosquitoes = 3 millions

D - We can find intersects for this equations if we combine them to one equation

C - We have no intersect of x=3

A - Intersects don't show the same values for x and y

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124 7/8 gallons of water drained from a pool in 25 minutes how much water drained from pool each minute

boyakko [2]

first off, let's convert the mixed fraction to "improper", and then check,

$\bf \stackrel{mixed}{124\frac{7}{8}}\implies \cfrac{124\cdot 8+7}{8}\implies \stackrel{improper}{\cfrac{999}{8}}\\\\ -------------------------------\\\\ \begin{array}{ccll} \stackrel{water}{gallons}&minutes\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ \frac{999}{8}&25\\\\ x&1 \end{array}\implies \cfrac{\quad \frac{999}{8}\quad }{x}=\cfrac{25}{1}\implies \cfrac{\quad \frac{999}{8}\quad }{\frac{x}{1}}=25$

$\bf \cfrac{999}{8}\cdot \cfrac{1}{x}=25\implies \cfrac{999}{8x}=25\implies 999=200x \\\\\\ \cfrac{999}{200}=x\implies \stackrel{gallons}{4\frac{199}{200}}=x$

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3 years ago

The question is up there helpp plz <br>

nignag [31]

Option C is the answer to this question.. that’s 2

4 0

3 years ago

Lin took 75 boxes of carrots and 80 boxes of potatoes to the market. She sold 68 boxes of carrots and 71 boxes of potatoes. How

Vesna [10]

Answer:

There are 16 boxes left in total

Step-by-step explanation:

First we add the amount of boxes at the beginning: 75 + 80 = 155

Then, we add the amount of boxes that were sold: 68 + 71 = 139

Then, we subtract the total amount of boxes sold from the total amount of boxes at the beginning: 155 - 139 = 16

4 0

3 years ago

If a 7% saline solution and a 4% saline solution are mixed to make 500 milliliters of a 5% saline solution, how much of each sol

Bogdan [553]

<span>The answer is 167 milliliters of 7% solution and 333 milliliters of 4% solution x + y = 500 x = 500 - y 0.07x + 0.04y = 25 (substitute 500 - y for x) 0.07(500 - y) + 0.04y = 25 35 - 0.07y + 0.04y = 25 -0.03y + 35 = 25 -0.03y = -10 y = 333.333... y [ = about 333 x = 500 - y = 500 - 333 = 167 hope it helps </span>

3 0

3 years ago

A bag contains 40 cards of five different colors. The probability of selecting each color is listed in the chart.

inna [77]

Answer:

Step-by-step explanation:

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3 years ago