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Aleks04 [339]
3 years ago
10

Francis missed 3 questions on his science test. Paige missed 1 more than twice as many questions as Francis. How many questions

did Paige miss?
Mathematics
1 answer:
lesya692 [45]3 years ago
8 0
The equation rx3+1 can be used to solve the problem,and your answer ends up being 7.
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The total cost of lunch is $3.50, consisting of a juice, a sandwich, and a pear. The juice cost 1.5 times as much as the pear. T
vodka [1.7K]

The price of the pear is $0.6

Given:

The total cost of lunch is $3.50, consisting of a juice, a sandwich, and a pear.The juice cost 1.5 times as much as the pear.The sandwich costs $1.40 more than the pear.

From above statements

Juice + sandwich + pear = $3.50      -----------eq(1)

Juice = 1.5 * pear

sandwich = pear + $1.40

substitute juice and sandwich values in eq(1)

1.5 pear + pear + $1.40 + pear = $3.50

3.5 pear = $3.50 - $1.40

pear = $2.10/3.5

pear = $0.60

Hence the price of the pear is $0.6

Learn more about the price and pear here:

brainly.com/question/22237949

#SPJ1

3 0
1 year ago
Joses ACT score had a z-score of .75.what was his ACT score?<br><br><br> mean score=21.1 sd=5.2
Zielflug [23.3K]

Answer:

X \sim N(21.1,5.2)  

Where \mu=21.1 and \sigma=5.2

And the z score is given by:

z = \frac{x -\mu}{\sigma}

And since z = 0.75 we can replace like this:

0.75 = \frac{x- 21.1}{5.2}

And if we solve for x we got:

x = 21.1 +0.75*5.2 = 25

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the ACT scores of a population, and for this case we know the distribution for X is given by:

X \sim N(21.1,5.2)  

Where \mu=21.1 and \sigma=5.2

And the z score is given by:

z = \frac{x -\mu}{\sigma}

And since z = 0.75 we can replace like this:

0.75 = \frac{x- 21.1}{5.2}

And if we solve for x we got:

x = 21.1 +0.75*5.2 = 25

6 0
3 years ago
5 Miles 17 Deer 5 Mlies Predict the number of deer in a 25 square mile section of the mountains based on the sampling from the f
grigory [225]

Answer:

Step-by-step explanation:

Its 27

7 0
2 years ago
ASAP HELP
ELEN [110]
-11 is the answer

2(-2)-3(3)-(-2)
-4-9+2
-13+2
-11
3 0
3 years ago
PLEASE HELP THANK YOU!
Vsevolod [243]

Answer:

um wow that is realy hard

Step-by-step explanation:

8 0
3 years ago
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