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AveGali [126]
3 years ago
11

I need help with 7 (M + 5) = 21

Mathematics
2 answers:
emmainna [20.7K]3 years ago
8 0

Answer:

7(M+5)=21

or, 7M+35=21

or, 7M=21-35

or, 7M=-14

or,M=-14/7

or, M=-2

Nina [5.8K]3 years ago
7 0

Answer:

M = -2

Step-by-step explanation:

7 (M + 5) = 21

7M + 35 = 21

7M = 21 - 35

7M = -14

M = -14/7

M = -2

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adjective

definition:

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Find the area of the shaded region below.<br> 12 cm<br> &lt;<br> 8 cm<br> 3 cm<br> 5 cm
Zina [86]

Answer:

36 cm^2

Step-by-step explanation:

4 0
3 years ago
Ben solves -24=5(g+3) by first dividing each side 5. Amelia solves the equation by using the distributive property. Whose method
Natali5045456 [20]

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4 years ago
Read 2 more answers
Tru or false? If you took a true "if then" statement, inserted a not in each clause, and reversed the clauses, the new statement
sleet_krkn [62]

when "If P, then Q" is true, "if not Q, then not P¨ is also true.

So the given statement is true.

<h3>The statement is true or false?</h3>

Let's suppose we have a conditional statement:

If P, then Q.

That is true.

The statement says that:

If not Q, then not P.

Is also true.

Now, let's go to the original conditional statement.

"If P, then Q"

This means that always that P is true, then Q must also be true. But we can have cases where P is false and Q is true. (this means that Q can't be true if P is not true).

Now, if we affirm that Q is false (or not Q is true, these are the same thing). Then we must have that P is also false (or not P is true).

So the given statement is true.

when:

If P, then Q

is true.

if not Q, then not P¨

is also true.

If you want to learn more about conditional statements:

brainly.com/question/11073037

#SPJ1

3 0
2 years ago
Two friends have a total of 60 coins. If the first fried gives 1/4 of his coins to the second friend, they will have an equal nu
kakasveta [241]

Answer:

The first friend has 40 coins.

Step-by-step explanation:

The statement says that the two friend have a total of 60 coins, which can be expressed as:

x+y=60 (1), where:

x is the first friend

y is the second friend

Also, the statement says that if the first friend gives 1/4 of his coins to the second friend, they will have an equal number of coins which means that if you subtract 1/4 of the coins the first friend has this would be equal to the number of coins the second friend has now, which is:

x-1/4x=y+1/4x

x-1/4x-1/4x=y

y=x-2/4x

y=x-1/2x (2)

Next, you have replace (2) in (1) and solve for x:

x+x-1/2x=60

2x-1/2x=60

3/2x=60

x=60/(3/2)

x=(60*2)/(1*3)

x=120/3

x=40

Finally, you can replace the value of x in (2) in order to find the value of y:

y=40-1/2(40)

y=40-(20)

y=20

According to this, the answer is that the first friend has 40 coins.

8 0
3 years ago
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