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3 years ago

Fill in the blank to make the ratios equivalent. 20: 160 1:

Mathematics

2 answers:

Korolek [52]3 years ago

7 0

Answer:

Step-by-step explanation:

Julli [10]3 years ago

3 0

Answer:

Step-by-step explanation:

1/x=20/160

20x=160

x=8

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In a certain state, each automobile license plate number consists of two letters followed by a four-digit number. to avoid confu

777dan777 [17]

24×24×10×10×10×10=5 760 000

3 0

4 years ago

The cost of a car rental is $30 per day plus per mile. You are on a daily budget of $75. Write and solve an inequality to find

lora16 [44]

Answer:

2. 5 miles

Step-by-step explanation:

Given that:

Rental cost = $30

Cost per mile driven = 18 cent

Daily budget = $75

Greatest distance you can drive each day while staying within budget :

Rental cost + (cost per mile driven * distance) ≤ daily budget

$30 + 18d ≤ $75

18d ≤ 75 - 30

18d ≤ 45

d ≤ 45 / 18

d ≤ 2.5

Greatest distance you can drive each day while staying within budget is 2.5 miles.

Step-by-step explanation:

8 0

3 years ago

In a lab experiment, 610 bacteria are placed in a petri dish. The conditions are such that the number of bacteria is able to dou

Alex777 [14]

Answer:

It would take 19 hours and 36 minutes until there are 1040 bacteria present.

Step-by-step explanation:

Given that in a lab experiment, 610 bacteria are placed in a petri dish, and the conditions are such that the number of bacteria is able to double every 23 hours, to determine how long would it be, to the nearest tenth of an hour, until there are 1040 bacteria present, the following calculation must be performed:

610X = 1040

X = 1040/610

X = 1.7049

2 = 23

1.7049 = X

1.7049 x 23/2 = X

39.2131 / 2 = X

19.6 = X

100 = 60

60 = X

60 x 60/100 = X

36 = X

Therefore, it would take 19 hours and 36 minutes until there are 1040 bacteria present.

5 0

3 years ago

Can someone explain?

makkiz [27]

The correct statement regarding the quadratic function is:

K. I, II and III.

<h3>What is a quadratic function?</h3>

A quadratic function is given according to the following rule:

$y = ax^2 + bx + c$

If a > 0, it has a maximum value, and if a < 0, it has a minimum value.

The extreme value is $(x_v,y_v)$ , in which:

$x_v = -\frac{b}{2a}$

$y_v = -\frac{\Delta}{4a}$

$\Delta = b^2 - 4ac$

The solutions are:

$x_1 = \frac{-b + \sqrt{\Delta}}{2a}$

$x_2 = \frac{-b - \sqrt{\Delta}}{2a}$

In this problem, we have a function h(t). Changing the coefficient c, the h-intercept h(0) changes. Looking at the formulas in the bullet point, the value of $\Delta$ changes, meaning that both the maximum value $y_v$ and the t-intercepts $t_1$ and $t_2$ will change, so option K is correct.