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3 years ago

I will give 50 pts, please answer, im so sad and need help

Mathematics

2 answers:

arlik [135]3 years ago

8 0

Answer:

b. (-4/3)

Step-by-step explanation:

the average rate of change in the interval is the slope

(-1,4) (2,0)

slope = (y2-y1)/(x2-x1)

slope = (0-4)/(2--1)

slope = (-4)/(2+1)

slope = (-4/3

Afina-wow [57]3 years ago

5 0

Answer:

First, you want to solve for the equation for this problem, would be:

0.05N + 0.10D = 20.50

While N = The amount of nickels, and D = The amount of dimes.

Since N = 164, and D = 123. It would add up to 287 coins. 164 + 123 = 287.

Now that you have the number for those two variables, solve the equation for when N = 164, and D = 123.

0.05N + 0.10D = 20.50

0.05(164) + 0.10(123) = 20.50

8.2 + 12.3 = 20.50

20.50 = 20.50

So, there is 164 nickels, and 123 dimes for your answer.

I hope this helps!

Step-by-step explanation:

You might be interested in

Complete the equation that represents the total value of the nickels and p pennies

vovikov84 [41]

Answer:

<em>Answers below</em>

Step-by-step explanation:

<u>Equation</u>

Let's call:

p = number of pennies Janesa has in her pocket

n = number of nickels Janesa has in her pocket

She has 24 coins in total, thus:

$p + n=24\qquad\qquad [1]$

Since each penny is worth $0.01 and each nickel is worth $0.05, and Janesa has $1 in total:

$0.01p+0.05n=1$

Multiplying by 100:

$p+5n=100\qquad\qquad [2]$

A. Completing the equation:

$5n+p=100$

From [1]:

$p=24-n$

Substituting into [2]:

$24-n+5n=100$

Simplifying:

$24+4n=100$

Rearranging:

$4n=100-24=76$

$n=76 / 4= 19$

$p=24-19=5$

B. There are 5 pennies in Janesa's pocket

C. Since each penny is worth $0.01, the total value of pennies is 5*$0.01=$0.05

The total value of the pennies is $0.05

D. The total value of the nickels is 19*$0.05 = $0.95

E. Jackson should say she has 19 nickels and 5 pennies

5 0

2 years ago

Read 2 more answers

Find the GCF. 14abc and 28 a 2 b 2 c 3

9966 [12]

4 because 14abc would equal 108 the factors of 108 are 1,2,3,4,6,9,12,18,27,36,54,108 the factors of 28 are 1,2,4,7,14,28 so it's 4

7 0

3 years ago

PLEASE HELP!!!!!

nasty-shy [4]

The total charge would be $445.

Hope this helps!!

6 0

3 years ago

2. A man buys eggs at 55kobo a score . he finds that 10% of the eggs are unsellable but sells the rest at 60kobo a dozen .find i

liubo4ka [24]

Answer:

Percentage Profit is 63.63%

Step-by-step explanation:

The man buys 440 eggs at 55 pence a score

i.e. he buys 20 eggs for 55 pence

He buys 1 egg for 55/20 = 2.75 pence

Therefore, he buys 440 eggs for = 440 × 2.75 = 1210 pence

10% eggs are unsaleable

thus he sold = 440 - 440 × 10/100 = 440 - 44 = 396 eggs

Eggs sold in dozen = 396/12 = 33

He sold 1 dozen for = 60 pence

Thus, he sold 33 dozen for = 33 × 60 = 1980 pence

Profit = 1980 - 1210 = 770 pence

% Profit = (770/1210) × 100 = 63.63%

(hope this helps can i plz have brainlist :D hehe)

3 0

3 years ago

A plan of a garden is shown below.

siniylev [52]

The length and width of the conservatory are both 4.5 meters

<h3>How to determine the length and the width?</h3>

From the figure, we have the following highlights:

Length = 3 units
Width = 3 units

A unit = 1.5 meters

So, we have:

Width = Length = 3 * 1.5 meters

Width = Length = 4.5 meters

Hence, the length and width of the conservatory are both 4.5 meters