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anastassius [24]

2 years ago

12

Marcy went to store and bought a t-shirt for $7.89 and a skirt for $10.99. There was a 25% discount off everything in the store.

How much did she pay, not including tip?

1 answer:

Anit [1.1K]2 years ago

8 0

Answer:

$5.91 for the t-shirt. $8.24 for the skirt

Step-by-step explanation:

It's correct don't worry. The problem is I cant explain but it's correct, also if you can please give brainliest

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When Marco swim, the number of calories burned after time x, In minutes, is given by the equation

Cloud [144]

Answer : 4. 576

Y= 330 + 8.2(30)

330 +246

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2 years ago

what is true about the solutions of a quadratic equation when the radical in the quadrant formula is negative

lisov135 [29]

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2 years ago

In tests for intoxication, blood alcohol levels are expressed as percentages by volume. A blood alcohol level of 0.080% by volum

GaryK [48]

Answer:

The required volume is 5 ml.

Step-by-step explanation:

Given : In tests for intoxication, blood alcohol levels are expressed as percentages by volume. A blood alcohol level of 0.080% by volume means 0.080 mL of ethanol per 100 mL of blood and is considered proof of intoxication. If a person's total blood volume is 5.0 L.

To find : What volume of alcohol in the blood gives a blood alcohol level of 0.100 % by volume?

Solution :

According to question we use the formula,

$\text{Present Volume}=\dfrac{\text{Vol}_{\text{Alcohol}}}{\text{Vol}_{\text{total}}}\times 100\%$

The percentage of a blood alcohol level is 0.100%

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Substitute the value in the formula,

$0.100=\dfrac{\text{Vol}_{\text{Alcohol}}}{5000}\times 100$

$\frac{0.100}{100}=\dfrac{\text{Vol}_{\text{Alcohol}}}{5000}$

$\text{Vol}_{\text{Alcohol}}=\frac{0.100\times 5000}{100}$

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8 0

3 years ago

A company is planning to manufacture snowboards. The fixed costs are $ 100$100 per day and total costs are $55005500 per day at

Rama09 [41]

Answer:

The equation for total cost function is

C(x)=100+270x

Step-by-step explanation:

Variable cost per per board =total cost per day-fixed cost per day/daily output

total cost per day is $5,500

fixed cost per day is $100

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Since daily output is represented also by x ,total cost function is given thus:

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3 years ago

Find the perimeter of the semicircle when diameter is 3.5 cm. (1 Point)

Feliz [49]

● Answer:

8.995 cm

● Step-by-step explanation:

P = d + L/2

d = 3.5 cm

L/2 = 2pi×r/2

= pi×d/2

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= 5.495 cm

P = 3.5cm + 5.495

= 8.995 cm

8 0

3 years ago