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2 years ago

I will give brainlist

Mathematics

1 answer:

-BARSIC- [3]2 years ago

7 0

The 80% of 50 is 40$
So the sale is 20% which is 10$

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Y-axis

butalik [34]

Answer:

2+-7x2-30=2+

Step-by-step explanation:

had a tutor work it out

5 0

3 years ago

Darius is putting tiles on the roof of his house. After working for 3 1/3 hours, he has completed 4/5 of the roof. Can Darius pu

tangare [24]

Answer:

No.

Step-by-step explanation:

It is given that Darius is putting tiles on the roof of his house.

Darius had completed = $\frac{4}{5}$ th of the work

He takes time = $3 \frac{1}{3}$ hours to complete $\frac{4}{5}$ th of the work

The remaining work = $1 -\frac{4}{5}$

$=\frac{5-4}{5}$

$=\frac{1}{5}$

∴ Darius completes $\frac{4}{5}$ th of the work in = $\frac{10}{3}$ hours

So, $\frac{1}{5}$ th of the work in = $\frac{10}{3} \times \frac{5}{4} \times \frac{1}{5}$ hours

$=\frac{10}{12}$ hours

Therefore total time taken to complete the work $=\frac{10}{3}+\frac{10}{12}$ hours

$=\frac{40+10}{12}$ hours

$=\frac{50}{12}$ hours

$=4\frac{2}{12}$ hours

$=4\frac{1}{6}$ hours

Thus, Darius continues to work at the same rate will not be able to complete the work in 4 hours.

8 0

2 years ago

One canned juice is 15% orange juice another 10% orange juice. How many liters of each should be mixed together in order to get

Delicious77 [7]

Equation:
0.15x + 0.10(5-x) = 0.11*5
---
Multiply thru by 100:
15x + 10*5 - 10x = 11*5

---
5x = 5
x = 1 liter (amt. 15% oj needed)
----
5-x = 4 liters (amt of 10% oj needed)
======

3 0

2 years ago

I have to solve 3x^2+5x=2 but Im having some confusion.

stellarik [79]

It´s x = 2
I´m positive that is right

5 0

2 years ago

Solve the system of equations using elimination: 8x - 8y = 0 and -5x - 7y= -12.

Lena [83]

Answer:

My answers were (1,1) for both lmk if it works ;)

Step-by-step explanation:

5 0

2 years ago