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Oksanka [162]
3 years ago
12

Could someone please help

Mathematics
2 answers:
Mumz [18]3 years ago
6 0
5/2=40/16. You can try to cross multiply by 2 times 40 and dividing by 16 to get 5.
Umnica [9.8K]3 years ago
5 0

 Im pretty sure the anwser is 5
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HELP PLZ!!!!!!!!!!!!!!!!!!!!!
Anna35 [415]

Answer:

30

Step-by-step explanation:

9 + 13 = 22

22 + 43 = 65

65 + 55 = 120

120 ÷ 4 = 30

hope this helps

3 0
3 years ago
C=2(y-k) solve for y​
marshall27 [118]

Answer:

\blue{y = \dfrac{C + 2k}{2}}

Step-by-step explanation:

C = 2(y - k)

C = 2y - 2k

C + 2k = 2y

\dfrac{C + 2k}{2} = y

y = \dfrac{C + 2k}{2}

5 0
2 years ago
Administrators at a large public high school are interested in their students’ standardized test scores. Last year, the mean sco
ratelena [41]

Answer:

The appropriate hypotheses for performing a significance test is:

H_0: \mu = 51

H_1: \mu > 51

Step-by-step explanation:

Last year, the mean score on the state’s math test was 51. The administrators have trained the teachers in a new method of teaching math hoping to raise the scores on this standardized test this year.

At the null hypothesis, we test if the mean score this year is the same as last year, that is:

H_0: \mu = 51

At the alternate hypothesis, we test if the mean score improved this year from last, that is:

H_1: \mu > 51

The appropriate hypotheses for performing a significance test is:

H_0: \mu = 51

H_1: \mu > 51

8 0
3 years ago
Algebra hcf<br>10xyz and 15y²z²​
boyakko [2]

Answer:

5yz

Step-by-step explanation:

1st expression=10xyz

=<u>5</u>*2*x*<u>y</u>*<u>z</u>

2nd expression=15(y)2 (z)2

=<u>5</u>*3*<u>y</u>*y*z*<u>z</u>

therefore H.C.F=5yz

underlines are taking common.

3 0
2 years ago
Which of the following measurements is the most accurate for a pellet with a mass of 3.25 grams?
Lynna [10]
The nearest value of the mass is <span>3.27 grams
it s near 3.25
answer is c</span>
8 0
3 years ago
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