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iren2701 [21]
3 years ago
10

Will give brainlist plz help its for my 9 week exam a. 228 b. 229 c. 172 d. 171

Mathematics
1 answer:
natka813 [3]3 years ago
4 0

Answer:

I think its 229

if you take how many yellow marbles he got out of 7 it would be 3/7 and then I divided 400 by 7 and got 57. something so I multiplied 3 times 57 and got 171. So if you take 400-171 you get 229

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1.17 − 0.07a + (−3.92a) What is this ????
umka21 [38]

Answer: 17-3.99a

Step-by-step explanation:

Remove parentheses.

17- 0.07a- 3.92a17−0.07a− 3.92a

Collect like terms.

17+(−0.07a−3.92a)

Simplify.

17−3.99a

7 0
3 years ago
5) Paul invests $3,092 in a savings account
Mkey [24]

Answer:

R = 5% per year

Step-by-step explanation:

Solving for rate r as a decimal

r = n[(A/P)^1/nt - 1]

r = 4 × [(4,835.71/3,092.00)^1/(4)(9) - 1]

r = 0.05

Then convert r to R as a percentage

R = r * 100

R = 0.05 * 100

R = 5%/year

Summary:

The interest rate required to get a total amount of $4,835.71 from compound interest on a principal of $3,092.00 compounded 4 times per year over 9 years is 5% per year.

3 0
3 years ago
Sarris savings account balance change by $34 one week and by -$67 the next week which amount represents the greatest change
anygoal [31]
34 because it's a bigger number and -$67 is lower
8 0
4 years ago
AD=20, BC=2, AB= x 12,<br> and CD=x+ 12. Find x.
timama [110]
<h3>Solution:</h3>
  • Here, the whole line segment is AD.
  • So, AB + BC + CD = AD.
  • Given, AD = 20
  • BC = 2
  • AB = 12x
  • CD = x + 12
  • Therefore,

AB + BC + CD = AD

or, 12x + 2 + x + 12 = 20

or, 13x + 14 = 20

or, 13x = 20-14

or, 13x = 6

or, x = 6/13

  • So, x = 6/13
<h3>Answer:</h3>

x = 6/13

<h3>Hope it helps..</h3>

ray4918 here to help..

6 0
3 years ago
Before a new variety of frozen muffins is put on the market, it is subjected to extensive taste testing.People are asked to tast
Greeley [361]

Answer:

An experimental study

Step-by-step explanation:

An experiment deliberately imposes some treatment on individuals in order to observe their responses.

An experimental studies formulates some conditions in order to make an inference. An observational study tries to gather information without disturbing the scene they are observing.

This is then an experiment because people are deliberately asked to taste two muffins and asked for their response.

5 0
3 years ago
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