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3 years ago

PLEASE HELP! Thank you if you helped! Will give Brainliest

Mathematics

1 answer:

pogonyaev3 years ago

5 0

Rent all

55.5/3 = 18.5

74/4 = 18.5

it costs 18.5 per day

1. y = 18.5 x where y =cost and x=days

A-1

10.99 per 1/2 day

10.99 * 2 =21.98 per day

2. it costs 21.98 per day from A-1

Rentall is the better deal because it is only 18.50 per day versus 21.98 per day

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Alan, Bill, and Calvin are playing a game with collectible cards. At the moment, Alan has 11 less than 2 1/2 times the number of

kramer

Bill has 12 cards. I figured this out by making a table and drawing an equation:

7 0

3 years ago

Mrs. Johnson’s class sold cookies for $2.50 each and Mr. Smith’s class sold popcorn for $1.50 each. Together, the classes sold 5

sashaice [31]

Answer:

(a) Mrs. Johnson’s class sold 26 cookies, Mr. Smith’s class sold 27 popcorn.

(b) Mrs. Johnson’s class earned $\$65.$ Mr. Smith’s class earned $\$40.5.$ Hence, Mrs. Johnson’s class earned more.

Step-by-step explanation:

Let x be the number of cookies Mrs. Johnson’s class sold and y be the number of popcorn Mr. Smith’s class sold.

(a) If Mrs. Johnson’s class sold x cookies for $2.50 each, then they earn $2.50x. If Mr. Smith’s class sold y popcorn for $1.50 each, then they earn $1.50y. In total, $2.50x+$1.50y=$105.50.

Together, the classes sold 53 items, then x+y=53.

You get the system of two equations:

$\left\{\begin{array}{l}x+y=53\\ \\2.5x+1.5y=105.5\end{array}\right.$

Solve it

$\left\{\begin{array}{l}x+y=53\\ \\2.5x+1.5y=105.5\end{array}\right.\Rightarrow \left\{\begin{array}{l}x=53-y\\ \\2.5(53-y)+1.5y=105.5\end{array}\right.,$

$132.5-2.5y+1.5y=105.5,\\ \\132.5-105.5=2.5y-1.5y,\\ \\y=27,\\ \\x=53-27=26.$

(b) Mrs. Johnson’s class earned $\$2.50\cdot 26=\$65.$ Mr. Smith’s class earned $\$1.50\cdot 27=\$40.5.$ Hence, Mrs. Johnson’s class earned more.

8 0

3 years ago

and solve the problem. 1. Shamariah collects silk roses. She had 17 silk roses in a vase. Six friends each gave her 3 more roses

gtnhenbr [62]

Given

Shamariah collects silk roses.

She had 17 silk roses in a vase.

Six friends each gave her 3 more roses

Find out the roses does Shamariah have now.

To proof

As given in the question

She had 17 silk roses in a vase

Six friends each gave her 3 more roses

let the total number of roses shamariah have = x

The equation becomes

x = 17 + 6 × 3

x = 17 + 18

x = 35

Number of roses shamarah have now is 35.

Hence proved

5 0

4 years ago

Calculate the interest paid when 4920 is invested at 13% p.a simple interest for eight years

Jlenok [28]

Answer:

I'll setup the problem and you can do the calculations

Step-by-step explanation:

The formula for simple interest:

I = P*r*t

I = interest

P = principle or amount invested

r = interest rate per period (period is a year)

t = number of periods

P = 4920

r = .13

t = 8

if you have questions, send a comment

5 0

4 years ago

One number is eight less than a second number. Five times the first is 6 more than 6 times the second. Find the numbers. The val

Ilia_Sergeevich [38]

Answer:

I think the value of first number is 30.

4 0

3 years ago