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larisa86 [58]
4 years ago
12

RATIO HELP PLEASE

Mathematics
1 answer:
9966 [12]4 years ago
5 0
1.\\x-how\ many\ biscuits\ has\ Gemma\\ \\x+4x=20\ \ \ \Leftrightarrow\ \ \ 5x=20\ \ \ \Leftrightarrow\ \ \ x=4\ \ \ \Rightarrow\ \ \ 4x=16\\ \\Ans.\ Gemma\ has\ 4\ biscuits\ and\ Zak\ has\ 16\ biscuits.

2.\\x-how\ many\ marbles\ has\ Asif\\ \\7x+x=80\ \ \ \Leftrightarrow\ \ \ 8x=80\ \ \ \Leftrightarrow\ \ \ x=10\ \ \ \Rightarrow\ \ \ 7x=70\\ \\Ans.\ Asif\ has\ 10\ marbles\ and\ Emily\ has\ 70\ marbles.

3.\\2x-how\ many\ pencils\ has\ Niamh\\ \\2x+3x=10\ \ \ \Leftrightarrow\ \ \ 5x=10\ \ \ \Leftrightarrow\ \ \ x=2\ \ \ \Rightarrow\ \ \ 2x=4\ \ and\ \ 3x=6\\ \\Ans.\ Niamh\ has\ 4\ pencils\ and\ Jack\ has\ 6\ pencils.
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I don’t know the answer I just need some points to ask more questions !!! have a good day !!
Scilla [17]

Answer:

have a good day too

Step-by-step explanation:

6 0
3 years ago
-2 -13.8x = -8 -(6x+1)
Varvara68 [4.7K]
-2 -13.8x = -8 -6x -1
First, I distributed the negative 1 that was outside of the parentheses to the positive 6x and the positive 1.

-2 -13.8x = -9 -6x
Then I added the negative 8 to the negative 1 which equals negative 9.

-2 -13.8x +6x = -9 -6x +6x
After that I used the addition property and added a positive 6x to both sides.

-2 -7.8x = -9
Then simplifying.

+2 -2 -7.8x = -9 +2
After simplifying, I used the addition property again, adding a positive 2 to both sides.

-7.8x = -7
Simplified.

-7.8x (-1) = -7 (-1)
Then I multiplied both sides by with a negative 1 since the variable cannot be a negative.

7.8x = 7
Simplified

(1/7.8) 7.8x = (1/7.8) 7
Then, to isolate the veriable, I multiplied 1/7.8 to both sides.

x = 1.11428571429
The answer !

I hope this helped !
7 0
3 years ago
In QRS the measures of S = 90° and the measures of Q = 64° and RS = 16 feet find the length of QR to the nearest 10th of a foot
leva [86]

Answer:

vfd

Step-by-step explanation:

ddf

7 0
3 years ago
What am I supposed to do?
qaws [65]

its a virus dont  fall for it

Step-by-step explanation:

6 0
3 years ago
What is 5+10+10+5. Please explain
Whitepunk [10]

Answer: 30

Step-by-step explanation:

5+5 = 10

10 + 10 = 20

10 + 20 = 30

Hope this helps

Plz mark brainliest

5 0
3 years ago
Read 2 more answers
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