3 years ago

Can you answer these question ........................HEY...............

Mathematics

1 answer:

Natasha_Volkova [10]3 years ago

8 0

I hope this helps you

I think you forgot add your question;:)?

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James estimated the total cost of groceries to be $50. The actual cost is$65. What is the percent error. Round to nearest whole

vampirchik [111]

Answer:

Step-by-step explanation:

15%

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4 years ago

If 75% of x is 18 then find the value of x?

VladimirAG [237]

Set up an equation:

0.75x = 18

Divide both sides by 0.75:

x = 18/0.75

x = 24

Answer: 24

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3 years ago

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The ribbon was 3 1/4 inches wide and had an area of 19 1/2 square inches. What is the length of the ribbon? Please Help Will Giv

miv72 [106K]

Hello!

The formula for finding area is l × w

If the area is 19 ½ inches and it was 3 ¼ inches wide, then the length will be 19 ½ ÷ 3 ¼ (Area ÷ Width)

$19 \frac{1}{2} \div 3 \frac{1}{4}$

Change both to improper fraction

$19 \frac{1}{2} = \frac{39}{2}$

$3 \frac{1}{4} = \frac{13}{4}$

$\frac{39}{2} \div \frac{13}{4}$

Keep 39/2
Change ÷ to ×
Flip 13/4 = 4/13

$\frac{39}{2} \times \frac{4}{13} = \frac{156}{26} = 6$

$\framebox {The length of the ribbon is 6 inches}$

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3 years ago

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Solve the simultaneous equations<br> -x + 5y = -7<br> x + y = – 5<br> x = 1<br> y= 0

vodomira [7]

y= -5-x

-x + 5(-5-x) = -7

-x -25-5x =-7

-x-5x = 25 -7

-6x= 18

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y= -5 +3

=-2

-(-3) + 5(-2)

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3 years ago

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What is the domain and range of this

Bond [772]

Domain: What are all the possible x values?
[-6, 0) U (0,2)

[ ] Closed brackets means including a number
( ) Open brackets means not including that number

Range: All possible y values
(1, 6]

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3 years ago