All categories

3 years ago

Help on the bottom one plzz help

Mathematics

1 answer:

Grace [21]3 years ago

8 0

In the first one is d and not c

You might be interested in

A student buys a guitar that is on sale for 15% off the regular price of $200. He also must pay an 8% sales tax. What is his tot

EastWind [94]

Answer:

option c

Step-by-step explanation:

a guitar 15% off means that the cost is now 85%

$100percent---200dollars\\85percent---x\:dollars\\\\x=\frac{200*85}{100}\\\\x=2*85\\\\x=170$

now the 8% of 170 is

$100\:percent---170\:dollars\\\\8\:percent---x\:dollars$

$x=\frac{8*170}{100}\\\\x=\frac{8*17}{10}\\\\x=13.6$

so the total cost is

170+13.6

183.6

6 0

3 years ago

5 pounds of bananas for $1.97 for 3 pounds of bananas for $1.05 which is better to buy

andrew11 [14]

Answer:

<h3>3 pounds for $1.05 is better since it is 35 cents a pound as opposed to 39 cents a pound for the other product.</h3>

Step-by-step explanation:

We need to find the unit rate. This found by dividing the price by the number of bananas so we get the price for 1 pound of bananas.

$1.97/5 = $0.39

$1.05/3 = $0.35

<h3>3 pounds for $1.05 is better since it is 35 cents a pound as opposed to 39 cents a pound for the other product.</h3>

8 0

3 years ago

Simplify 3 square root 7 minus 5 square root 7

Ymorist [56]

Answer:

ayeeeeeeeeeeeeeeeeeeeeeeeeeee

4 0

3 years ago

Multiply Decimals - Tutorial - Level E

leva [86]

The correct answer is 27.328

5 0

3 years ago

Solve the system of linear equations by elimination.<br> 9x+2y=39<br> 6x+13y=−9

vodomira [7]

y = -3

x = 5

Explanation:

$9x + 2y = 39 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: (2)\\ 6x + 13y = - 9 \: \: \: \: \: \: \: \: \: \: \: \: ( - 3) \\ \\ 18x + 4y = 78 \\ - 18x - 39y = 27 \\ \\ - 35y = 105 \\ y = \frac{105}{ - 35} \\ y = - 3 \\ \\ \\ 9x + 2y = 39 \\ 9x + 2( - 3) = 39 \\ 9x - 6 = 39 \\ 9x = 39 + 6 \\ 9x = 45 \\ x = \frac{45}{9} \\ x = 5$

3 0

2 years ago