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3 years ago

Mary wants to paint her bedroom. Each wall takes 1/3 of a liter of paint. If she buys 2 liters ? point

Mathematics

1 answer:

sashaice [31]3 years ago

7 0

2 liters of paint / 1/3 liter per wall = 2 x 3/1 = 6/1 = 6 walls

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Candice buys a board thats is 12 feet long. the store incorrectly measures and prices the board at 13.2 feet. whats the percent

podryga [215]

Determine first the difference between the incorrectly measured board and the correct one. The subtraction would result to 1.2 ft. The percent error is calculated by dividing this value by the correct value and then multiply by 100%. (1.2 ft / 12 ft) x 100% = 100%. Thus, the percent error is 10%.

7 0

3 years ago

Read 2 more answers

John paid $222 for four hours of skiing and two hours boating. He paid $213 for two hours skiing and three hours boating. What i

Inga [223]

Answer:

Skiing costs $30 per hour and Boating costs $51 per hour.

Step-by-step explanation:

Let cost per hour of skiing be x and cost per hour of boating be y. Let's dissect the problem into 2 simultaneous equations.

"John paid $222 for four hours of skiing and two hours boating":

$4x+2y=222$

"He paid $213 for two hours skiing and three hours boating":

$2x+3y=213$

Now, if we solve for x in the 2nd equation and plug it in the 1st equation, we will have the value for y. Work shown below.

$2x+3y=213\\2x=213-3y\\x=\frac{213-3y}{2}\\Equation 1: 4x+2y=222\\Substituting :\\4(\frac{213-3y}{2})+2y=222\\2(213-3y)+2y=222\\426-6y+2y=222\\426-222=6y-2y\\204=4y\\y=\frac{204}{4}=51$

Hence, y = 51

Now, substituting this y value into the 1st equation and solving for x will give us the value of x.

$First Equation: 4x+2y=222\\4x+2(51)=222\\4x+102=222\\4x=222-102\\4x=120\\x=\frac{120}{4}=30$

Hence, skiing costs $30 per hour and boating costs $51 per hour.

4 0

3 years ago

A={ 0,1,3,5,6}; B={1,2,3,7} draw the venn diagram of AUB Writ

Sati [7]

Answer:

Here,

n(A)={0,1,3,5,6}

n(B)={1,2,3,7}

n(AUB)=?

we know that,

AUB={0,1,2,3,5,6,7}

Step-by-step explanation:

is it okay ?

hopefully it works <3 ❣️

8 0

2 years ago

How to step by step multiple 15×77

solong [7]

Answer:

multiply 77 by 10 which is 770 then you multiply it by 5 which is half of 10 so 385 then add them together and you get 1155

3 0

4 years ago

2/3 divided by 2 1/2=???? in simplest form ASAP PLEASE

8_murik_8 [283]

Answer:4/15

Step-by-step explanation:

Change the whole number into a fraction and divide both and you get 4/15 or get photomath with math problems works perfectly

4 0

3 years ago