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gizmo_the_mogwai [7]
3 years ago
5

Please help me fast! I will give brainly

Mathematics
2 answers:
Afina-wow [57]3 years ago
8 0

Answer:

He's correct.

Step-by-step explanation:

As long as there is no change in sign of the variables.

Masja [62]3 years ago
3 0
10-(5x2)+7 or 10-5x2+7
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Question in image! Thanks for help.
irinina [24]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Can someone help me I have two more other questions they are 15 points each I just posted them right now! Thanks so much
nlexa [21]

Answer:

$10 coins: 21

$20 coins: 24

Step-by-step explanation:

heyy me again

So we can create 2 equations where

x = number of $10 coins

y = number of $20 coins:

x + y = 45

10x + 20y = 690

we can move equation 1 around so that we can get a value of x

x = 45 - y

now we can substitute x into the second equation

10(45 - y) + 20y = 690

450 - 10y + 20y = 690

10y = 240

y = 24

Now plug in y back into the first equation

x = 45 - y

x = 45 - 24

x = 21

8 0
3 years ago
6) 6n+ 3 = 3(-7n + 1)<br> what did you guys get for the answer?
Allushta [10]

Answer:

n=0

Step-by-step explanation:

Clear parenthesis w/ distribution:

3(-7n+1)=-21n+3

Move everything over to one side:

6n+3=-21n+3

6n=21n                                                   Subtract the 3 on the right.

-15n=0                                                                      Subtract the 21.

n=0                                                                              Divide the -15.

5 0
3 years ago
Read 2 more answers
12 friends share four pizzas equally what fraction of the pizza does each friend get
KonstantinChe [14]

Since 12 friends share four pizzas equally,

3 friends share a pizza equally.

Hence, each friend gets 1/3 of a pizza.

6 0
3 years ago
Read 2 more answers
3. In the diagram, what is the value of x? A. 98° B. 82° C. 108° D. 78°
jek_recluse [69]
Where’s the diagram...?
6 0
4 years ago
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