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Monica [59]
3 years ago
8

Evaluate 18 divided 2a if a = 3

Mathematics
1 answer:
Andreas93 [3]3 years ago
5 0

Answer:

3

Step-by-step explanation:

\frac{18}{2a}

a = 3

\frac{18}{2(3)}

multiply 2 and 3

2 * 3 = 6

\frac{18}{6}

simplify

18/6 = 3

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4(z-5)+2=4z-18 <br> A 0<br> B 1<br> C infinitely many
Katarina [22]
<span>4(z-5)+2=4z-18 
4z - 20 + 2 = 4z - 18
4z - 18 = 4z - 18
0 = 0
answer
</span><span>C infinitely many</span>
4 0
3 years ago
A man walks 10 miles in x hours. How far does he walk in one hour?
Andreas93 [3]

Answer:

Option  (c) is correct.

The distance covered by the man in 1 hour is represented by te expression  \frac{10}{x} miles.

Step-by-step explanation:

Given: A man walks 10 miles in x hours.

We have to choose a correct  expression that represents the distance covered by the man in 1 hour.

Consider the given statement."A man walks 10 miles in x hours."

Using UNITARY METHOD,

(is a method in which we first find the value of a single unit and then multiply it with desired quantity)

Distance covered by man in x hours = 10 miles,

So distance covered by man in 1 hour = \frac{10}{x} miles.

So, The distance covered by the man in 1 hour is represented by te expression  \frac{10}{x} miles.

5 0
3 years ago
The question is in the photo. Please answer with the correct answer.
Oksanka [162]

Answer: 4, 2

Step-by-step explanation:

6 0
3 years ago
How to do this question plz answer me step by step plzz ​
galina1969 [7]

Answer:

No

Step-by-step explanation:

Diameter= 180cm

Circumference of each table

= πD

= 180π cm

Each table can fit

= 180π ÷70

= 8 guests (nearest whole number)

Since there are 18 tables, total number of guests

= 8(18)

= 144 guests

Since there are only enough tables to sit 144 guests, there are not enough tables to fit 145 guests.

Note that we cannot take the sum of the circumference for 18 tables than divide by 70 to see how many guests can fit because a guest can only be sitted on one table.

If that was done,

Total circumference

= 180π(18)

= 10179 cm (5 s.f.)

Total number of people

= 10179 ÷70

= 145 people (3 s.f.)

This is incorrect.

5 0
3 years ago
QUESTION:
yawa3891 [41]

Answer:

Step-by-step explanation:

multiplicas 0.50 por 7 , el resultado es 3.5, 3.5 lo sumas a 10 y eso es el resultado de lo que ella ganaría 13.50 dólares por hora después de trabajar 7 años con ellos.

a)You multiply 0.50 by 7, the result is 3.5, 3.5 l add to 10 and that is the result of what she would earn, $ 13.50 per hour after working 7 years with them.

6 0
3 years ago
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