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Fynjy0 [20]
3 years ago
7

Evaluate the expression for y = 3 and z = 3.5. (2z + 7) ÷ y

Mathematics
2 answers:
nirvana33 [79]3 years ago
8 0

Answer:

4 2/3 or 14/3

Step-by-step explanation:

(2z + 7) / y

2(3.5) = 7

(7 + 7) / 3

14 / 3

Hope this helped!

sergiy2304 [10]3 years ago
7 0

Answer: 4.666666666666667

Step-by-step explanation: z=3.5x2=7      (7+7)÷3=4.666666666666667

                                             y=3

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14 Metric System Conversion. Convert 26.2 miles into kilometers and round to the nearest tenth. (Hint: 1 mile= 1.609 km)
Mekhanik [1.2K]

Answer:

42.1558 km

Step-by-step explanation:

We know that 1 mile = 1,609 km

Then use this data as a conversion factor.

If we want to transform miles to kilometers then our conversion factor should be:

\frac{1,609\ km}{1\ miles}

Now we must multiply the number of miles by this factori and thus we obtain the equivalent in kilometers

26.2*\frac{1,609\ km}{1\ miles} = 42.1558 km

5 0
3 years ago
On Monday joe bought 10 cups of coffee and 5 doughnuts for his office at the cost of $16.50. On Tuesday he bought 5 cups of coff
svp [43]

Answer:

each cup cost 1.25 on Tuesday

4 0
4 years ago
What is the solution to the equation? 6x – 27 = –3 A. x = –5 B. x = –4 C. x = 4 D. x = 5
Fittoniya [83]
6x-27=-3 \ \ \ |+27 \\
6x=24 \ \ \ |\div 6 \\
x=4 \\
\hbox{answer C}
7 0
4 years ago
Two triangular roofs are similar. the corresponding sides of these roofs are 16 feet and 24 feet. if the altitude of the smaller
NISA [10]
Using the concept of proportionality we shall  solve for the unknown altitude as follows:
let the measure of the altitude be x:
24/16=x/6
solving for x we get:
x=24/16*6
x=9 feet
Answer: 9 feet


6 0
4 years ago
If all of the diagonals are drawn from a vertex of a hexagon, how many triangles are formed?
Elan Coil [88]
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C_{6}^{3}= \frac{6*5*4}{3*2*1}  =20
And the answer should be 20
5 0
3 years ago
Read 2 more answers
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