3 years ago

This is super easy ik it its just my brain hurts, will give branliest

Mathematics

1 answer:

natka813 [3]3 years ago

3 0

.5x=10+.25x
.25x=10
x=40
When you buy 40 songs
The cost equals 20$

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An actual Canadian quarter has a diameter of 23.88 mm. Calculate the scale factor used to create the

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Answer:

2.6

Step-by-step explanation:

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3 years ago

Parallelogram PARL is similar to parallelogram WXYZ. If AP = 15, PL = 25, and WZ = 75, find the value of c.

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3 years ago

If the sales tax on 150 is 7.50, what is the percent of sales tax?

Pachacha [2.7K]

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3 years ago

When Joey dives off a diving board, the equation of his pathway can be modeled by h = -16t2 + 15t + 12. A) Find Joey's maximum h

sergeinik [125]

Answer:

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b) 0.47 secs

Step-by-step explanation:

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a = -16 , b = 15, c= 12

-b/2a = -15/2(-16)

= -15/-32

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8 0

4 years ago

Jenna and Heidi together have $60. Jenna has $9 more than twice Heidi’s amount. How much money does each have?

Marina86 [1]

Jenna has $43 and Heidi has $17.

Step-by-step explanation:

Total amount = $60

Let,

Amount of Jenna = x

Amount of Heidi = y

According to given statement;

x+y=60 Eqn 1

x=2y+9 Eqn 2

Putting value of Eqn 2 in Eqn 1;

$(2y+9)+y=60\\2y+9+y=60\\3y=60-9\\3y=51$

Dividing both sides by 3,

$\frac{3y}{3}=\frac{51}{3}\\y=17\\$

Putting y=17 in Eqn 2

$x=2(17)+9\\x=34+9\\x=43$

Jenna has $43 and Heidi has $17.

Keywords: linear equations, substitution method

Learn more about substitution method at:

#LearnwithBrainly

4 0

4 years ago