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ivolga24 [154]
3 years ago
12

2. Meryl spends a total of $68.82 for 2 pairs of 68.8

Mathematics
1 answer:
kupik [55]3 years ago
5 0

Answer:

The cost of each pair of sneakers is $33.25.

Step-by-step explanation:

Consider the provided information.

Meryl spends a total $68.82 for 2 pairs of sneakers with the same cost.

If the sales tax is $5.32 and she also uses a coupon for $3.00 off her purchase.

First subtract the sales tax from the spend amount.

\$68.82- \$5.32=\$63.5

She use a coupon for $3.00 OFF.

\$63.5+\$3=\$66.5

$66.5 was the cost of 2 pairs of sneakers before using the coupon.

Now divide $66.5 by 2 so that we can find the cost of one pair of sneakers.

\frac{\$66.5}{2} =\$33.25

Hence, the cost of each pair of sneakers is $33.25.

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The heights (in cm) and arm spans (in cm) of 31 students were measured. The association between x(height) and y(arm span) is sho
abruzzese [7]

Answer:

27.385 cm longer would we expect Mike's arm span to be than George's.

Step-by-step explanation:

We have to find how many centimeters longer would we expect Mike's arm span to be than George's using the equation:

y= 4.5x + 0.977 x

where y= arm span

and x= height

Given:

Mike's height=x = 175 cm

so Mike's arm span= y= 4.5 x + 0.977 x

                                    = 4.5* (175) + 0.977* (175)

                                    = 787.5 + 170.975

                                    = 958.475 cm

George's height = x = 170 cm

so George's arm span= y= 4.5 x + 0.977 x

                                    = 4.5* (170) + 0.977* (170)

                                    = 765 + 166.09

                                    = 931.09 cm

Mike's arm span longer than George's = Mike's arm span - George's arm span

                                                                 = 958.475 - 931.09

                                                                 = 27.385 cm.

8 0
3 years ago
Every year, for the annual school bake sale,
Leno4ka [110]

Answer: Annie will have to make 228 cookies

explanation:

let y represent the total number cookies   that Annie will make.

<h3>y= 342*(2/3)</h3><h3>y=228</h3><h3 /><h3 />

5 0
3 years ago
What is the probability that a randomly drawn marble from bag is green. Given that it is not red?
tatiyna

Answer:

The probability is 0.2, or 20%.

Step-by-step explanation:

A probability is the ratio of the number of relevant outcomes and the number of all possible outcomes. If we know that the marble drawn is not red, the number of possible outcomes N is

N = (number of blue marbles) + (number of green marbles) = 25

and the number of relevant outcomes (marble being green) is n:

n = (number of green marbles) = 5

So, the probability is

P = n / N = 5 / 25 = 1 / 5 or 0.2, or 20%

6 0
3 years ago
How to answer this ?
hichkok12 [17]

Answer:

a)3,6,9,12,15,18,24 b)7,14,21,28,35,52,49,56

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Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
For altitudes up to 36,000 feet, the relationship between ground temperature and atmospheric
Verizon [17]

Answer:

The equation for a is a=-\frac{2000}{7}*(t-g)

The altitute is 101,428.57 feet

Step-by-step explanation:

You know that the relationship between ground temperature and atmospheric  temperature can be described by the formula

t = -0.0035a +g

where:

  • t is the atmospheric  temperature in degrees Fahrenheit
  • a is the altitude, in feet, at which the atmospheric temperature is  measured
  • g is the ground temperature in degrees Fahrenheit.

Solving the equation for a:

-0.0035a +g=t

-0.0035a= t - g

a=\frac{t-g}{-0.0035}

a=-\frac{2000}{7}*(t-g)

<u><em>The equation for a is </em></u>a=-\frac{2000}{7}*(t-g)<u><em></em></u>

If the atmospheric temperature is -305 °F and the ground temperature is 50 °F, then t= -305 °F and g= 50 °F

Replacing in the equation for a you get:

a=-\frac{2000}{7}*(-305-50)

a=-\frac{2000}{7}*(-355)

a= 101,428.57

<u><em>The altitute is 101,428.57 feet</em></u>

4 0
3 years ago
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