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lina2011 [118]
3 years ago
12

ASAP please i need help

Mathematics
1 answer:
Alla [95]3 years ago
5 0

Answer:

1 hr 20 min.

Step-by-step explanation:

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At one​ store, Julia saved ​$10 with a coupon for 40​% off her total purchase. At another​ store, the ​$29 she spent on books is
barxatty [35]
Let "a" and "b" represent the values of the first and second purchases, respectively.
  0.40*(original price of "a") = $10
  (original price of "a") = $10/0.40 = $25.00 . . . . divide by 0.40 and evaluate
  a = (original price of "a") - $10 . . . . . . Julia paid the price after the discount
  a = $25.00 -10.00 = $15.00

At the other store,
  $29 = 0.58b
  $29/0.58 = b = $50 . . . . . . . divide by the coefficient of b and evaluate

Then Julia's total spending is
  a + b = $15.00 +50.00 = $65.00

Julia spent $65 in all at the two stores.
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3 years ago
What is the value of y that satisfies the
Allisa [31]
Y=4
3y/4=12/3
y=4 3/3=1
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3 years ago
HELP!!! Which graph best shows the function f(x) = 4(3)−x to represent the rate at which a radioactive substance decays?​
bagirrra123 [75]

Answer:

B

Step-by-step explanation:

The exponential function has the form y = a(b^x) where a is the starting value or y-intercept. B is the rate of change and x is the variable typically time. In this situation, y = 4(3^{-x}) has starting value 4, rate 3 and a -x.

Normally an exponential curve glides left to right growing steeper as it goes. But a -x flips this behavior. The curve starts very steep then gradually slows down. This means only graphs B or D are options. Since only graph B of these two has a y-intercept at 4, graph B is the solution.

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In a florist shop, the ratio to tulips is 7:2. The shop has 84 tulips on Friday morning. How will the ratio of roses to tulips c
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Answer:

It will stay the same.



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3 years ago
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ankoles [38]

Answer:

113 each day

Step-by-step explanation: i cant draw it out but just put it into a bubble or something sorry

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