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Romashka [77]
3 years ago
12

42 = 7r Answer the question.

Mathematics
2 answers:
Brrunno [24]3 years ago
6 0

Answer:

r = 6

Step-by-step explanation:

Divide both sides by 7

Which is written like this:

42/7 = 7r/7

Which 42/7 = 6

and 7/7 = 1

=> 6 = r or r = 6

raketka [301]3 years ago
5 0

Answer:

r=6

Step-by-step explanation:

42=7r

r=42/7

r=6

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One Night , a Man and a Woman are on a boat the man jumps from the boat and the woman does the same who is left?
malfutka [58]

Answer:

The sailor

Step-by-step explanation:

If a man and woman jumped from a boat into the sea or whatever they jump into. The Sailor will be left on the boat.

Hope I am correct.

7 0
3 years ago
For real number a, which of the following equations are true ? Select all that apply.
trapecia [35]

ANSWER

\lim_{x \to \: a}(x)  = a

\lim_{x \to \: a}(a)  = a

\lim_{x \to \: 5}(x)  = 5

EXPLANATION

For real number 'a',

\lim_{x \to \: a}(x)  = a

is true because we have to plug in 'a' for x.

\lim_{x \to \: a}(a)  = a

This is also true because limit of a constant is the constant.

\lim_{x \to \: 5}(4)  = 5

is false. The correct value is

\lim_{x \to \: 5}(4)  =4

\lim_{x \to \: 5}(x)  = 5

is also true because we have to substitute 5 for x.

\lim_{x \to \: a}(a)  = x

is also false

The limit should be

\lim_{x \to \: a}(a)  = a

3 0
3 years ago
Find the domain of f(x) =<br><img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B%20%5Csqrt%7Bx%20-%201%7D%20%7D%20" id="TexFo
mojhsa [17]

\dfrac{x}{\sqrt{x-1}}\\\\The\ domain:\\\\x-1 > 0\ \ \ |+1\\\\x > 1\to x\in(1,\ \infty)

5 0
3 years ago
6 Edgar, Sid, and Dylan have $90 all
Alla [95]

The equation that can be used to find the amount  of money that Sid and Dylan each have is 0.5E = $57

<h3>Equations that can be derived from the question </h3>

The following equations can be deduced from the question:

a + b + c =$90 equation 1

$33 + b + c = $90 equation 2

Where:

  • a = amount of money Edgar has
  • b = amount of money Sid has
  • c = amount of money Dylan has

In order to determine the amount of money that Sid and Dylan have, make b and c the subject of the formula in equation 2

b + c = $90 - $33

b + c = $57

Since both people have the same amount of money, the equation becomes

0.5(b + c) = $57

0.5E = $57

To learn more about equations, please check: brainly.com/question/25875552

8 0
3 years ago
Solve for x<br><br> 2 1/7 3/7(3x−5)=−4
galben [10]
2*1/7*3/7(3x-5)=-4 <=> 6/49(3x-5)=-4 <=> 3x=-4*49/6+5
x=(-196+30)/(3*6)
x=-166/18=-1.44
7 0
3 years ago
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