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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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Dave delivered 52 newspapers all together on Saturday and Sunday. He delivered 8 more newspapers on Sunday than on Saturday. How
Harman [31]
Let x=papers on Saturday and y=papers on Sunday

First make equations for the information given to you

x+y=52   (total papers)            and              y= x+8     (he sold 8 more on Sunday)

then since you know y=x+8 then substitute it in the other equation like so

x+(x+8)=52 which means 2x+8=52 which means 2x=44 and therefore x=22

the problem however asks for sunday and not saturday, so solve for y now

y=x+8 which means y=22+8 which means y=30

He sold 30 papers on Sunday
4 0
3 years ago
1. Anne wants to join five pieces of paper together. She plans to use 3 rectangular pieces of the same size and 2 square pieces
Artyom0805 [142]

Answer and explanation:

Surface area of a rectangle = length * width

Surface area of a square = a² where a is length of a side

To find total surface area of the the five pieces of paper, we add up all the areas of all the shapes

Given that length of rectangle =3.5

And width = 2

Area of rectangle =3.5*2=7

Area of 3 rectangles given they are all equal = 7*3=21

Since width of rectangle equal to width of square and all sides of square are equal

Area of square = 2 *2 =4

Area of the two squares =4*2=8

Total surface area of the five plane shapes = 21+8= 29

8 0
3 years ago
I need help with the anwser and u help me?
BaLLatris [955]
H because there are 6 spaces and 1 is white so 1 over 6 is 1/6
4 0
3 years ago
Read 2 more answers
Write using exponents. Rewrite the expression below in the same sequence: 4·4·4·a·b·a·b
spayn [35]
4^3 ab^2

Four would be cubed (to the third power) and ab would be squared (to the second power)
5 0
3 years ago
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Assume that a procedure yields a binomial distribution with n trials and the probability of success for one trial is p. use the
mamaluj [8]

A binomial distribution is an experiment where there are two outcomes; Success and failure. For instance, you are given n = 128 and p = 0.27. The formula for the variance of a binomial distribution is n*p(1 – p) or n*p*q*. They are equivalent because q = 1- p. We will use the first equation.

 

Variance = n*p*(1 – p)

Variance = 128*0.27*(1 – 0.27)

Variance = 25.23

 

To get the standard deviation, find the square root of the variance.

Standard deviation = sqrt (Variance)

Standard deviation = sqrt (25.23)

<span>Standard deviation = 5.02</span>

7 0
3 years ago
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