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Illusion [34]
3 years ago
14

Mary and roberto bought identical backpacks at different stores. marys backpacks originally cost $65 and was discounted 25%. rob

ertos backpack orignally cost $75 and was on sale for 30% off the original price.which backpack was a better buy?
Mathematics
1 answer:
garri49 [273]3 years ago
6 0
Mary's backpack: 25% of 65 = 0.25 * 65 = 16.25; 65 - 16.25 = $48.75
Roberto's backpack: 30% of 75 = 0.3 * 75 = 22.5; 75 - 22.5 = $52.5

Mary's backpack was a better buy because it was cheaper. 
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In this code puzzle, each letter has a different numerical value. The totals are reached by adding together individual values in
BARSIC [14]
STEAM = 48 and MAST = 44 , this can also be written as S+T+E+A+M = 48 and M+A+S+T = 44 so STEAM - MAST = 48 - 44 = 4 ,so now we know the value for E , TEA = 27 so knowing E equals TA = 23 ,MAST - TA = 44 - 23 = 21 = MS , STEM - MS - E = T = 36 - 21 - 4 = 11 , TA - T = A = 23 - 11 = 12, SEA - A - E = S = 22 - 11 - 4 = 7, STEM - S - T - E = 36 - 7 - 11 - 4 = 14 = M ,
so now after all that we know that ,
E = 4
S = 7
T = 11
A = 12
M = 14

so ESTEEM = 4 + 7 + 11 + 4 + 4 + 14 = 44
8 0
4 years ago
Freda saved $4 each week for 8 weeks to donate she donates the same amount to 2 charities how much will freda donate to each cha
bogdanovich [222]

Answer:

$16

Step-by-step explanation:

4 * 8 = 32

32/ 2 = 16

If she saves four dollars a week for eight weeks and divides her savings to donate to two charities, each charity would recieve $16

8 0
3 years ago
Helpp
Georgia [21]

Answer:

see explanation

Step-by-step explanation:

The average rate of change over the closed interval [ a, b ] is

\frac{f(b)-f(a)}{b-a}

here [ a, b ] = [ 0, 8 ]

f(b) = f(8) = \frac{16-2}{40-6} = \frac{14}{34} = \frac{7}{17}

f(a) = f(0) = \frac{-2}{-6} = \frac{1}{3}

f(b) - f(a) = \frac{7}{17} - \frac{1}{3} = \frac{4}{51}

average rate of change = \frac{\frac{4}{51} }{8} = \frac{1}{102}

7 0
3 years ago
Two groups went hiking, leaving at the same time and arriving back at the same time. While one group moved away at the speed 6 m
Evgesh-ka [11]

Step-by-step explanation:

d = the distance in one direction.

the time t1 it took group 1 was

t1 = d/6 + d/4

and t2 for group 2 moving with speed2 all the way

t2 = (d+d)/speed2

we know

2d = 24 miles

d = 12 miles

t1 = t2

so,

12/6 + 12/4 = 24/speed2

2 + 3 = 24/speed2

5 = 24/ speed2

5×speed2 = 24

speed2 = 24/5 = 4.8 mph

the second group moved with 4.8 mph.

5 0
2 years ago
Stacy goes to the county fair with her friends. The total cost of ride tickets is given by the equation c = 3.5t, where c is the
vredina [299]
You would take 3.5(15) to get $52.50 as your final answer.
6 0
3 years ago
Read 2 more answers
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