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hram777 [196]
2 years ago
7

"Expand the brackets and Simplify"(pls i need help asap)​

Mathematics
1 answer:
givi [52]2 years ago
6 0
A) 2(1+2c)

2+4c = 2+4c

B) 6(14r-2t)

= 84r-12t
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Solve for g:<br> 3/16=(-5/4)+g
Musya8 [376]

Answer:

g = 23/16

Step-by-step explanation:

3/16 = (-5/4) + g

g = 5/4 + 3/16

g = 23/16

7 0
3 years ago
(Geometry) The answers are x = 15 and y = 9 but I don't know how. Help me understand this
Kryger [21]

Check the picture below.

\bf \stackrel{\measuredangle DAC}{4y+2x}~~=~~\stackrel{\measuredangle BCA}{9y-x}\implies 2x=5y-x\implies 3x=5y\implies \boxed{x=\cfrac{5y}{3}} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\measuredangle DAB}{[(4y+2x)+35]}~~+~~\stackrel{\measuredangle ADC}{5x+4}~~=~~180\implies 4y+2x+5x+39 = 180 \\\\\\ 4y+7x+39=180\implies 4y+7x=141\implies \stackrel{\textit{substituting "x"}}{4y+7\left( \boxed{\cfrac{5y}{3}} \right)} = 141

\bf 4y+\cfrac{35y}{3}=141\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{3}}{3\left( 4y+\cfrac{35y}{3} \right)=3(141)}\implies 12y+35y=423 \\\\\\ 47y=423\implies y=\cfrac{423}{47}\implies \blacktriangleright y = 9 \blacktriangleleft \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{since we know that}}{x=\cfrac{5y}{3}}\implies x = \cfrac{5(9)}{3}\implies \blacktriangleright x = 15 \blacktriangleleft

4 0
3 years ago
A tiny statue of Tom Brady is 2 inches tall.
swat32

Answer:

5 feet

Step-by-step explanation:

The statue is 2 inches tall and 1 inch=2.5

Multiply 2.5 by 2 for a 2 inch statue

2.5×2=5

6 0
3 years ago
Read 2 more answers
Explain your process of converting a mixed number to an improper fraction.explain your process of converting a improper fraction
scoundrel [369]
To make a improper fraction (eg11/4) a mixed number (eg 2 3/4) you must see how many times the numerator (number on the top) fits into the denominator (number on the bottom). This will give you the Whole number (big number) whatever is left will be the new numerator on the fraction (keeping the denominator the same).

To make a mixed number a improper fraction multiply the whole number by the denominator. Then add this number to the numerator.
4 0
3 years ago
The sum of two integers is 9. Their difference is 5. What are the two integers?
DanielleElmas [232]

Answer:

D) 2 and 7

Step-by-step explanation:

x+y=9

x-y=5

----------

2x=14

x=14/2=7

7+y=9

y=9-7=2

5 0
3 years ago
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