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mojhsa [17]
3 years ago
12

Dan can tile a floor in 3 hours. his assistant could tile the same floor in 8 hours. if they work together, how long will it tak

e to tile the floor?
Mathematics
1 answer:
natta225 [31]3 years ago
7 0

There is a formula for this:

Total Time = (worker1 * worker2) / (worker1 + worker2)

(3 * 8) / (3 + 8)

24 / 11 =

2.1818181818 hours


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Suppose you got 8 mangoes and 3 apples for $18 and 3 mangoes and 5 apples for $14.50.
Mandarinka [93]
Let x = cost of mango
y = c of apples 
<span>8x+3y=18.
3x+5y=14.5 </span>

<span> </span>
<span>24x+9y=54
24x+40y=116
multiplying them with 3 and 8 resectively. </span>
<span>subtract one from the other we get </span>
<span>40y-9y=116-54 </span>
<span>31y=62 </span>
<span>y=2.
cost of apple=2$  per apple
</span><span>8x+3y=18,
 8x+3(2)=18.
8x=12. x=12/8=1.5 </span>
<span>cost of mango i= 1.5 $ per mango
hope this helps</span>
7 0
4 years ago
Find the area of the parallelogram 1.2 cm 4 cm 1 cm
qaws [65]

Answer:

4cm^2

Step-by-step explanation:

Area of parallelogram = base × height

Area = 4 × 1

= 4cm^2

4 0
3 years ago
Translate the word phrase into a variable expression. seven less than the quotiont of x and 9
aev [14]

Quotient of x and 9=\frac{x}{9}

And 7 less than from it means=\frac{x}{9} - 7 (Answer)

8 0
3 years ago
Pls anyone could help me with this?
Whitepunk [10]

Answer: 42 degrees

Step-by-step explanation:

Alright so we have 51 and 25 in the first triangle that would mean we have to subtract 180 by 76, since every triangle has 180 degrees.

180 - 76 = 104


that means the other side is 104 and by adding 34 and using the same concept,


180 - 138 = 42!

4 0
2 years ago
Read 2 more answers
Solve for y.
pickupchik [31]
D, Because all you would need to do is.. 4 x 36 which gives you the answer of 144.
6 0
3 years ago
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