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k0ka [10]
3 years ago
12

gretchen and Ezia received equal scores on a test made up of multiple choice questions and an essay. Gretchen got 18 multiple ch

oice questions correct and recived 19 points for her essay. Ezia got 15 multiple choice questions correct and received 31 points on her essay. how many points was each multiple choice question worth?
Mathematics
2 answers:
kati45 [8]3 years ago
7 0

Answer:

It's freaking 4 the answer on top is totally wrong don't listen to that it's 4 ;-; !?*

Step-by-step explanation:

timurjin [86]3 years ago
5 0
The multiply choice were worth 4 points. 
Gretchen= 18x+19
Ezia= 15x+31

So basically you can enter any number. At first I picked 3 and then I did the math and I got 73 points for Gretchen and 76 points for Ezia. 

Then I pick four and then I got 91 points for them both. This is how I got the answer: 

18x+19=15x+31
18(4)+19=15(4)+31
72+19=60+31
91=91
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What are you looking for here?
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3 years ago
How to I find a? It’s round to the nearest tenth.
Irina18 [472]

Answer:

a ≈ 21.8

Step-by-step explanation:

We require the third angle in the triangle

Subtract the sum of the 2 angles from 180

third angle = 180° - (75 + 31.8)° = 180° - 106.8° = 73.2°

Using the Sine rule, that is

\frac{a}{sin73.2} = \frac{22}{sin75} ( cross- multiply )

a × sin75° = 22 × sin73.2° ( divide both sides by sin75° )

a = \frac{22sin73.2}{sin75} ≈ 21.8 ( to the nearest tenth )

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3 years ago
Mohamed decided to track the number of leaves on the tree in his backyard each year. the first year, there were 500500500 leaves
VARVARA [1.3K]

Mohamed decided to track the number of leaves on the tree in his backyard each year. the first year, there were 500 leaves. each year thereafter, the number of leaves was 40% more than the year before. let f(n) be the number of leaves on the tree in Mohamed's backyard in the n^th year since he started tracking it. f is a sequence. what kind of sequence is it?

Number of leaves on the tree in first year = 500

The number of leaves was 40% more than the year before.

So rate of increase is 40/100 = 0.4

We use exponential growth formula,

f(n) = a(1+r)^n

Where a is the initial number, r is the rate of growth, n is the number of years

We know a= 500, r= 0.4

f(n) = 500(1+0.4)^n

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Plug in n=1,2,3...

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8 0
3 years ago
Read 2 more answers
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3 years ago
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kogti [31]
22300 because the tenths place is below five
8 0
3 years ago
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