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Katyanochek1 [597]
4 years ago
14

A varies directly with B. If A=44 when B=110, find A when B=140

Mathematics
1 answer:
Kay [80]4 years ago
7 0

\frac{44}{a}  =  \frac{110}{140}

a =  \frac{44 \times 140}{110}  = 56

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Melanie is 5 years younger than twice Michael's age. Which expression represents Melanie's age? *
Sphinxa [80]
Answer: c) 2x-5

We can represent two times micheal’s age as 2x, and 5 years younger would be you subtract 5
So the answer is 2x-5
7 0
4 years ago
What is the 25th term of the arithmetic sequence where a1 = 8 and a9 = 48?
Yuki888 [10]

Answer: a_{25} = 128

Step-by-step explanation:

You need to use this formula:

a_n = a_1 + (n - 1)d

Where a_n is the nth] term,  a_1 is the first term,"n" is the term position and  "d" is the common diference.

You must find the value of "d". Substitute a_1=8, a_9=48 and n=9 into the formula and solve for "d":

48 = 8 + (9 - 1)d\\48=8+8d\\48-8=8d\\40=8d\\d=5

Now, you can calculate the 25th term substituting into the formula these values:

a_1=8

d=5 and n=25

Then you get:

a_{25} = 8 + (25 - 1)5

a_{25} = 8 + 120

a_{25} = 128

4 0
3 years ago
Bertha bought a cake that weighs 7 kilograms. Jessup's cake weighs 6,537 grams.
castortr0y [4]
The answer is C- Berthas cake weighs 463 grams more than Jessups cake
3 0
2 years ago
Michael had $550 in his savings account. He took out $30.75 every month for one year. What is the net change in Michael’s accoun
Kaylis [27]
$550.
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8 0
3 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
qaws [65]
16/12 = (x-1)/6
x-1 = 4/3 . 6
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32/24 = (y+1)/21
y+1 = 4/3 . 21
y = 84/3 - 1 = 25
8 0
3 years ago
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