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il63 [147K]
3 years ago
11

EASY MATH!!! GIVING BRAINLIEST!!!

Mathematics
1 answer:
Harman [31]3 years ago
8 0
120 grams half life at 45 days would be 60 then half life of 60 in another 45 days (90 total) should be 30 grams
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Five ninths times the difference of f and 32
Viktor [21]
If we put that into an equation, we get
(5/9)(f/32)
because "five ninths" is a fraction, "times" is multiplication (which can be represented by parenthesis), "the difference" is division, and "the difference of f and 32" is a fraction.
3 0
4 years ago
Calvin bought 6 ties for $19.50 each and three shirts for $23.50 each. how much did he spend?​
lions [1.4K]
The answer is $187.5 because you need to multiply 19.50 x 6 and that will equal 117.
$23.50 x 3 = 70.5. Add those two together and it will be $187.5
6 0
3 years ago
Suppose a normal distribution has a mean of 98 and a standard deviation of 6. What is P(x< or = to 110)
dem82 [27]

Answer:

97.8%

Step-by-step explanation:

110 is 2 standard deviations above the mean (6+6 = 12)

12+98 = 110

Looking at the standard deviation curve

P(x< or = to 110)  = 1 - P(x>110)

We can find the probability that x>100 by adding  anything above 2 standard deviations above the curve.

P(x>110) = 2.1+.1 = 2.2%

P(x< or = to 110)  = 1 - P(x>110)

                                = 1- 2.2%

                                = 1- .022

                                  = .978

                               = 97.8 %

4 0
3 years ago
Jennifer added $120 to her savings account during
enyata [817]
She had saved $480 before she added the money. Explanation: 700-120=480
4 0
3 years ago
Read 2 more answers
Plz help! Due at 8:26!
Vladimir79 [104]

Answer:

No it doesn't

Step-by-step explanation:

There's only 1 proportional quantity

8 0
3 years ago
Read 2 more answers
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