-(4/5)*(3/7)*(15/16)*(-14/9) [two negatives make one positive]
=(4*3*15*14)/(5*7*16*9) [simplify 4/16]
=(3*15*14)/(5*7*4*9)
=(3*3*14)/(7*4*9)
=(14)/(7*4)
=(2)/(4)
=1/2

5 0

3 years ago

Given that 2x – 2y = 23

lidiya [134]

Answer:

x = 41/2

Step-by-step explanation:

I am assuming that we are finding 'x' when y = 9.

$2x-2y=23\\\\2x-2(9)=23\\\\2x-18=23\\\\2x-18+18=23+18\\\\2x=41\\\\\frac{2x=41}{2}\\\\\boxed{x=\frac{41}{2}}$

Hope this helps!

8 0

3 years ago

Read 2 more answers

Maya earns $6.36 for each hour of work. She worked 7.5 hours yesterday. Find how much she earned yesterday.

Marysya12 [62]

<span>6.36 x 7.5 = 47.7

she earned 47.7$</span>

4 0

3 years ago

Read 2 more answers

Mariana had a $20 gift card to an online music store. she spent the entire amount on songs, which cost $1 each, and music videos

Vika [28.1K]

Is this mult-choice?

8 0

3 years ago