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MrRa [10]
2 years ago
9

I dont like percents , please help. Thank you

Mathematics
2 answers:
MariettaO [177]2 years ago
6 0

Answer:

20 questions are on the test

you have 16/? which is 80% imagine it as fractions

\frac{16}{x} = \frac{80}{100}

so you want to multiply on the diagonal

meaning multiplying our first fraction's numerator, 16 by the percentages denominator

example: 16×100

ok, now that you do that divide by the numerator in this case 80 this gets us 20. Hope i helped and sorry if this was long.

Mice21 [21]2 years ago
5 0

Answer: 20

Step-by-step explanation:

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Nicole sold 1 cherry pie and 9 pumpkin pies for $60. Lisa sold 11 cheery pies and 4 pumpkin pies for $90. what's the cost each o
zubka84 [21]
X= cost per cherry pie
y= cost per pumpkin pie

NICOLE
1x + 9y= $60

LISA
11x + 4y= $90


STEP 1
multiply Nicole's equation by -11

-11(1x + 9y)= -11($60)
multiply -11 by all terms

(-11 * x) + (-11 * 9y)= (-11 * 60)

-11x - 99y= -660


STEP 2
add Nicole's new equation from step 1 to Lisa's equation to solve for y (using the elimination method)

-11x - 99y= -660
11x + 4y= 90
the x terms "cancel out"

-95y= -570
divide both sides by -95

y= $6 per pumpkin pie


STEP 3
substitute y value into either original equation to solve for x

x + 9y= $60

x + 9(6)= 60

x + 54= 60
subtract 54 from both sides

x= $6 per cherry pie


CHECK
11x + 4y= $90
11(6) + 4(6)= 90
66 + 24= 90
90= 90


ANSWER: Each cherry pie costs $6 and each pumpkin pie costs $6.

Hope this helps! :)
3 0
3 years ago
Choose whether each decimal terminates or repeats.
Maurinko [17]

Answer:

Step-by-step explanation:

3.232323-repeats

1.789-terminates

0.99-repeats

6.25-terminates

7 0
3 years ago
Read 2 more answers
A product that is a chemically bonded combination of reactants will form in which type of reaction? Select three options.
alex41 [277]

Answer: synthesis

polymerization

oxidation

Step-by-step explanation:

3 0
2 years ago
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Y=2x^2-6x+4<br><br>separate the values with a comma
Zolol [24]
Y= 2 (x^2-3x+2)
y= 2 (x-1) (x-2)
x=2 and x=1
8 0
3 years ago
Read 2 more answers
Two trains start from Fort Worth traveling at the same speed. The trip for Train W takes 20 hours, while the trip for Train Z ta
MrMuchimi

Answer:

The equation that best models this situation is :

b. \frac{x}{20}=\frac{x+400}{25}

Distance traveled by Train W = 1600 miles

Distance traveled by Train Z = 2,000 miles

Step-by-step explanation:

Given:

Time taken for Train W to complete a trip = 20 hours

Time taken for Train Z to complete a trip = 25 hours

The city Train Z is traveling to is 400 miles farther away than the city Train W is traveling to.

both trains have same speeds and start from same location.

To find the distance in total each train travels.

Solution:

<em>Let length of the trip of Train W be </em>= x miles

Speed of Train W can be given as :

⇒ \frac{Distance}{Time}

⇒ \frac{x}{20}\ miles/h

<em>So, the length of the trip of Train Z will be</em> = (x+400) miles

Speed of Train Z can be given as :

⇒ \frac{Distance}{Time}

⇒ \frac{x+400}{25}\ miles/h

Since the speeds are same, so the equation to find x can be given as:

⇒ \frac{x}{20}=\frac{x+400}{25}

Solving for x

Multiplying both sides by 100 to remove fractions.

⇒ 100\times \frac{x}{20}=100\times \frac{x+400}{25}

⇒ 5x=4(x+400)

Using distribution.

⇒ 5x=4x+1600

Subtracting both sides by 4x

⇒ 5x-4x=4x-4x+1600

⇒ x=1600

Thus, Distance traveled by Train W = 1600 miles

Distance traveled by Train Z = 1600+400 = 2,000 miles

3 0
3 years ago
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