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arsen [322]
3 years ago
12

Beth is four years older than two thirds the

Mathematics
1 answer:
Goshia [24]3 years ago
7 0
Answer:

15

Steps:

B = 2/3M + 4

14 = 2/3M + 4

10 = 2/3M

M = 15
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A construction manager needs 12 workers to complete a building project in 54 days. Find in terms of T the number of workers need
ch4aika [34]

Answer:

<h3>2T/9</h3>

Step-by-step explanation:

A construction manager needs 12 workers to complete a building project in 54 days, we can write;

12 workers = 54 days

T find the number of workers needed to complete the same project in T days, we will write;

x workers = T days

Divide both equations

12/x = 54/T

Cross multiply

12T = 54x

x = 12T/54

x = 2T/9

Hence the number of workers needed to complete the same project in T days is 2T/9 workers

7 0
3 years ago
Find the inverse function of y=8x.
Zarrin [17]

Answer:

x/8

Step-by-step explanation:

how I see the problem I just put the 1 over the 8 because you can't really do anything else with the problem

4 0
3 years ago
How to write all real numbers less than -1 or greater than 1 as an inequality
Citrus2011 [14]

Answer:

|x| > 1

Step-by-step explanation:

The absolute value inequality

|X| > k

where X is an expression in x and k is a non-negative number is solved by solving the equivalent compound inequality

X < -k or X > k

Here you are working backwards. You know you want the compound inequality to be

x < - 1 or x > 1,

so using the variable expression x for the expression X and 1 for k, write the absolute value equation

|x| > 1

8 0
3 years ago
(2/3)^3x(2/3)^4 <br> write as a single power, then evaluate.
kow [346]

Answer:

\frac{128}{2187}

Step-by-step explanation:

Using the rule of exponents

a^{m} × a^{n} = a^{(m+n)}

(\frac{2}{3}) ^{3} × (\frac{2}{3}) ^{4}

= (\frac{2}{3}) ^{(3+4)}

= (\frac{2}{3}) ^{7}

= \frac{2^{7} }{3^{7} }

= \frac{128}{2187}

6 0
3 years ago
Read 2 more answers
Please help me with this :)
djyliett [7]
2.5 and 5 should be the answer
7 0
3 years ago
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