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3 years ago

Write the equation of the line parallel to the line 4x y = -1 and passing through the point (5,0).

1 answer:

6 0

4x + y = -1
y = -4x -1

slope of the parallel line
m = -4
General equation of the parallel line
y = -4x + c
if this passes through (5,0)
0 = (-4*5) + c
c = 20

so the equation is
y = -4x + 20

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Yuto and Lian are at train stations 1,880 kilometers apart. Yuto boards a train heading east at an average speed of 220 kilomete

ArbitrLikvidat [17]

For the answer to the question above, we'll have to use the formula for velocity which is v = d
 t and d = vt

Since the total distance is given, therefore we can get the time and it will look like this.

220t + 250t = 1880
470t = 1880
470 470
the problem indicates that the train runs 250kph
Let's substitute:

d = 250(4)

the distance traveled by Lian is 1000km

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3 years ago

If an item in Argentina now costs 5,000 pesos, what do you expect it to cost 7 years from now? (Answer to the nearest peso.) The

nevsk [136]

OUCH! 9.2% inflation :)

F=5000(1.092)^7

F=9258.24

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4 years ago

Can someone please help me with this

makvit [3.9K]

11 donuts i believe :)

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3 years ago

Richard’s store sells pineapples and grapefruits. Pineapples originally cost $5.15 apiece, and grapefruits originally cost $2.25

sveta [45]

Answer:

c. The price of grapefruits experienced a reduction 6.01 percentage points greater than the price of pineapples.

Step-by-step explanation:

The original price of Pineapples=$5.15

New price of Pineapples=$3.88

Find change in price of Pineapples

Change in price=original price- new price

$=5.15-3.88=1.27$

The price of Pineapple was reduced by $1.27

% reduction in price

(reduction value/original value) × 100

$=\frac{1.27}{5.15} *100=24.66$

=24.66%

The original price of grape fruits=$2.25

New price of grape fruits=$1.56

Change in price of grape fruit

Change in price= original price -new price

$=2.25-1.56=0.69$

% reduction in price of grape fruits

(reduction value/original value)×100

$=\frac{0.69}{2.25} *100=30.67$

=30.67%

Answers

The fruit that has its price reduced by a greater percentage is grape fruit

How many percentage points greater = 30.67%-24.66% = 6.01 points

5 0

3 years ago

Read 2 more answers

Alexis has a savings account that earns 2.1% interest compounded daily. If she opened the account 17 years ago with a deposit of

sergejj [24]

Compound Interest Formula: A = P(1 + r/n)^(n·t)

A = final amount r = rate, as a decimal (.021) t = number of years (17)

P = initial amount (2914.72) n = number of times compounded per year (365)

A = 2914.72(1 + .021/365)^(365·17) = $4165.20

Interest earned: $4165.20 - $2914.72 = $1250.48 <----- Answer

You might want to recalculate this, attempting to handle leap years, by replacing the number of times compounded per year with 365.25 and see if that has an effect

5 0

3 years ago