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4 years ago

Helpppp I don’t get the question!!!

Mathematics

1 answer:

avanturin [10]4 years ago

4 0

Answer:

43.75 hope i helped you

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17 13/18 divided by 2 7/9

erik [133]

let's firstly convert the mixed fractions to improper fractions and then divide.

$\bf \stackrel{mixed}{17\frac{13}{18}}\implies \cfrac{17\cdot 18 +13}{18}\implies \stackrel{improper}{\cfrac{319}{18}}~\hfill \stackrel{mixed}{2\frac{7}{9}}\implies \cfrac{2\cdot 9+7}{9}\implies \stackrel{improper}{\cfrac{25}{9}} \\\\[-0.35em] ~\dotfill$

$\bf \cfrac{319}{18}\div \cfrac{25}{9}\implies \cfrac{319}{\underset{2}{~~\begin{matrix} 18 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}\cdot \cfrac{\stackrel{1}{~~\begin{matrix} 9 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}{25}\implies \cfrac{319}{50}\implies 6\frac{19}{50}$

7 0

4 years ago

What is a number that when you multiply it by 8 and subtract 12 from the product, you get 76?

Dmitry [639]

Answer:

Step-by-step explanation:

Equation: 8x - 12 = 76

Add 12 to both sides

8x = 88

Divide both sides by 8

x = 11

Hope this helped :)

3 0

3 years ago

I gave my brother 1/5 of my candy, 1/4 to my friend and had 11 pieces left over. How many pieces did I give my brother?

AnnyKZ [126]

x = total number of candies

$\bf \stackrel{\textit{my brother}}{\cfrac{1}{5}x}+\stackrel{\textit{my friend}}{\cfrac{1}{4}x}+11~~=~~\stackrel{\textit{total}}{x} \\\\\\ \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{20}}{20\left( \cfrac{x}{5}+\cfrac{x}{4}+11 \right)=20(x)}\implies 4x+5x+220=20x\implies 9x+220=20x \\\\\\ 220=11x\implies \cfrac{220}{11}=x\implies 20=x~\hspace{10em}\stackrel{\textit{to my brother}}{\cfrac{20}{5}\implies 4}$

4 0

3 years ago

Please help me out!!! I am stuck!!! Brainiest will be marked!!!

Vlada [557]

The points are: (-3, -20) (6, 79) (2, 35)

3 0

3 years ago

Solve for x. 6(x+1)-2x-1=(x+15)+(x+16)?

Aleksandr [31]

Answer:

x=13

Step-by-step explanation:

6(x+1)-2x-1=(x+15)+(x+16)

6x+6-2x-1= x+ 15+x+16

4x+5= 2x+31

2x+5=31

2x=26

x=13

7 0

4 years ago