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taurus [48]
3 years ago
10

Alexander and Irene each buy video game. Alexander spent $62.40 on his game. Irene's spent 3/4 as much as Alexander. How much di

d Irene spend on her video game?
Mathematics
1 answer:
makvit [3.9K]3 years ago
3 0
                                     3/4 of 62.40 would be 46.80
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5. Mark's brother is five years older than Mark.
AleksAgata [21]

Answer:

9

Step-by-step explanation:

Let's say Mark is M and his brother is B.

M+5=B

M+B=23

Now we can solve using subsitution.

M+M+5=23

(Subtract 5 from both sides)

2M=18

M=9

Hope this helped!

8 0
3 years ago
What is 144÷8 in distributive property
aivan3 [116]
18 it is this please look144÷8=18
6 0
2 years ago
454 / 762 = ?
Maslowich

Answer:

huh-

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
In a study of 799 randomly selected medical malpractice​ lawsuits, it was found that 499 of them were dropped or dismissed. Use
Mademuasel [1]

Answer:

Claim is true that most medical malpractice lawsuits are dropped or dismissed.

Step-by-step explanation:

Given :In a study of 799 randomly selected medical malpractice​ lawsuits, it was found that 499 of them were dropped or dismissed.

To Find : Use a 0.05 significance level to test the claim that most medical malpractice lawsuits are dropped or dismissed.

Solution:

n =  799

x = 499

We will use one sample proportion test  

\widehat{p}=\frac{x}{n}\\\widehat{p}=\frac{499 }{ 799}\\\widehat{p}=0.6245

We are given that the claim is most medical malpractice lawsuits are dropped or dismissed.

Probability of dropped or dismissed is 1/2

 H_0:p=0.5\\H_a:p>0.5

Formula of test statistic = \frac{\widehat{p}-p}{\sqrt{\frac{p(1-p)}{n}}}

                                        =\frac{0.6245-0.5}{\sqrt{\frac{0.5(1-0.5)}{799}}}

                                       = 7.038

p value (z>7.038) is 0

α =0.05

So, p value < α

So, we reject the null hypothesis

So,claim is true

Hence most medical malpractice lawsuits are dropped or dismissed.

6 0
3 years ago
Rewrite using a single positive exponent.<br> 7^9 x 7^-2
lidiya [134]

Answer:

7^7

Step-by-step explanation:

When you multiply exponents with the same base, you add the exponents

Hope it helped!

6 0
2 years ago
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