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BaLLatris [955]
3 years ago
12

It takes Ernie 45 hours to paint the house alone. Silene can do it in 36 hours alone. How long

Mathematics
1 answer:
Alchen [17]3 years ago
4 0
Therefore it takes
2.4

hrs
for Sally & John to paint the house together
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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!<br><br> Multiply.<br><br> (7x + 3)(4x − 5)
Anni [7]

(7x + 3)(4x -5)

7x*4x+7x(-5)+3*4x+3(-5)

7*4xx-7*5x+3*4x-3*5

7*4xx-7*5x+3*4x-3*5

=28x^2-23x-15

Hope this helps!

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3 0
3 years ago
Katya treated everyone in theater to a pizza party. She bought 12 pizzas and six 2-liters of soda. The bill was $137.64 (before
sweet-ann [11.9K]

let the price of pizza and soda( per 2 litre bottle) be x and y

from 1st condition

12x+2y=137.6.....(1)

from 2nd condition

x+y =11.95.......(2)

multiply eq. (2) by 2

2x+2y=23.9.....(3)

subtracting (1) and (3)

12x+2y=137.6

2x+2y= 23.9

10x = 113.7

x=113.7/10

x=11.37

2(11.37)+2y=23.9

22.74+2y=23.9

2y=23.9-22.7

2y=1.2

y=0.6

So the prices of  the pizza and soda are 11.37 and 0.6 dollars.

4 0
2 years ago
Jimmy loaded three bags of sand into his wheelbarrow. The bags weighed 24
Rudik [331]
The whole numbers add up to 100. So now we are left with 1/2 or 0.5, 3/5 or .60, and 1/8 or .125. Those add up to 1.225 so the amount of sand in pounds in the wheelbarrow is 101.225. Hope I helped! If you have any questions just leave a comment.
3 0
3 years ago
The following set is bimodal. PLZ ANSWER ASAP
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Im srry but in my calculations thinking this following statement might be true thats what i say so my answer is(true)
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3 years ago
Read 2 more answers
The product of five times p and seven times q is
enot [183]

Answer:

Step-by-step explanation:

(5p)(7q)=35pq

7 0
3 years ago
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