All categories

2 years ago

Rita bought 4 rulers for $4.00. If r represents the number of rulers purchased, which equation represents this situation?

Mathematics

1 answer:

Wittaler [7]2 years ago

8 0

Answer: 4r = 4

Step-by-step explanation:

Ruth bought 4 rulers and each ruler is to be represented by r. She therefore bought:

= 4r

She bought these for a total of $4.00 so the equation then becomes:

4r = 4.00

Equation representing situation is: 4r = 4

You might be interested in

Which of the following correctly describes a concave polygon?

enyata [817]

The answer to this one is A

7 0

3 years ago

Add the two equations, 0.75x+1.5y=40 and −1.5x−1.5y=−60 , to find the value of x .

sergij07 [2.7K]

The value of x in the equation is 26.7

<h3>How to solve an equation?</h3>

0.75x + 1.5y = 40

−1.5x − 1.5y = −60

add both equation to eliminate y .

Therefore,

−1.5x + 0.75x = -0.75x

1.5y + (- 1.5y) = 0

40 + (-60) = -20

Hence,

-0.75x = - 20

divide both sides by -0.75

-0.75x / -0/75 = - 20 / -0.75

x = - 20 / -0.75

x = 26.6666666667

x = 26.7

learn more on equation here: brainly.com/question/7234676

#SPJ1

7 0

1 year ago

PLS HELP! URGENT 10 POINTS!!!

mixer [17]

Answer: 392.7

Step-by-step explanation:

A=πr2=π·52≈78.53982cm² (or 78.54)

78.54 x 5

8 0

3 years ago

Read 2 more answers

$1000 invested with compound interest at a rate of 15% per year for 9 years.

ivolga24 [154]

Answer:

The Final Investment Value is $\$3,517.88$

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

$t=9\ years\\ P=\$1,000\\ r=0.15\\n=1$

substitute in the formula above

$A=1,000(1+\frac{0.15}{1})^{1*9}$

$A=\$3,517.88$

5 0

3 years ago

What is the value of x in the isosceles trapezoid below? 4x+37=9x

erma4kov [3.2K]

Answer:

X=11

Step-by-step explanation:

8 0

3 years ago