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mr_godi [17]
2 years ago
6

Can someone help me solve #3 and it needs to be a 6th grade type answer? I will put you as brainliest if you can solve also I ne

ed an explanation of you don’t mind. I need this answered correctly ASAP

Mathematics
2 answers:
yulyashka [42]2 years ago
5 0

Answer:

Step-by-step explanation:

{4 (g-h)+10     g = 12, h = 7}

4 (12-7)+10

4*5+10

20+10

30

goldenfox [79]2 years ago
4 0

Answer:

24

Step-by-step explanation:

8-2z + 3[x + y] ,when x=4, y=9, z=3

8-23 + 3[4 + 9]

8-23= -15

3[4 + 9]= 39

-15+39=24

your answer is 24

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Cookies are sold singly or in packages of 3 or 9. With this packaging, how many ways can you buy 18 cookies?
tresset_1 [31]
I believe 5 different ways. The options being two packs of 9-one pack of 9 and 3 packs of 3- 1 pack of 9, 2 packs of 3 and 3 singles- one pack of 9, one pack of 3, and 6 singles- and then one pack of 9 and 9 singles.
Hope this helped!

8 0
3 years ago
How many atoms of element X with one valence electron will combine with one oxygen atom?
vlabodo [156]

Answer:

A)

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Suppose taxi fare from Logan Airport to downtown Boston is known to be normally distributed with a standard deviation of $2.50.
Mariulka [41]

Answer:

95% Confidence interval for taxi fare:  ($20.5,$24.2)

Step-by-step explanation:

We are given the following data set: for fares:

$22.10, $23.25, $21.35, $24.50, $21.90, $20.75, and $22.65

Formula:

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{156.5}{7} = 22.35

95% Confidence interval:

\bar{x} \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

22.35 \pm 1.96(\frac{2.5}{\sqrt{7}} ) = 22.35 \pm 1.85 = (20.5,24.2)

6 0
3 years ago
HELLPPPPP<br> Write the equation y=-3/4x+2 in standard form.
Karo-lina-s [1.5K]
The standard form is 3x+4y=8
3 0
3 years ago
Which transformation represents a reflection over the y = x line?
dmitriy555 [2]

Answer:

see explanation

Step-by-step explanation:

Under a reflection in the line y = x

a point (x, y ) → (y, x )

4 0
3 years ago
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