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Helen [10]
2 years ago
10

Yaro buys a baseball cap for $9.50. He also buys a new baseball. Yaro speads $13.50 altogether.

Mathematics
1 answer:
VMariaS [17]2 years ago
4 0

Answer:

13.5 = 9.5 + x

x=4

Step-by-step explanation:

In this problem, the price of the baseball cap, which is $9.50, and a baseball, whose price is unknown (and therefore must be the variable), total $13.50. So, to set up the equation add the two prices and set them equal to the total, 9.5+x=13.5.

Then, using the subtraction property of equality subtract 9.5 from both sides. This means x=4, so the baseball cost 4 dollars.

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what's a math equation that equals 19? it has to be an equation with x and the answer Is 19 so whats the equation guys??
expeople1 [14]
There are many different types of equations we can use to allow x to equal 19! Below are some examples :) See if you can come up with some on your own based off of these examples:

5x = 95.....................................Divide both sides b 5

x = 19.......................................There's one for you :)

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1 + x - 5 = 15............................Combine like terms

x - 4 = 15..................................Add 4 to both sides

x = 19
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There's just a couple of examples, but see if you can come up with some on your own and let me know if you get stuck!

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3 years ago
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The polynomial 3x2 is a with a degree of .
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To determine the degree of a polynomial, you look at every term:

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So, for example, the degree of 7x^{55} is 55, while the degree of xy^2z^4 is 1+2+4 = 7

Finally, the term of the degree of the polynomial is the highest degree among its terms.

So, 3x^2 is a degree 2 polynomial (although it only has one term)

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Answer:

CD= 34

Step-by-step explanation:

As CD is the diameter the circle divides to half and point E is on the circle ∴∠CED =90° (angle of a semi circle)

as CD is the diameter it would be the lengthiest of all ∴ CD is hypotenuse

so CD =\sqrt{16^{2} + \sqrt{30^{2} } } }

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8 0
3 years ago
This Question: 1 pt
mamaluj [8]

Answer:

Amount invested in 5% interest = $14,000

Amount invested in 9% interest = $2,000

Step-by-step explanation:

Given:

Total amount invested = $16,000

Total interest earned = $880

Uknowns:

Let:

x = Money invested in 5%(0.05) interest

y = Money invested in 9%(0.09) interest

Equations:

Equation for the total amount invested:

x + y = 16,000 <--- equation 1

Equation for the total interest earned:

0.05x + 0.09y = 880 <--- equation 2

Solution:

Solving for x and y using substitution method,

In equation 1:

x + y = 16,000

y = 16,000 - x <--- equation 3

Substitute equation 3 in equation 2 to solve for x

0.05x + 0.09y = 880

0.05x + 0.09(16,000 - x) = 880

0.05x + 1,440 - 0.09x = 880

0.05x - 0.09x = 880 - 1,440

-0.04x = -560

x = -560/-0.04

x = $14,000 (amount invested in 5% interest)

Substitute the value of x in equation 3 to solve for y

y = 16,000 - x

y = 16,000 - 14,000

y = $2,000 (amount invested in 9% interest)

8 0
3 years ago
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